Spatial curvature at the sound horizon
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2020/02/034
Abstract: The effect of spatial curvature on primordial perturbations is controlled by $ \Omega_{K,0}/c_{s}^{2} $, where $ \Omega_{K,0} $ is today's fractional density of spatial curvature and $ c_{s} $ is the speed of sound during… read more here.
Keywords: spatial curvature; curvature sound; inflation; sound horizon ... 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