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| Nov4-06, 03:23 PM | #1 |
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Supernova Redshift, et alAs discussed on s.a.r. Bob Day has used Matlab to test the distance red- shift relation found by replacing the affine connection of gtr with a teleconnection. The results are posted on the bottom of his home page at http://bobday.vze.com. They are: For the first year data from The Supernova Legacy Survey, Astier arXiv:astro-ph/0510447 he found: Standard model optimum Omega_m = 0.263, chi-square = 113.5679 teleconnection model, optimum Omega_m = 1.06, chi-square = 115.2288 I believe chi^2=115 on a sample of 115 is 1sd, the expected result if error margins are correctly stated, showing that the teleconnection model fully accounts for missing mass. This is the text of my paper, excluding the graphs and the mathematical appendix. I have used W instead of Omega, throughout. Does a Teleconnection between Quantum States account for Missing Mass, Galaxy Ageing, Supernova Redshift, MOND, and Pioneer Blue-shift? Abstract: There have been previous suggestions, notably by Einstein, that the affine connection in general relativity might be replaced with a teleparallel one. This paper carries out a preliminary investigation of the empirical implications of a teleparallel displacement of momentum between initial and final quantum states, using conformally flat quantum coordinates. An exact formulation is possible in an FRW cosmology in which cosmological redshift is given by 1+z = (a_o/a(t))^2.. This is consistent with observation for a universe expanding at half the rate and twice as old as indicated by a linear law, and, in consequence, requiring a quarter of the critical density for closure. Supernova redshifts indicate a universe a little over critical density and are consistent with zero cosmological constant. Quantum coordinates exhibit an acceleration in time, resulting in the anomalous Pioneer blue-shift and in the flattening of galaxies' rotation curves. These appear as optical effects and do not affect classical motions. Milgrom's phenomenological law (MOND) is precisely obeyed. 1 Background There is growing concern in Cosmology about unexplained empirical phenomena. The standard model of accelerating expansion is successful in matching parameters to observation, but, while there is no true reconciliation between general relativity and quantum mechanics, science should remain open to the prospect that these phenomena may have some deep underlying reason in new physics. Any new model of physics should adhere to fundamental principles such as the cosmological principle and the principle of relativity, but the true test is whether predictions match observation, and whether a model is capable of making new predictions or providing explanations where previously there were none. This paper carries out a preliminary investigation of the empirical implications of a modification to general relativity adhering to fundamental principles. The tests described here could have falsified the model, but an initial analysis of current astronomical data is consistent with a universe of just above critical mass, with no cold dark matter or cosmological constant, and no apparent timescale problem. As a bonus it models the flattening of galaxies' rotation curves and Pioneer blue-shift, without requiring either a change to Newtonian dynamics or galactic haloes (table 1). Table 1: Properties Compared Connection Affine Teleconnection Topology Open Any W 0.26+-0.05 1.06+-0.15 WL 0.74-+0.05 -0.1-+0.2 WB 0.025-0.05 0.1-0.2 Age of universe 14X10^9 yrs 16-20X10^9yrs Age at z=6 7x10^8yrs 4.5x10^9yrs Baryon:Non-baryon ~15:1 4-9:1 Expansion rate adot/a=H0 adot/a=H0/2 Pioneer blue shift unexplained ap=H0c MOND CDM aM=H0c/8 wave motion curved space? flat space classical motion geodesic geodesic Table 2: Magnitude-Redshift Relation first order comparison affine: m-M ~ 5logz + 1.086(1-q)z teleconnection: m-M ~ 5logz + 1.086(2-q)z It is known on theoretical grounds that new physics is required to reconcile general relativity and quantum theory (Dirac, 1964). Eppley and Hannah (1977) showed that if gravitational measurement causes wave function collapse in curved space, violation of the uncertainty relationships can only be avoided by giving up conservation of momentum. Individual detection of photons from distant stars strongly suggests that we cannot be certain of the interpretation of redshift without first having a rigorous formulation of quantum motions in curved space time. Einstein (1930) found problems with electrodynamics in curved space time, and suggested that the affine connection used in general relativity might be replaced with a teleparallel connection. Such a replacement can be motivated in the orthodox interpretation of quantum mechanics; if it does not make sense to talk of position between measurements then it is also without sense to talk of geodesic motion of a photon emitted from a distant star and detected on Earth. Since the connection is meaningful only at the times of measurement it will be called a teleconnection. Standard general relativity and quantum mechanics are assumed, excepting that wave functions are defined using quantum coordinates (section B3), not in curved spacetime. A heuristic description of a teleconnection is given in section 2. This should be sufficient to understand the empirical tests described in sections 3 to 7. A formal treatment is deferred to Appendix B, Mathematical Description of the Teleconnection, showing that it can be consistently defined in an FRW cosmology, that the prescription reduces to the standard affine connection in the classical correspondence, and that geodesic motion obtains for classical