Skip to Main content Skip to Navigation
Journal articles

The main sequence of star-forming galaxies - II. A non-evolving slope at the high-mass end

Abstract : By using the deepest available mid- and far-infrared surveys in the CANDELS, GOODS, and COSMOS fields we study the evolution of the main sequence (MS) of star-forming galaxies (SFGs) from z ∼ 0 to ∼ 2.5 at stellar masses larger than 1010 M. The MS slope and scatter are consistent with a rescaled version of the local relation and distribution, shifted at higher values of star formation rate (SFR) according to ∝ (1 + z)3.2. The relation exhibits a bending at the high-mass end and a slightly increasing scatter as a function of the stellar mass. We show that the previously reported evolution of the MS slope, in the considered mass and redshift range, is due to a selection effect. The distribution of galaxies in the MS region at fixed stellar mass is well represented by a single lognormal distribution at all redshifts and masses, with starburst galaxies occupying the tail at high SFR.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03666699
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Thursday, May 12, 2022 - 4:43:59 PM
Last modification on : Saturday, May 14, 2022 - 3:03:49 AM

Links full text

Identifiers

Collections

Citation

P. Popesso, L. Morselli, A. Concas, C. Schreiber, G. Rodighiero, et al.. The main sequence of star-forming galaxies - II. A non-evolving slope at the high-mass end. Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2019, 490, pp.5285-5299. ⟨10.1093/mnras/stz2635⟩. ⟨insu-03666699⟩

Share

Metrics

Record views

2