Are James Webb Space Telescope observations consistent with warm dark matter?

2024/01/16 by Hoeneisen, Bruce · 1 citation
#Astrophysics of Galaxies (astro-ph.GA) #FOS: Physical sciences

paper · doi:10.48550/arxiv.2401.08730

Abstract

We compare observed with predicted distributions of galaxy stellar masses M_* and galaxy rest-frame ultra-violet luminosities per unit bandwidth L_UV, in the redshift range z = 2 to 13. The comparison is presented as a function of the comoving warm dark matter free-streaming cut-off wavenumber k_fs. For this comparison the theory is a minimal extension of the Press-Schechter formalism with only two parameters: the star formation efficiency, and a proportionality factor between the star formation rate per galaxy and L_UV. These two parameters are fixed to their values obtained prior to the James Webb Space Telescope (JWST) data. The purpose of this comparison is to identify if, and where, detailed astrophysical evolution is needed to account for the new JWST observations.

Cited by

• Discrepancies Between Limits and Measurements of Warm Dark Matter Properties

Related

• New galaxy UV luminosity constraints on warm dark matter from JWST
• Implications of the Stellar Mass Density of High-z Massive Galaxies from JWST on Warm Dark Matter
• A Study of Warm Dark Matter, the Missing Satellites Problem, and the UV Luminosity Cut-Off
• Warm dark matter constraints from the JWST
• High-redshift Galaxies from JWST Observations in More Realistic Dark Matter Halo Models