particles and for a beam of light). Graphical display of comparison of data with theory is given in Appendix A, Hubble Diagrams for Type Ia Supernovae. A closed universe with zero cosmological constant and no cold dark matter will be discussed. Other models are possible but up to the accuracy of the tests applied here this simple model is consistent with data, gives accounts of observed phenomena which the standard model has been unable to explain and makes clear predictions about future tests. In the instance of galactic rotation curves testing has been done, not through direct statistical analysis, but by deriving a general law (MOND) already established from statistical analysis. The distance- redshift relation has been analysed by Bob Day using data sets from Riess (2004) and Astier (2005) and a best fit has been found with a universe with just over critical mass. 2 The Teleconnection This is _not_ a teleparallel theory using the Weitzenbrock connection (see e.g. Arcos and Pereira, 2004). Torsion will be removed as part of wave function collapse and in the classical correspondence gravity will be described by curvature, as is normal in general relativity. In general relativity it is assumed that photon momentum is parallel transported through large distances. This assumption takes no account of the propagation of a photon wave function in a curved space-time, which would imply that a photon of precise momentum at time of emission would not have precise momentum at absorption. Here it is assumed that there exists a coordinate space in which plane wave states are defined (B3.1). Momentum at source is teleparallel to momentum at detection, and this determines a connection between the initial and final states. In classical general relativity there is no local meaning to expansion because length is defined locally, by an empirical procedure based on local matter. To talk about expansion we have to compare a length scale defined here and now, using here and now clocks and rulers, with a length scale defined at some time in the past. In practice we can do this by studying light from the past and analysing redshift provided that we know how light behaves. The definition of a teleconnection assumes that if momentum has a precise value at one place and time then it also has a precise value other places and times and is empirically justified in so far as observation yields precise values for cosmological redshift after allowing for dispersion due to dust or other known factors. This is a fundamental assumption in this model, of equal importance to the assumption of the constancy of the speed of light in special relativity. Like that assumption, if it were dropped we would be left, not with a different theory, but with no known consistent theory. Let Alf be an observer on a space craft or a distant planet, and let Beth be an observer on Earth, such that Alf can signal to Beth. At the time of emission of a photon passing from Alf to Beth, Alf defines synchronous, conformally flat, co-ordinates in 3 dimensions at constant cosmic time t. In a closed cosmos the universe can mapped onto a finite space, which will be called Alf's map. Beth defines Beth's map in exactly the same way, to the same scale, at the time of detection of the photon, cosmic time t0. For a closed universe in three dimensions Alf's and Beth's maps each consist of the interior of a sphere. Let a(t) be the scale factor and let a0=a(t). If the universe expands during the time of travel of the photon from Alf to Beth, then Beth's map is larger than Alf's map. Because the maps are conformally flat, they can be placed in direct correspondence by enlarging Alf's map by a factor a0/a(t). The teleconnection is defined such that photon momentum is represented by an arrow of equal length and direction on Beth's map and on Alf's enlarged map. Quantum coordinates define a four dimensional map found by considering all the times and positions where Alf and Beth might be, with the time axis scaled so that light is shown at 450. This is a Penrose diagram in each time-radial plane. In these coordinates the arrow representing photon momentum is of constant length and direction everywhere, so that plane wave motions obtain for light. Beth can compare the scale of her map to that of Alf's map by studying red shift. There are two scaling effects. First Alf's map has been enlarged by a factor a0/a(t). In addition, the scaling on the map changes as you move from one point to another. That gives another factor a0/a(t). Thus, the model predicts that the cosmological redshift factor varies with the square of the expansion parameter. 1+z=a0^2/a^2(t) 2.1 On Beth's map, Alf, and all physical objects in Alf's locality such as rulers, appear enlarged. This is torsion. In measurements in quantum mechanics there is both an initial and a final measurement and the coordinate system is scaled to the measuring apparatus at the time of each measurement. Rescaling coordinates removes torsion and renormalises momentum so that in the classical correspondence gravitational redshift is as in general relativity, as required by the principle of equivalence and for geodesic motion (appendix B4). 