Quantifying the evidence for the current speed-up of the Universe with low and intermediate-redshift data. A more model-independent approach
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2019/05/026
Abstract: We reconstruct in this paper the deceleration and jerk parameters as functions of the cosmological redshift from data on cosmic chronometers (CCH), baryon acoustic oscillations (BAOs), and the Pantheon+MCT compilation of supernovae of Type Ia… read more here.
Keywords: universe; evidence; model; redshift data ... See more keywords
Measuring the sound horizon and absolute magnitude of SNIa by maximizing the consistency between low-redshift data sets
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.043528
Abstract: The comoving sound horizon at the baryon drag epoch, rd, encapsulates very important physical information about the pre-recombination era and serves as a cosmic standard ruler. On the other hand, the absolute magnitude of supernovae… read more here.
Keywords: absolute magnitude; snia; sound horizon; low redshift ... See more keywords