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Practical cosmology and cosmology physics

  1. Sep 8, 2008 #1

    wolram

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    arXiv:0809.1084 [pdf]
    Title: Practical cosmology and cosmological physics
    Authors: Yu. Baryshev (1), I. Taganov (2), P. Teerikorpi (3) ((1)Astron. Inst. St.-Petersburg Univ., (2)Russ. Geograph. Soc., (3)Tuorla Obs. Turku Univ.)
    Comments: 16 pages, summary of the conference "Problems of Practical Cosmology", June 2008, St.-Petersburg, Russia, full texts of all reports see this http URL
    Subjects: Astrophysics (astro-ph); General Relativity and Quantum Cosmology (gr-qc)

    We present a summary of the International conference "Problems of practical cosmology", held at Russian Geographical Society, 23-27 June 2008, St.-Petersburg, Russia, where original reports were offered for discussion of new developments in modern cosmological physics, including the large scale structure of the Universe, the evolution of galaxies, cosmological effects in the local stellar systems, gravity physics for cosmology, cosmological models, and crucial observational tests of rival world models. The term "Practical Cosmology" was introduced by Allan Sandage in 1995 when he formulated "23 astronomical problems for the next three decades" at the conference on "Key Problems in Astronomy and Astrophysics" held at Canary Islands. Now when the first decade has passed, we can summarise the present situation in cosmological physics emphasizing interesting hot problems that have arisen during the last decade. Full texts of all reports are available at the website of the conference.

    http://eprintweb.org/S/article/astro-ph/0809.1084
     
  2. jcsd
  3. Sep 8, 2008 #2

    jal

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  4. Sep 8, 2008 #3

    wolram

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    Sun glasses and headphone time.
     
  5. Sep 8, 2008 #4
    Hi Wolram,
    Thanks for the reference.

    I recommend reading Y.V. Baryshev's paper in Session V, "Expanding Space: the root of conceptual problems of the cosmological physics." It provides a nice, succinct overview of a few important conceptual issues with the Friedmann standard model: violation of energy conservation in expanding space, the nature of cosmological redshift, and the Hubble-deVaucouleurs paradox.

    Jon
     
  6. Sep 8, 2008 #5

    jal

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    Don't be so hard on the learning process ...
    Cosmology is an extrapolation of experimental evidence.
    New evidence ...
    Energy Budget distribution
    1. Looking at how the energy budget of the universe used to be calculated.
    2. Trying to see if those same assumptions would still work with the discovery of dark energy and dark matter.

    However, as we speak, the condensed matter community is sending out another challenge.
    Can those assumption still be valid if you started out from a de-confined perfect liquid of quark gluon with no mass, no gravity, no electrons no photons, no EMF.
    I guess that we would first have to figure out how these attributes became emergent.
    =======
     
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