3 Cosmological Redshift Typically in quantum theory experiments require a measurement of the initial state and a measurement for the final state, and are such that reference matter used for the initial measurement is rigidly related to that used for the final one; either the same coordinate axes and clock are used in both measurements or the coordinate axes and clocks are calibrated to each other. As seen in section B4 this requires a renormalisation of energy momentum, such that geodesic motion and the principle of equivalence are restored. But in measurements on light from a distant object it is not possible to define a prior relationship between the reference matter used for the final measurement and the matter from which the photon is emitted. Light received at the origin has been transmitted from an event on the light cone, so that the only information we have about the initial state comes from measurement of the final state. There is then no renormalisation of energy-momentum, and cosmological redshift is given by 2.1. For small r 1+z = 1 + 2r adot/a 3.1 Thus coordinates in which radial distance from Earth is calculated from redshift exhibit a stretch of factor two in the radial direction. The time taken for a pulse of light to traverse a small angular distance dtheta is rdtheta, so that there is a stretch of factor half in the angular direction (this gives 4pi in a circle, which may cast light on fermion phase under rotation). Thus the coordinate metric, B3.2, in quantum coordinates is: ds^2 = a^2((dt^2 -dro^2)/4 - 4f(ro)(dtheta^2 + sin^2theta dphi^2). 3.2 [without the 4's this should be familiar as the metric in Penrose coords] Definition: Hubble's constant, H=2adot/a, is read from 3.1. It follows immediately that the rate of expansion of the universe is half that predicted by the standard model, the universe is twice as old as would be indicated by a linear law, and critical density for closure is a quarter of the standard value. There is no timescale problem for a closed universe with greater than critical density and zero cosmological constant. If observations at high red shift had revealed the expected activity of the early universe it would have falsified the square red shift law; in fact it receives support from the observation of mature galaxies at z=1.4 and greater (e.g. Mullis et al., 2005; Doherty et al 2005, and references cited therein). As described by Glazebrook (2004), there is poor agreement between current theoretical models of galaxy evolution and empirical data. To explain this it has been suggested (Cimatti et. al, 2004) that the theoretical models may be inaccurate. This model presents an alternative, that a square redshift law means we have to revise the ages of red galaxies. A value of Hubble's constant h=0.72 places an upper bound on the age of the universe of eighteen billion years, so that at redshift 6 the universe would have been about 4.5 billion years old. A detailed study is required to assess consistency between observation and theory, but this certainly appears to alleviate the difficulties. Hopefully future observation and analysis will be conclusive. 4 Cosmological Parameters The interpretation of redshift alters cosmological parameters but otherwise leave the classical equations of general relativity unchanged. Friedmann's equation is [as usual]. 4.1 Normalising so that W=1 is critical density we define W=..., W_R=... and W_L=..., 4.2 where k=-1,0,1 (quadruple the standard values, so that W=1 is critical density). Then Friedmann's equation, 4.1 is, adot/a = H0/2 (W(1+z)^3/2 + W_R(1+z) + W_L)^1/2 4.3 [standard form has redshift factors squared and no /2], requiring that W + W_R + W_L =1. [as standard] Definition: Let the deceleration parameter be q=-4a adotdot/aH^2 Differentiate Friedmann's equation to find the acceleration equation, [similarly similar to standard]. 4.4 Let H0=H(t0), a=a(t0) and q0=q(t0). From 4.2 and 4.4, q=W/2 -W_L 4.5 [standard] |
| Nov4-06, 03:23 PM | #2 |
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Thus spake Charles Francis <charles@CF.wanadoo.co.uk>
> > >4 Cosmological Parameters >The interpretation of redshift alters cosmological parameters but >otherwise leave the classical equations of general relativity unchanged. >Friedmann's equation is > > [as usual]. 4.1 > >Normalising so that W=1 is critical density we define > > W=..., W_R=... and W_L=..., 4.2 > >where k=-1,0,1 (quadruple the standard values, so that W=1 is critical >density). Then Friedmann's equation, 4.1 is, > > adot/a = H0/2 (W(1+z)^3/2 + W_R(1+z) + W_L)^1/2 4.3 > >[standard form has redshift factors squared and no /2], requiring that W >+ W_R + W_L =1. [as standard] > >Definition: Let the deceleration parameter be q=-4a adotdot/aH^2 > >Differentiate Friedmann's equation to find the acceleration equation, > > [similarly similar to standard]. 4.4 > >Let H0=H(t0), a=a(t0) and q0=q(t0). From 4.2 and 4.4, > > q=W/2 -W_L 4.5 > >[standard] > [continued] Angular size distance is calculated as in the standard theory, but rescaling of coordinates introduces a factor of a0/a(t)=sqrt(1+z), which adds 2.5log(1+z) to magnitude. To first order in z the magnitude- redshift relation (c.f. Misner Thorne Wheeler 1973, eq. 39.35b) becomes m-M ~ 5logz + 1.086(2-q)z 4.6 |
| Nov4-06, 03:23 PM | #3 |
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Thus spake Charles Francis <charles@CF.wanadoo.co.uk>
>For the first year data from The Supernova Legacy Survey, Astier >arXiv:astro-ph/0510447 he found: > >Standard model optimum Omega_m = 0.263, chi-square = 113.5679 (this is identical to the value of Omega_m given by Astier, confirming that Bob's program is now correct) >teleconnection model, optimum Omega_m = 1.06, chi-square = 115.2288 > I should say, this was for a flat space Lambda model. He has now also given the optimum value for a Lambda=0 model. Omega_m=1.11, with chi- square=114.89. In the teleconnection model I don't think the WMAP analysis can be used to assert flat space, because are wavefunctions are defined in conformally flat quantum coords, so this seems to me to be the most interesting model. Regards -- Charles Francis Please reply by name |
| Nov4-06, 03:23 PM | #4 |
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Supernova Redshift, et al
[Moderator's note: Charles, please contact me via email. -P.H.]
