New survey casts doubt on supernova evidence for Dark Energy

Newsgroups	sci.physics, sci.astro
From	Yousuf Khan <bbbl67@spammenot.yahoo.com>
Subject	New survey casts doubt on supernova evidence for Dark Energy
Date	2016-10-24 07:34 -0400
Message-ID	<_fydnTK-RshBbJDFnZ2dnUU7-bvNnZ2d@giganews.com> (permalink)

Cross-posted to 2 groups.

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> Now, a team of scientists led by Professor Subir Sarkar of Oxford University’s Department of Physics has cast doubt on this standard cosmological concept. Making use of a vastly increased data set — a catalogue of 740 Type Ia supernovae, more than ten times the original sample size — the researchers have found that the evidence for acceleration may be flimsier than previously thought, with the data being consistent with a constant rate of expansion.
>
> “However, there now exists a much bigger database of supernovae on which to perform rigorous and detailed statistical analyses. We analysed the latest catalogue of 740 Type Ia supernovae — over ten times bigger than the original samples on which the discovery claim was based — and found that the evidence for accelerated expansion is, at most, what physicists call ‘3 sigma’. This is far short of the 5 sigma standard required to claim a discovery of fundamental significance.

https://astronomynow.com/2016/10/21/the-universe-is-expanding-at-an-accelerating-rate-or-is-it/

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New survey casts doubt on supernova evidence for Dark Energy Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-10-24 07:34 -0400
  Re: New survey casts doubt on supernova evidence for Dark Energy edprochak@gmail.com - 2016-10-24 07:15 -0700
    Re: New survey casts doubt on supernova evidence for Dark Energy Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-10-24 18:28 -0400
  Re: New survey casts doubt on supernova evidence for Dark Energy willner@cfa.harvard.edu (Steve Willner) - 2016-10-28 16:54 +0000
    Re: New survey casts doubt on supernova evidence for Dark Energy Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-10-28 14:18 -0400
      Re: New survey casts doubt on supernova evidence for Dark Energy willner@cfa.harvard.edu (Steve Willner) - 2016-10-28 22:08 +0000
        Re: New survey casts doubt on supernova evidence for Dark Energy Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-11-02 07:36 -0400
          Re: New survey casts doubt on supernova evidence for Dark Energy edprochak@gmail.com - 2016-11-02 11:12 -0700
          Re: New survey casts doubt on supernova evidence for Dark Energy willner@cfa.harvard.edu (Steve Willner) - 2016-11-02 18:13 +0000
            Re: New survey casts doubt on supernova evidence for Dark Energy noTthaTguY <abu.kuanysh05@gmail.com> - 2016-11-02 17:36 -0700
            Re: New survey casts doubt on supernova evidence for Dark Energy Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-11-03 09:41 -0400
              Re: New survey casts doubt on supernova evidence for Dark Energy edprochak@gmail.com - 2016-11-03 10:12 -0700
              Re: New survey casts doubt on supernova evidence for Dark Energy willner@cfa.harvard.edu (Steve Willner) - 2016-11-07 22:43 +0000
                Re: New survey casts doubt on supernova evidence for Dark Energy Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2016-11-07 18:58 -0500
  Re: New survey casts doubt on supernova evidence for Dark Energy "reber g=emc^2" <herbertglazier0@gmail.com> - 2016-11-04 11:10 -0700
    Re: New survey casts doubt on supernova evidence for Dark Energy "hanson" <hanson@quick.net> - 2016-11-04 11:36 -0700

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