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New H(z) Measurement at Redshift=0.12 with DESI Data Release 1
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DOI：10.3847/1538-4357/ae610a.png)
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Abstract
En 中文
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 +/- 4.20 km s-1 Mpc-1, which is well consistent with those derived in other ways.
Keywords:
STELLAR POPULATION SYNTHESIS
MASSIVE QUIESCENT GALAXIES
STAR-FORMATION HISTORIES
LUMINOUS RED GALAXIES
COSMIC CHRONOMETERS
KECK SPECTROSCOPY
HUBBLE PARAMETER
ABUNDANCE RATIOS
POWER SPECTRUM
EVOLUTION
Journal
IF:
5.4
Papers:
8.3W
Citations:
32.0W
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Cited Papers