Thus spake Charles Francis <charles@CF.wanadoo.co.uk> >Thus spake Charles Francis <charles@CF.wanadoo.co.uk> >> >> >>4 Cosmological Parameters >>The interpretation of redshift alters cosmological parameters but >>otherwise leave the classical equations of general relativity unchanged. >>Friedmann's equation is >> >> [as usual]. 4.1 >> >>Normalising so that Wppppp1 is critical density we define >> >> Wppppp..., W_Rppppp... and W_Lppppp..., 4.2 >> >>where kppppp-1,0,1 (quadruple the standard values, so that Wppppp1 is critical >>density). Then Friedmann's equation, 4.1 is, >> >> adot/a ppppp H0/2 (W(1+z)^3/2 + W_R(1+z) + W_L)^1/2 4.3 >> >>[standard form has redshift factors squared and no /2], requiring that W >>+ W_R + W_L ppppp1. [as standard] >> >>Definition: Let the deceleration parameter be qppppp-4a adotdot/aH^2 >> >>Differentiate Friedmann's equation to find the acceleration equation, >> >> [similarly similar to standard]. 4.4 >> >>Let H0pppppH(t0), apppppa(t0) and q0pppppq(t0). From 4.2 and 4.4, >> >> qpppppW/2 -W_L 4.5 >> >>[standard] >> >[continued] >Angular size distance is calculated as in the standard theory, but >rescaling of coordinates introduces a factor of a0/a(t)pppppsqrt(1+z), which >adds 2.5log(1+z) to magnitude. To first order in z the magnitude- >redshift relation (c.f. Misner Thorne Wheeler 1973, eq. 39.35b) becomes > > m-M ~ 5logz + 1.086(2-q)z 4.6 > [I don't know why this has lost most of the post, but it's the second time it's happened, so here's hoping it will all come through this time] Then if qs is the deceleration parameter for the standard model q0~qs+1. For a flat space model, WpppppWs+2/3. If Lppppp0, Wppppp3Ws. In this case an estimate of the error may be made by combining the systematic and statistical errors given by Astier, and multiplying by 3. For critical density, Wppppp1, WLsppppp0, 4.6 is identical to first order, to the magnitude- redshift relation with Wsppppp0.33, WLsppppp0.67. The plot for this model has been superimposed in green on residual Hubble diagrams by adding 2.5log(1+z) to the standard plot (figures 1, 2, 3). These show that, for Z>0.4 the fit is closer to Wsppppp0.26, WLsppppp0.74, the best fit for the Supernova Legacy Survey first year data (Astier et al, 2005, figure 1), than it is to the Wsppppp0.35, WLsppppp0.65 model given by Filippenko (2004, figure 2). Using Matlab, Bob Day has run chi2 tests on the modified magnitude- redshift relation for the Riess (2004) and Astier (2005) data sets (figures 4, 5). For the Astier data he removed two outliers also removed by Astier, leaving 115 data points. The best fit for the flat space standard model has Wsppppp2.63 with chi^2ppppp113.5679, and for the teleconnection model Wppppp1.06, with chi^2ppppp115.2. For the Riess data he also removed outliers, leaving 154 data points. The best fit with the standard model was Wppppp30 and chi^2ppppp 174.1. The best fit with the teleconnection model was Wppppp1.15 with chi^2ppppp183. 5 Anomalous Pioneer Blue-shift For some years the Pioneer spacecraft have been sending back Doppler information interpreted as an anomalous acceleration toward the sun (Anderson et al., 2002). No accepted explanation has been given for the anomalous blue-shift, but if it were not observed it would be fatal to this model. It is here seen as an optical effect due to expansion; wave packets do not follow geodesics and there is disparity between the solution of a wave function projected back in time from a final measurement and the classical motion of a body. The disparity is removed when the wave function collapses and coordinates are rescaled, but it leads to an anomalous blue-shift in Doppler measurements of stellar objects and the model predicts blue-shift simulating constant acceleration toward the origin of coordinates, that is toward the observer on Earth. This is a quantum effect; consistent with NASA's findings, there is no corresponding classical acceleration and planetary motions are unaffected. A future test is planned which will determine whether the acceleration is toward the Sun, toward the Earth, in the direction of motion of the craft, or along the spin axis (Nieto et. al. 2004). If the direction is not toward the Earth the test will falsify this model. Anderson remarks that the anomalous Pioneer blue-shift is equivalent to an `acceleration in time' equal to the Hubble constant, but rejects acceleration in time because, using conventional physics, it is incompatible with ranging data. They elected to express their result in the form of an equivalent classical acceleration, a_pppppp8.74+-1.33x10^-8cms-2. A laboratory moving with respect to the cosmic fluid uses locally Minkowski coordinates, which can be transformed locally to comoving coordinates and extended globally to coordinates with metric 3.2. Then the time coordinate obeys B3.4, and exhibits acceleration with respect to proper time. The value of the acceleration in time is H0/2 but blue-shift is doubled in 3.1. So the resultant shift is the same. The equivalent acceleration, a_ppppppHc, is consistent with recent determinations of Hubble's constant. To gain an intuitive understanding of the Pioneer blue-shift consider a wave packet for a particle of zero momentum and at a distance r from an observer moving with