Main author:
Montero-Dorta, Antonio D.
IAA authors:
Montero-Dorta, Antonio D.;Pérez, Enrique;Prada, Francisco;González Delgado, Rosa M.;García-Benito, Rubén
Authors:
Montero-Dorta, Antonio D.;Pérez, Enrique;Prada, Francisco;Rodríguez-Torres, Sergio;Favole, Ginevra;Klypin, Anatoly;Cid Fernandes, Roberto;González Delgado, Rosa M.;Domínguez, Alberto;Bolton, Adam S.;García-Benito, Rubén;Jullo, Eric;Niemiec, Anna
Journal:
The Astrophysical Journal
Abstract:
We analyze the spectra of 300,000 luminous red galaxies (LRGs) with stellar masses {M}<SUB>* </SUB>≳ {10}<SUP>11</SUP> {M}<SUB>☉ </SUB> from the SDSS-III Baryon Oscillation Spectroscopic Survey (BOSS). By studying their star formation histories, we find two main evolutionary paths converging into the same quiescent galaxy population at z̃ 0.55. Fast-growing LRGs assemble 80% of their stellar mass very early on (z̃ 5), whereas slow-growing LRGs reach the same evolutionary state at z̃ 1.5. Further investigation reveals that their clustering properties on scales of ̃1-30 Mpc are, at a high level of significance, also different. Fast-growing LRGs are found to be more strongly clustered and reside in overall denser large-scale structure environments than slow-growing systems, for a given stellar-mass threshold. Our results show a dependence of clustering on a property that is directly related to the evolution of galaxies, i.e., the stellar-mass assembly history, for a homogeneous population of similar mass and color. In a forthcoming work, we will address the halo connection in the context of galaxy assembly bias.
URL:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85031903297&doi=10.3847%2f2041-8213%2faa8cc5&partnerID=40&md5=85a8287ddf80c6eee78f092f6f6fde9a
Keywords:
galaxies: evolution;galaxies: formation;galaxies: halos;large-scale structure of universe;methods: numerical;surveys