Clustering properties of g-selected galaxies at z~0.8

JOHAN COMPARAT; ERIC JULLO; SERGIO A. RODRIGUEZ-TORRES; CAMERON K. MCBRIDE; SEBASTIÁN E. NUZA; TIMOTHÉE DELUBAC; GINEVRA FAVOLE; GUSTAVO YEPES; JEAN PAUL-KNEIB; RAMIN A. SKIBBA; DAVID J. SCHLEGEL; FRANCISCO PRADA; CRISTINA CHIAPPINI; ANNA NIEMEC; DONALD P. SCHNEIDER; ANATOLY KLYPIN; DANIEL J. EISENSTEIN; CHIA-HSUN CHUANG; CHRISTOPHE YECHE

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

WILEY-BLACKWELL PUBLISHING, INC

Lugar: Bristol; Año: 2016

0035-8711

Current and future large redshift surveys, as the Sloan Digital SkySurvey IV extended Baryon Oscillation Spectroscopic Survey(SDSS-IV/eBOSS) or the Dark Energy Spectroscopic Instrument (DESI), willuse emission-line galaxies (ELGs) to probe cosmological models bymapping the large-scale structure of the Universe in the redshift range0.6 < z < 1.7. With current data, we explore the halo-galaxyconnection by measuring three clustering properties of g-selected ELGsas matter tracers in the redshift range 0.6 < z < 1: (i) theredshift-space two-point correlation function using spectroscopicredshifts from the BOSS ELG sample and VIPERS; (ii) the angulartwo-point correlation function on the footprint of the CFHT-LS; (iii)the galaxy-galaxy lensing signal around the ELGs using the CFHTLenS. Weinterpret these observations by mapping them on to the latesthigh-resolution MultiDark Planck N-body simulation, using a novel(Sub)Halo-Abundance Matching technique that accounts for the ELGincompleteness. ELGs at z~0.8 live in haloes of (1 ± 0.5)× 1012 h-1M⊙ 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 samplingthe galaxies in which stars form in the most efficient way, according totheir stellar-to-halo mass ratio.