the cosmic fluid at time t0, on a spacecraft in empty space where gravity can be ignored. The coordinate space displacement vector of the particle from the observer is a horizontal arrow of constant length. By 2.1, the scaling distortions in quantum coordinates are such that the actual displacement represented by the coordinate space displacement vector is greater at time t0 than it was at time tT0, by a factor a0^2/a^2. But the particle is also on a geodesic moving with the cosmic fluid. So its actual displacement is greater by a factor, a0/a. Then the motion of the wave packet and that of the particle diverge, and the wave packet accelerates toward the observer. Consistency is restored with the collapse of the wave function and rescaling of coordinates. There is no classical acceleration but the acceleration of the wave packet results in the anomalous blue-shift. 6 Flattening of Galaxies' Rotation Curves The Pioneer blue-shift is present in the observation of distant galaxies, and precisely accounts for flattening of galaxies' rotation curves consistent with MOND, the phenomenological law found by Milgrom (1994) which replaces the inverse square law of gravity with an inverse law for accelerations a<<a_M. A review of MOND is given by Sanders & McGough (2002). This is a second order effect, analogous to the gravitational effect of the moon which produces the tides. The second order pioneer effect is a Doppler shift equivalent to an inward acceleration toward the galactic center and is observed as an apparent modification to orbital velocity. The anomaly is an optical effect arising from the treatment of redshift, not a change to Newtonian dynamics (section 3.3) or evidence of cold dark matter haloes. The accelerations of galaxies in clusters are in the MONDian regime, and after revising the redshift-age relation; there is no immediate evidence that CDM is necessary for galaxy evolution. The MOND test is particularly important for several reasons. Firstly, data fits have been given for over 100 galaxies and thousands of stars, secondly, because cold dark matter does not give any explanation as to why the precisely same acceleration law should be found in galaxies of many sizes and types, thirdly, because there is no other empirical evidence for CDM haloes, fourthly because there is no satisfactory theory of CDM in particle physics, and finally because if galaxies' rotation curves did not obey MOND it would refute this as a `CDM' model. A star, S, in a galaxy with centre, G, is subject to an acceleration due to gravity toward G. Doppler shift due to orbital velocity is maximised when S is on a diameter perpendicular to the Earth. In addition there is an observed blue-shift equivalent to the Pioneer acceleration, g_rppppp-Hc, toward the Earth. For ease of calculation project the galaxy into the plane of its major axis and the Earth. Set up locally Minkowski coordinates with an origin at G, with the y-axis directed toward the Earth and with S on the x-axis at (x,0). The Pioneer blue-shift is equivalent to an acceleration which can be resolved into a part g_yppppp-g_r+O(x^2), and a part g_x toward G. g_x is independent of galactic mass and would appear in Minkowski coordinates with an origin anywhere in space. For a star on a diameter perpendicular to the Earth, the Doppler shift due to g_x is equivalent to an orbital velocity v_P measured relative to quantum coordinates, which are static with respect to the cosmic fluid. v_P is due to expansion and depends on the position of the star, but is independent of its velocity, so that Pioneer shift due to v_P is simply added to Doppler shift due to motion. Quantum coordinates with metric 3.2 are stretched in time by a factor of 2 and in the transverse direction by a factor of 1/2. So the blue-shift corresponding to expansion from G is subject to a factor of 1/4. Acceleration is the second time derivative of the transverse distance, and requires a factor of 8 in these coordinates. So we find a net factor of 32, giving a perceived acceleration, g_xppppp -H0c/32 +O(x^2). 6.1 If the corresponding Doppler shift is interpreted as being due to the motion of a body in orbit about G with orbital velocity then, to first order v_p^2/x ppppp H0c/32 or v_p ppppp sqrt(H0cx/32). 6.2 If the true orbital velocity of S due to gravity is vg then the observed orbital velocity is v ppppp v_g + v_P ppppp sqrt(GM/x) + sqrt(H0cx/32). 6.3 6.3 recognises that, since the alteration to redshift is an optical effect, it is correct to add velocities, not accelerations as would be the case for a dynamical law. Then the apparent acceleration toward G is v^2/x ppppp GM/x^2 + sqrt(GMH0cx/8)/x + H0c/32. 6.4 The first term on the right hand side of 6.4 is acceleration due to gravity. The last is simply the component of Pioneer acceleration toward G, given by 6.1, and appears also in the absence of a source of gravity. This leaves an apparent acceleration equivalent to a Doppler shift due to velocity, v^2 ppppp sqrt(GMH0c/8), 6.5 in precise agreement with MOND, the phenomenological law proposed by Milgrom (1994) which retains Newton's square law for accelerations xdotdot>>a_M for some constant a_M, but replaces it with xdotdot ppppp sqrt(GMa_M) for xdotdot << a_M and gives a good match with data. Thus a_MpppppH0c/8 and the best fit value of a_M from observations on over a thousand stars is 1x10^-8cm s-2, consistent with the emerging value of Hubble's constant and with the value of Hc given by Pioneer. 