Clustering properties of g-selected galaxies at z ̃ 0.8

DOI: 
10.1093/mnras/stw1483
Publication date: 
01/10/2016
Main author: 
Favole, Ginevra
IAA authors: 
Prada, Francisco
Authors: 
Favole, Ginevra;Comparat, Johan;Prada, Francisco;Yepes, Gustavo;Jullo, Eric;Niemiec, Anna;Kneib, Jean-Paul;Rodríguez-Torres, Sergio A.;Klypin, Anatoly;Skibba, Ramin A.;McBride, Cameron K.;Eisenstein, Daniel J.;Schlegel, David J.;Nuza, Sebastián E.;Chuang, Chia-Hsun;Delubac, Timothée;Yèche, Christophe;Schneider, Donald P.
Journal: 
Monthly Notices of the Royal Astronomical Society
Refereed: 
Yes
Publication type: 
Article
Volume: 
461
Pages: 
3421-3431
Abstract: 
Current and future large redshift surveys, as the Sloan Digital Sky Survey IV extended Baryon Oscillation Spectroscopic Survey (SDSS-IV/eBOSS) or the Dark Energy Spectroscopic Instrument (DESI), will use emission-line galaxies (ELGs) to probe cosmological models by mapping the large-scale structure of the Universe in the redshift range 0.6 〈 z 〈 1.7. With current data, we explore the halo-galaxy connection by measuring three clustering properties of g-selected ELGs as matter tracers in the redshift range 0.6 〈 z 〈 1: (i) the redshift-space two-point correlation function using spectroscopic redshifts from the BOSS ELG sample and VIPERS; (ii) the angular two-point correlation function on the footprint of the CFHT-LS; (iii) the galaxy-galaxy lensing signal around the ELGs using the CFHTLenS. We interpret these observations by mapping them on to the latest high-resolution MultiDark Planck N-body simulation, using a novel (Sub)Halo-Abundance Matching technique that accounts for the ELG incompleteness. ELGs at z ̃ 0.8 live in haloes of (1 ± 0.5) × 10<SUP>12</SUP> h<SUP>-1</SUP>M<SUB>☉</SUB> and 22.5 ± 2.5 per cent of them are satellites belonging to a larger halo. The halo occupation distribution of ELGs indicates that we are sampling the galaxies in which stars form in the most efficient way, according to their stellar-to-halo mass ratio.
Database: 
ADS
WOK
SCOPUS
URL: 
https://ui.adsabs.harvard.edu/#abs/2016MNRAS.461.3421F/abstract
ADS Bibcode: 
2016MNRAS.461.3421F
Keywords: 
galaxies: distances and redshifts;galaxies: haloes;galaxies: statistics;cosmology: observations;cosmology: theory;large-scale structure of Universe;Astrophysics - Cosmology and Nongalactic Astrophysics;Astrophysics - Astrophysics of Galaxies;85A05;85A40