Constraining a possible variation of G with Type Ia supernovae — mentioned by greglindahl

Fri, 29 Jul 2016 22:55:37 GMT

The Chandrasekhar mass depends on G and a bunch of fundamental constants, and that's the mass of a type Ia supernova. Unfortunately this Wikipedia article doesn't talk about astronomy much: https://en.wikipedia.org/wiki/Gravitational_constant#History... But it does point at one measurement of G on cosmological timescales and distances from 2006: https://arxiv.org/abs/1402.1534 There are other papers with similar measurements published in the past two decades.

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Constraining a possible variation of G with Type Ia supernovae — mentioned by greglindahl

Mon, 21 Mar 2016 06:36:13 GMT

Note this text from Wikipedia: "Under the assumption that the physics of type Ia supernovae are universal, analysis of observations of 580 type Ia supernovae has shown that the gravitational constant has varied by less than one part in ten billion per year over the last nine billion years.[13]" The ref is: J. Mould; S. A. Uddin (2014-04-10), "Constraining a Possible Variation of G with Type Ia Supernovae", Publications of the Astronomical Society of Australia 31: e015, arXiv:1402.1534, Bibcode:2014PASA...31...15M, doi:10.1017/pasa.2014.9 It's not the first paper to look into that issue…

Paper and discussion history. A mention is not an endorsement.

Constraining a possible variation of G with Type Ia supernovae · HackerPapers discussions

Constraining a possible variation of G with Type Ia supernovae — mentioned by greglindahl

Constraining a possible variation of G with Type Ia supernovae — mentioned by greglindahl