7 Big Bang Nucleosynthesis and CBR The square law applies when all the information about the initial state is contained in the detected light, as in the observation of astronomical bodies. The cosmological microwave background defines the reference frame in which photons are emitted. This scales coordinates at the time of the production of CMB photons and the usual linear red shift law applies. The analyses of big bang nucleosynthesis and of decoupling are unaltered, but the density of baryonic matter becomes 0.064<pppppW_Bh^2<ppppp0.096 after normalising Wcr to 1 (4.2). Thus baryonic matter forms 10-20% of critical mass, and at an extreme, the ratio of non-baryonic to baryonic matter need only be 4:1 for closure, within the range of values which might be accounted for by a massive neutrino. The concordance model is supported by the integrated Sachs-Wolfe effect (Afshordi, Loh & Strauss; 2004; Boughn & Crittendon, 2004; Fosalba et al., 2003; Nolta et al., 2004; Scranton et al., 2004) using evidence from the Two-Degree Field Galaxy Redshift Survey (2dFGRS; Peacock et al. 2001; Percival et al., 2001; Efstathiou, 2002), and from the Wilkinson Microwave Anisotropy Probe (WMAP; Spergal, 2003, and references cited therein). In practice these measurements determine cosmological parameters rather than test consistency, and they depend on the distance-redshift relation. Acceleration depends only on distance and time, so that, if the standard model is consistent, a change in the distance-redshift relation can be expected to give a consistent change in the deceleration parameter in different tests. It is to be expected that corresponds to in the teleconnection model whether it is determined from Supernova or from WMAP and 2dGFS. The first order analysis of WMAP appears unchanged in the teleconnection model, as we expect isotropy and a gaussian random distribution. However Spergal comments on discrepancies in the WMAP data on both the largest and smallest scales, and Copi et al (2005) report on unexplained alignments in the data. It is not presently possible to say whether these are caused by higher order corrections in the analysis of data; for example it may be necessary to take account of pioneer blue-shift when removing foreground contamination. Appendix A: Hubble Diagrams for Type Ia Supernovae Appendix B: Mathematical Description of the Teleconnection Regards -- Charles Francis Please reply by name |
| Nov4-06, 03:23 PM | #5 |
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[Moderator's note: Charles, please contact me via email. -P.H.]
Thus spake Charles Francis <charles@CF.wanadoo.co.uk> >Thus spake Charles Francis <charles@CF.wanadoo.co.uk> >> >> >>4 Cosmological Parameters >>The interpretation of redshift alters cosmological parameters but >>otherwise leave the classical equations of general relativity unchanged. >>Friedmann's equation is >> >> [as usual]. 4.1 >> >>Normalising so that W=1 is critical density we define >> >> W=..., W_R=... and W_L=..., 4.2 >> >>where k=-1,0,1 (quadruple the standard values, so that W=1 is critical >>density). Then Friedmann's equation, 4.1 is, >> >> adot/a = H0/2 (W(1+z)^3/2 + W_R(1+z) + W_L)^1/2 4.3 >> >>[standard form has redshift factors squared and no /2], requiring that W >>+ W_R + W_L =1. [as standard] >> >>Definition: Let the deceleration parameter be q=-4a adotdot/aH^2 >> >>Differentiate Friedmann's equation to find the acceleration equation, >> >> [similarly similar to standard]. 4.4 >> >>Let H0=H(t0), a=a(t0) and q0=q(t0). From 4.2 and 4.4, >> >> q=W/2 -W_L 4.5 >> >>[standard] >> >[continued] >Angular size distance is calculated as in the standard theory, but >rescaling of coordinates introduces a factor of a0/a(t)=sqrt(1+z), which >adds 2.5log(1+z) to magnitude. To first order in z the magnitude- >redshift relation (c.f. Misner Thorne Wheeler 1973, eq. 39.35b) becomes > > m-M ~ 5logz + 1.086(2-q)z 4.6 > [I don't know why this has lost most of the post, but it's the second time it's happened, so here's hoping it will all come through this time] Then if qs is the deceleration parameter for the standard model q0~qs+1. For a flat space model, W=Ws+2/3. If L=0, W=3Ws. In this case an estimate of the error may be made by combining the systematic and statistical errors given by Astier, and multiplying by 3. For critical density, W=1, WLs=0, 4.6 is identical to first order, to the magnitude- redshift relation with Ws=0.33, WLs=0.67. The plot for this model has been superimposed in green on residual Hubble diagrams by adding 2.5log(1+z) to the standard plot (figures 1, 2, 3). These show that, for Z>0.4 the fit is closer to Ws=0.26, WLs=0.74, the best fit for the Supernova Legacy Survey first year data (Astier et al, 2005, figure 1), than it is to the Ws=0.35, WLs=0.65 model given by Filippenko (2004, figure 2). Using Matlab, Bob Day has run chi2 tests on the modified magnitude- redshift relation for the Riess (2004) and Astier (2005) data sets (figures 4, 5). For the Astier data he removed two outliers also removed by Astier, leaving 115 data points. The best fit for the flat space standard model has Ws=2.63 with chi^2=113.5679, and for the teleconnection model W=1.06, with chi^2=115.2. For the Riess data he also removed outliers, leaving 154 data points. The best fit with the standard model was W=30 and chi^2= 174.1. The best fit with the teleconnection model was W=1.15 with chi^2=183. 