The assembly of dusty galaxies at z ≥ 4: the build-up of stellar mass and its scaling relations with hints from early JWST data

• DOI: 10.1093/mnras/stac3702
• Publication Date: 2022-12-20T00:47:30Z
• Authors: C Di Cesare; L Graziani; R Schneider; M Ginolfi; A Venditti; P Santini; L K Hunt
• Keywords: Stellar mass; Initial mass function

ABSTRACT The increasing number of distant galaxies observed with ALMA by the ALPINE and REBELS surveys early release observations JWST promise to revolutionize our understanding cosmic star formation assembly normal, dusty galaxies. Here, we introduce a new suite cosmological simulations performed dustyGadget interpret high-redshift data. We investigate comoving history, stellar mass density, galaxy scaling relations such as main sequence, stellar-to-halo mass, dust-to-stellar at z > 4. predicted rate total density rapidly increase in time remarkable agreement available observations, including recent ERO DD-ERS data ≥ 8. A well-defined sequence is found already < 10, following non-evolving power-law, which – if extrapolated high-mass end JWST, REBELS, This consistent efficiently sustained gas accretion specific redshift, established observations. population low-mass (8 Log(M⋆/M⊙) 9) ≤ 6 − 7 that exceeds some current estimates function also origin scatter relation. Future will provide invaluable constraints on these galaxies, helping shed light their role evolution.