New $H(z)$ measurement at Redshift = 0.12 with DESI Data Release 1

Abstract

The Hubble parameter ($H(z)$) is a function of the redshift and a reliable measurement is very important to understand the expansion history of the Universe. In this work, we perform full-spectrum fitting using BAGPIPES on more than four thousand massive, passively evolving galaxies released by the DESI collaboration to estimate their cosmological-independent stellar ages and star-formation histories, and derive a new measurement of $H(z=0.12)=71.33\pm 4.20\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$, which is well consistent with those derived in other ways.

21 pages, 10 figures, accepted for publication in ApJ

References in corpus (1)

• Stringent constraint on the CCC+TL cosmology with $H(z)$ Measurements

Cited by in corpus (1)

• Constraints on the gravitational potential from DESI DR2 BAO and its implications for the local void scenario