5 Anomalous Pioneer Blue-shift For some years the Pioneer spacecraft have been sending back Doppler information interpreted as an anomalous acceleration toward the sun (Anderson et al., 2002). No accepted explanation has been given for the anomalous blue-shift, but if it were not observed it would be fatal to this model. It is here seen as an optical effect due to expansion; wave packets do not follow geodesics and there is disparity between the solution of a wave function projected back in time from a final measurement and the classical motion of a body. The disparity is removed when the wave function collapses and coordinates are rescaled, but it leads to an anomalous blue-shift in Doppler measurements of stellar objects and the model predicts blue-shift simulating constant acceleration toward the origin of coordinates, that is toward the observer on Earth. This is a quantum effect; consistent with NASA's findings, there is no corresponding classical acceleration and planetary motions are unaffected. A future test is planned which will determine whether the acceleration is toward the Sun, toward the Earth, in the direction of motion of the craft, or along the spin axis (Nieto et. al. 2004). If the direction is not toward the Earth the test will falsify this model. Anderson remarks that the anomalous Pioneer blue-shift is equivalent to an `acceleration in time' equal to the Hubble constant, but rejects acceleration in time because, using conventional physics, it is incompatible with ranging data. They elected to express their result in the form of an equivalent classical acceleration, a_=p8.74+-1.33x10^-8cms-2. A laboratory moving with respect to the cosmic fluid uses locally Minkowski coordinates, which can be transformed locally to comoving coordinates and extended globally to coordinates with metric 3.2. Then the time coordinate obeys B3.4, and exhibits acceleration with respect to proper time. The value of the acceleration in time is H0/2 but blue-shift is doubled in 3.1. So the resultant shift is the same. The equivalent acceleration, a_=pHc, is consistent with recent determinations of Hubble's constant. To gain an intuitive understanding of the Pioneer blue-shift consider a wave packet for a particle of zero momentum and at a distance r from an observer moving with the cosmic fluid at time t0, on a spacecraft in empty space where gravity can be ignored. The coordinate space displacement vector of the particle from the observer is a horizontal arrow of constant length. By 2.1, the scaling distortions in quantum coordinates are such that the actual displacement represented by the coordinate space displacement vector is greater at time t0 than it was at time tT0, by a factor a0^2/a^2. But the particle is also on a geodesic moving with the cosmic fluid. So its actual displacement is greater by a factor, a0/a. Then the motion of the wave packet and that of the particle diverge, and the wave packet accelerates toward the observer. Consistency is restored with the collapse of the wave function and rescaling of coordinates. There is no classical acceleration but the acceleration of the wave packet results in the anomalous blue-shift. 6 Flattening of Galaxies' Rotation Curves The Pioneer blue-shift is present in the observation of distant galaxies, and precisely accounts for flattening of galaxies' rotation curves consistent with MOND, the phenomenological law found by Milgrom (1994) which replaces the inverse square law of gravity with an inverse law for accelerations a<<a_M. A review of MOND is given by Sanders & McGough (2002). This is a second order effect, analogous to the gravitational effect of the moon which produces the tides. The second order pioneer effect is a Doppler shift equivalent to an inward acceleration toward the galactic center and is observed as an apparent modification to orbital velocity. The anomaly is an optical effect arising from the treatment of redshift, not a change to Newtonian dynamics (section 3.3) or evidence of cold dark matter haloes. The accelerations of galaxies in clusters are in the MONDian regime, and after revising the redshift-age relation; there is no immediate evidence that CDM is necessary for galaxy evolution. The MOND test is particularly important for several reasons. Firstly, data fits have been given for over 100 galaxies and thousands of stars, secondly, because cold dark matter does not give any explanation as to why the precisely same acceleration law should be found in galaxies of many sizes and types, thirdly, because there is no other empirical evidence for CDM haloes, fourthly because there is no satisfactory theory of CDM in particle physics, and finally because if galaxies' rotation curves did not obey MOND it would refute this as a `CDM' model. A star, S, in a galaxy with centre, G, is subject to an acceleration due to gravity toward G. Doppler shift due to orbital velocity is maximised when S is on a diameter