2016/10/17 by Antonio Feoli, Elmo Benedetto · 8 citations
Physics and Astronomy · #Acceleration #Black Holes and Theoretical Physics #COSMIC cancer database #Constant (computer programming) #Context (archaeology) #Cosmology and Gravitation Theories #Dark energy #Friedmann–Lemaître–Robertson–Walker metric #Observer (physics) #Redshift #Relativity and Gravitational Theory #gr-qc
paper · pdf · doi:10.1134/s0202289317030045
published in Gravitation and Cosmology 23(3), 240-244 (Pleiades Publishing)
arxiv created 2016/10/17 · openalex created_date 2016/10/28 · openalex publication_date 2017/07/01 · arxiv updated 2017/08/29 · openalex updated_date 2026/08/05
We find that an observer with a suitable acceleration relative to the frame comoving with the cosmic fluid, in the context of the FRW decelerating universe, measures the same cosmological redshift as in the ΛCDM model. The estimated value of this acceleration is β ≃ 1.4 × 10 −9 m/s 2 . We discuss two different scenarios, a motion with constant acceleration and a helical motion (although other alternatives are also likely), and we show that the final value of the peculiar velocity is sensitive to the type of the peculiar motion.