2018/03/11 by Yves‐Henri Sanejouand, Yves-Henri Sanejouand, Sanejouand, Yves-Henri
Computer Science · Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics #Computational Physics and Python Applications #Computer science #Constant (computer programming) #Cosmology #Cosmology and Gravitation Theories #Dark matter #FOS: Physical sciences #Galaxy #Gamma-ray bursts and supernovae #General Physics (physics.gen-ph) #Geology #Hubble's law #Particle (ecology) #Photon #Physics #Pulsars and Gravitational Waves Research #Quantum mechanics #Redshift #physics.gen-ph
paper · pdf · doi:10.48550/arxiv.1803.05303
5 pages, 1 figure
arxiv created 2018/03/11 · openalex publication_date 2018/03/11 · arxiv updated 2018/03/15 · openalex created_date 2022/08/31 · openalex updated_date 2026/08/06
A generic tired-light mechanism is examined in which a photon, like any\nparticle moving in a medium, experiences friction, that is, a force resisting\nits motion. If the velocity of light is assumed to be constant, this hypothesis\nyields a Hubble-like law which is also a consequence of the Rh = ct cosmology.\nHerein, it is used for estimating matter density as a function of redshift,\nallowing to show that the density of sources of long gamma-ray bursts appears\nto be nearly constant, up to z \≈ 4. Assuming that the later is a fair\nprobe of the former, this means that matter density has been roughly constant\nover the last ten billion years, implying that, at least over this period,\nmatter has been in an overall state of equilibrium.\n