perpendicular to the Earth. In addition there is an observed blue-shift equivalent to the Pioneer acceleration, g_r=-Hc, toward the Earth. For ease of calculation project the galaxy into the plane of its major axis and the Earth. Set up locally Minkowski coordinates with an origin at G, with the y-axis directed toward the Earth and with S on the x-axis at (x,0). The Pioneer blue-shift is equivalent to an acceleration which can be resolved into a part g_y=-g_r+O(x^2), and a part g_x toward G. g_x is independent of galactic mass and would appear in Minkowski coordinates with an origin anywhere in space. For a star on a diameter perpendicular to the Earth, the Doppler shift due to g_x is equivalent to an orbital velocity v_P measured relative to quantum coordinates, which are static with respect to the cosmic fluid. v_P is due to expansion and depends on the position of the star, but is independent of its velocity, so that Pioneer shift due to v_P is simply added to Doppler shift due to motion. Quantum coordinates with metric 3.2 are stretched in time by a factor of 2 and in the transverse direction by a factor of 1/2. So the blue-shift corresponding to expansion from G is subject to a factor of 1/4. Acceleration is the second time derivative of the transverse distance, and requires a factor of 8 in these coordinates. So we find a net factor of 32, giving a perceived acceleration, g_x= -H0c/32 +O(x^2). 6.1 If the corresponding Doppler shift is interpreted as being due to the motion of a body in orbit about G with orbital velocity then, to first order v_p^2/x = H0c/32 or v_p = sqrt(H0cx/32). 6.2 If the true orbital velocity of S due to gravity is vg then the observed orbital velocity is v = v_g + v_P = sqrt(GM/x) + sqrt(H0cx/32). 6.3 6.3 recognises that, since the alteration to redshift is an optical effect, it is correct to add velocities, not accelerations as would be the case for a dynamical law. Then the apparent acceleration toward G is v^2/x = GM/x^2 + sqrt(GMH0cx/8)/x + H0c/32. 6.4 The first term on the right hand side of 6.4 is acceleration due to gravity. The last is simply the component of Pioneer acceleration toward G, given by 6.1, and appears also in the absence of a source of gravity. This leaves an apparent acceleration equivalent to a Doppler shift due to velocity, v^2 = sqrt(GMH0c/8), 6.5 in precise agreement with MOND, the phenomenological law proposed by Milgrom (1994) which retains Newton's square law for accelerations xdotdot>>a_M for some constant a_M, but replaces it with xdotdot = sqrt(GMa_M) for xdotdot << a_M and gives a good match with data. Thus a_M=H0c/8 and the best fit value of a_M from observations on over a thousand stars is 1x10^-8cm s-2, consistent with the emerging value of Hubble's constant and with the value of Hc given by Pioneer. 7 Big Bang Nucleosynthesis and CBR The square law applies when all the information about the initial state is contained in the detected light, as in the observation of astronomical bodies. The cosmological microwave background defines the reference frame in which photons are emitted. This scales coordinates at the time of the production of CMB photons and the usual linear red shift law applies. The analyses of big bang nucleosynthesis and of decoupling are unaltered, but the density of baryonic matter becomes 0.064<=W_Bh^2<=0.096 after normalising Wcr to 1 (4.2). Thus baryonic matter forms 10-20% of critical mass, and at an extreme, the ratio of non-baryonic to baryonic matter need only be 4:1 for closure, within the range of values which might be accounted for by a massive neutrino. The concordance model is supported by the integrated Sachs-Wolfe effect (Afshordi, Loh & Strauss; 2004; Boughn & Crittendon, 2004; Fosalba et al., 2003; Nolta et al., 2004; Scranton et al., 2004) using evidence from the Two-Degree Field Galaxy Redshift Survey (2dFGRS; Peacock et al. 2001; Percival et al., 2001; Efstathiou, 2002), and from the Wilkinson Microwave Anisotropy Probe (WMAP; Spergal, 2003, and references cited therein). In practice these measurements determine cosmological parameters rather than test consistency, and they depend on the distance-redshift relation. Acceleration depends only on distance and time, so that, if the standard model is consistent, a change in the distance-redshift relation can be expected to give a consistent change in the deceleration parameter in different tests. It is to be expected that corresponds to in the teleconnection model whether it is determined from Supernova or from WMAP and 2dGFS. The first order analysis of WMAP appears unchanged in the teleconnection model, as we expect isotropy and a gaussian random distribution. However Spergal comments on discrepancies in the WMAP data on both the largest and smallest scales, and Copi et al (2005) report on unexplained alignments in the data. It is not presently possible to say whether these are caused by higher order corrections in the analysis of data; for example it may be necessary to take account of pioneer blue-shift when removing foreground contamination. Appendix A: Hubble Diagrams for Type Ia Supernovae Appendix B: Mathematical Description of the Teleconnection Regards -- Charles Francis Please reply by name |
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