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Power-law cosmology, SN Ia, and BAO
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Power-law cosmology, SN Ia, and BAO
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We revise observational constraints on the class of models of modified gravity which at low redshifts lead to a power-law cosmology. To this end we use available public data on Supernova Ia and on baryon acoustic oscillations. We show that the expansion regime $a(t) \sim t^{\beta}$ with $\beta$ close to 3/2 a spatially flat universe is a good fit to these data.
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Cited by 1 Pith paper
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An intrinsic kinematic relation $\boldsymbol{c=\frac{c_{0}}{H_{0}}\,\dot{a}}\,$ inferred from Type Ia supernovae
The Pantheon supernova fit in a Dolgov–Barrow varying-speed-of-light cosmology favors the locus (1+ζ)μ=1, interpreted as c∝da/dt.
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