The OTELO survey: the star formation rate evolution of low-mass galaxies
Abstract
We present the analysis of a sample of \ha\,, \hb\ and \oii\ emission line galaxies from the \otelo\ survey, with masses typically below and redshifts between and 1.43. We study the star formation rate, star formation rate density, and number density and their evolution with redshift. We obtain a robust estimate of the specific star formation rate -- stellar mass relation based on the lowest mass sample published so far. We also determine a flat trend of the star formation rate density and number density with redshift. Our results suggest a scenario of no evolution of the number density of galaxies, regardless of their masses, up to redshift . This implies a gradual change of the relative importance of the star forming processes, from high-mass galaxies to low-mass galaxies, with decreasing redshift. We also find little or no variation of the star formation rate density in the redshift range of .
Keywords
Cite
@article{arxiv.2106.12213,
title = {The OTELO survey: the star formation rate evolution of low-mass galaxies},
author = {Bernabé Cedrés and Ana María Pérez-García and Ricardo Pérez-Martínez and Miguel Cerviño and Jesús Gallego and Ángel Bongiovanni and Jordi Cepa and Rocío Navarro Martínez and Jakub Nadolny and Maritza A. Lara-López and Miguel Sánchez-Portal and Emilio J. Alfaro and José A. de Diego and Mauro González-Otero and J. Jesús González and J. Ignacio González-Serrano and Carmen P. Padilla Torres},
journal= {arXiv preprint arXiv:2106.12213},
year = {2021}
}
Comments
8 pages, 3 figures, accepted for publication in ApJ letters