The ALHAMBRA survey : $B-$band luminosity function of quiescent and star-forming galaxies at $0.2\le z<1$ by PDF analysis

Abstract

Our goal is to study the evolution of the $B-$band luminosity function (LF) since $z=1$ using ALHAMBRA data. We used the photometric redshift and the $I-$band selection magnitude probability distribution functions (PDFs) of those ALHAMBRA galaxies with $I\le 24$ mag to compute the posterior LF. We statistically studied quiescent and star-forming galaxies using the template information encoded in the PDFs. The LF covariance matrix in redshift-magnitude-galaxy type space was computed, including the cosmic variance. That was estimated from the intrinsic dispersion of the LF measurements in the 48 ALHAMBRA sub-fields. The uncertainty due to the photometric redshift prior is also included in our analysis. We modelled the LF with a redshift-dependent Schechter function affected by the same selection effects than the data. The measured ALHAMBRA LF at $0.2\le z<1$ and the evolving Schechter parameters both for quiescent and star-forming galaxies agree with previous results in the literature. The estimated redshift evolution of $M_B^{\ast }\propto Qz$ is $Q_{\mathrm{SF}}=-1.03\pm 0.08$ and $Q_{\mathrm{Q}}=-0.80\pm 0.08$, and of $\log {\varphi }^{\ast }\propto Pz$ is $P_{\mathrm{SF}}=-0.01\pm 0.03$ and $P_{\mathrm{Q}}=-0.41\pm 0.05$. The measured faint-end slopes are ${\alpha }_{\mathrm{SF}}=-1.29\pm 0.02$ and ${\alpha }_{\mathrm{Q}}=-0.53\pm 0.04$. We find a significant population of faint quiescent galaxies, modelled by a second Schechter function with slope $\beta =-1.31\pm 0.11$. We find a factor $2.55\pm 0.14$ decrease in the luminosity density $j_B$ of star-forming galaxies, and a factor $1.25\pm 0.16$ increase in the $j_B$ of quiescent ones since $z=1$, confirming the continuous build-up of the quiescent population with cosmic time. The contribution of the faint quiescent population to $j_B$ increases from 3% at $z=1$ to 6% at $z=0$. The developed methodology will be applied to future multi-filter surveys such as J-PAS.

Accepted for publication in Astronomy and Astrophysics. 25 pages, 20 figures, 7 tables

References in corpus (19)

• Mass and environment as drivers of galaxy evolution in SDSS and zCOSMOS and the origin of the Schechter function
• The Cosmic Evolution Survey (COSMOS) -- Overview
• EAZY: A Fast, Public Photometric Redshift Code
• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• Detection of quiescent galaxies in a bicolor sequence from z=0-2
• The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets
• Galaxies in the Hubble Ultra Deep Field: I. Detection, Multiband Photometry, Photometric Redshifts, and Morphology
• The GOODS-MUSIC sample: a multicolour catalog of near-IR selected galaxies in the GOODS-South field
• The DEEP2 Galaxy Redshift Survey: Color and Luminosity Dependence of Galaxy Clustering at z~1
• The ALHAMBRA Project: A large area multi medium-band optical and NIR photometric survey
• A Galaxy Photometric Redshift Catalog for the Sloan Digital Sky Survey Data Release 6
• Galaxy And Mass Assembly: Deconstructing Bimodality - I. Red ones and blue ones
• Anatomy of luminosity functions: the 2dFGRS example
• The ALHAMBRA survey: Accurate merger fractions by PDF analysis of photometric close pairs
• What Lies Beneath: Using p(z) to Reduce Systematic Photometric Redshift Errors
• The red and blue galaxy populations in the GOODS field: evidence for an excess of red dwarfs
• Galaxy clusters and groups in the ALHAMBRA Survey
• High redshift galaxies in the ALHAMBRA survey: I. selection method and number counts based on redshift PDFs
• A $K_s$-band selected catalogue of objects in the ALHAMBRA survey

Cited by in corpus (13)

• Horizon-AGN virtual observatory - 1. SED-fitting performance and forecasts for future imaging surveys
• DETECTIFz galaxy groups in the REFINE survey -- 1. Group detection and quenched fraction evolution at $z<2.5$
• J-PLUS: Uncovering a large population of extreme [OIII] emitters in the local Universe
• The HI mass function of star-forming galaxies at $\mathbf{z}\sim 0.35$
• Augmenting machine learning photometric redshifts with Gaussian mixture models
• TOPz: Photometric redshifts for J-PAS
• J-PLUS: The star formation main sequence and rate density at d < 75 Mpc
• Modelling the luminosity function of long Gamma Ray Bursts using SWIFT and FERMI
• Constructing a multivariate distribution function with a vine copula: toward multivariate luminosity and mass functions
• Catalog-free modeling of galaxy types in deep images: Massive dimensional reduction with neural networks
• The miniJPAS survey. Evolution of the luminosity and stellar mass functions of galaxies up to $z\sim 0.7$
• The Sensitivity of the Redshift Distribution to Galaxy Demographics
• TOPz: Photometric redshifts using template fitting applied to the GAMA survey