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A molecular probe o...
A molecular probe of dark energy
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- Thompson, Rodger I. (författare)
- University of Arizona
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- Bechtold, Jill (författare)
- University of Arizona
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- Eisenstein, Daniel (författare)
- University of Arizona
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- Fan, Xiaohui (författare)
- University of Arizona
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- Arnett, David (författare)
- University of Arizona
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- Martins, Carlos (författare)
- University Of Cambridge,Universidade do Porto,University of Porto
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- Kennicutt, R.C. (författare)
- University Of Cambridge
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- Black, John H, 1949 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2008
- 2008
- Engelska.
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Ingår i: Advances in Space Research. - : Elsevier BV. - 1879-1948 .- 0273-1177. ; 42:3, s. 596-598
- Relaterad länk:
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Many theoretical models of dark energy invoke rolling scaler fields which in turn predict time varying values of the fundamental constants. Establishing the value of the fundamental constants at various times in the universe can probe and test the various dark energy theories. One of the constants that is predicted to vary is the ratio of the electron to proton mass μ. It was established early on that molecular spectra are sensitive to the value of μ and can be used as probes of that value. This article describes the use of the spectrum of molecular hydrogen in high redshift Damped Lyman Alpha systems (DLAs) as a sensitive probe of the time evolution of μ.
Ämnesord
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Nyckelord
- quasars
- dark energy
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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