- #91
Nereid
Staff Emeritus
Science Advisor
Gold Member
- 3,392
- 3
First of all Sundance, I'd appreciate it if you quote me correctly.Sundance said:
Let's follow the sequence, leaving out the [ QUOTE ] tags.
In https://www.physicsforums.com/showpost.php?p=2027652&postcount=80", Suede wrote (this is the entire post, minus the link in the first line):
= = = = = = = = = = Suede, post #80 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Arp's theory:
Quasars are proto-galaxies ejected from parent galaxies.
Redshift of quasars is a function of galactic aging.
Younger quasars have high redshifts, as they mature after ejection, they become lower redshift.hmmm... seems to fit with the data at a lot of levels no?
I'm sure we could poke holes in it, but its certainly interesting to note the problems in the data such a theory would solve.
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
My post #84 followed, and quoted Suede's (#80) in full (I have left it out here):
= = = = = = = = = = Nereid, post #84 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
[Suede's post#80]
Arp's ideas on quasars can be left to enjoy their well-deserved, and well-earned, retirement, in the pages of the book Ideas In Astronomy That Didn't Pan Out.
In its simplest, highly summarised, form: quasars are AGNs, just as Seyfert 1s, blazars, type 2 quasars, etc, etc, etc are. They are a homogeneous class of astronomical object. Their observed redshifts are reliable indicators of their distance (in time and space), not least because dozens of (strongly) lensed quasars have been found.
Of the order of half the Strauss video, and accompanying powerpoint slides, that turbo-1 introduces in this thread, is taken up with presentation of (then) recent observational results that strengthen "The canonical modern picture of active galaxy structure" (to quote the title of slide 70). In addition, in the video Strauss talks about the Gunn-Peterson trough and how the signature of the end of the Dark Ages can be seen in the spectra of high-z quasars (just as predicted over 35 years ago, from standard cosmological models).
Oh, and as a side note, Arp's ideas on quasars must surely count as spectacular failures when subject to the Suede 'laboratory proof' test!
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
Suede replied, in https://www.physicsforums.com/showpost.php?p=2028094&postcount=87", and quoted just one line of my post #84. He edited this at least once, and my reply (post#88, see below) - which quoted his #87 post - did not include the parts he added subsequently. Here is post #87, up to the phrase "btw,":
= = = = = = = = = = Suede, post #87 (part only) = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
[from Nereid's post#84: Oh, and as a side note, Arp's ideas on quasars must surely count as spectacular failures when subject to the Suede 'laboratory proof' test!
]Plasmoid ejection from current pinches is a well known laboratory proven phenomina.
btw,
[rest of Suede's post #87 omitted]
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
My https://www.physicsforums.com/showpost.php?p=2028121&postcount=88" followed. It contains two parts, and quotes Suede's post#87 in full. I shall reproduce only the first part, since it is the only part germane to my reconstruction. The embedded quote is reconstructed sequentially; the relevant footnote is moved up.
= = = = = = = = = = Nereid, post #88 (part only) = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
[from Nereid's post#84: Oh, and as a side note, Arp's ideas on quasars must surely count as spectacular failures when subject to the Suede 'laboratory proof' test! ]
[from Suede's post#87: Plasmoid ejection from current pinches is a well known laboratory proven phenomina.]
In which the following have been 'proven'*:
- the creation of mass?
- atoms, nuclei, and electrons whose mass decreases with time?
- violation of conservation of momentum, energy, and angular momentum?
- violation of at least two of the laws of thermodynamics?
Not to mention that no lab has ever performed a controlled experiment on an object of mass 10^6 (or more) sols, in a volume of 1 kpc^3 (or more).
Suede, this is beyond absurd.
* these are all core aspects of Arp's idea
[rest of Nereid's post #88 omitted]
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
I think it's pretty clear that what I meant by 'beyond absurd' is that Suede's presentation of Arp's ideas in post#80 is beyond absurd when tested using Suede's own 'laboratory proof' criteria.
At no point did I say that the 2005 Galianni et al. paper was absurd. If you have somehow read that into what I wrote, then I trust that this post corrects your misunderstanding; if it does not, please do me the courtesy of saying so, and asking for further clarification.
I do not wish to have this thread derailed by a discussion of the Arp-Narlikar variable mass hypothesis, nor by a discussion of papers reporting apparent relationships between high-z objects and low-z galaxies, etc. If a PF mentor considers either discussion to be within PF's guidelines, let's have a separate thread on each.
In any case, I shall not post any further, in this thread, on papers that present non-mainstream theories or ideas, and/or which are not part of current professional mainstream scientific discussion.
Finally, it would seem that you, Sundance, may not be aware of just how enormous and compelling the published papers on quasars are, and the vast quantity of high quality observations on which the contemporary 'unified AGN model' is built (I gave a short para summary in post#84). If you'd like to explore that more, I'd be happy to help you ... why not start a new thread on it?
Last edited by a moderator: