SETI public: The Fate of the Accelerating Universe

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From: LARRY KLAES (ljk4_at_msn.com)
Date: Tue Dec 06 2005 - 11:11:24 PST

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    Paper: astro-ph/0106387
    replaced with revised version Sat, 3 Dec 2005 17:23:28 GMT (248kb)

    Title: The Fate of the Accelerating Universe

    Authors: Je-An Gu, W-Y. P. Hwang

    Comments: 16 pages, 5 figures, LaTeX

    The presently accelerating universe may keep accelerating forever,
    eventually run into the event horizon problem, and thus be in conflict with
    the superstring idea. In the other way around, the current accelerating
    phase as well as the fate of the universe may be swayed by a negative
    cosmological constant, which dictates a big crunch. Based on the current
    observational data, in this paper we investigate how large the magnitude of
    a negative cosmological constant is allowed to be. In addition, for
    distinguishing the sign of the cosmological constant via observations, we
    point out that a measure of the evolution of the dark energy equation of
    state may be a good discriminator. Hopefully future observations will
    provide much more detailed information about dark energy and thereby
    indicates the sign of the cosmological constant as well as the fate of the
    presently accelerating universe.

    \\ ( http://arXiv.org/abs/astro-ph/0106387 , 248kb)

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