Multi-Wavelength Study of a Complete IRAC 3.6micron-Selected Galaxy Sample: a Fair Census of Red and Blue Populations at Redshifts 0.4-1

Abstract

We present a multi-wavelength study of a 3.6 $\mu$m-selected galaxy sample in the Extended Groth strip. The sample is complete for galaxies with stellar mass $>10^{9.5}$ \Msun and redshift $0.4<z<1.2$. In this redshift range, the IRAC 3.6 $\mu$m band measures the rest-frame near-infrared band, permitting nearly unbiased selection with respect to both quiescent and star-forming galaxies. The numerous spectroscopic redshifts available in the EGS are used to train an Artificial Neural Network to estimate photometric redshifts. The distribution of photometric redshift errors is Gaussian with standard deviation $\sim 0.025(1+z)$, and the fraction of redshift failures ($>3\sigma$ errors) is about 3.5%. A new method of validation based on pair statistics confirms the estimate of standard deviation even for galaxies lacking spectroscopic redshifts. Basic galaxy properties measured include rest-frame $U-B$ colors, $B$- and $K$-band absolute magnitudes, and stellar masses. We divide the sample into quiescent and star-forming galaxies according to their rest-frame $U-B$ colors and 24 to 3.6 \micron\ flux density ratios and derive rest $K$-band luminosity functions and stellar mass functions for quiescent, star forming, and all galaxies. The results show that massive, quiescent galaxies were in place by $z\approx 1$, but lower mass galaxies generally ceased their star formation at later epochs.

64 pages, 24 figures

References in corpus (29)

• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• zCOSMOS: A Large VLT/VIMOS redshift survey covering 0 < z < 3 in the COSMOS field
• Detection of quiescent galaxies in a bicolor sequence from z=0-2
• The Herschel Multi-tiered Extragalactic Survey: HerMES
• The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets
• Galaxy And Mass Assembly (GAMA): The galaxy stellar mass function at z < 0.06
• The stellar masses of 25000 galaxies at 0.2<z<1.0 estimated by the COMBO-17 survey
• The Redshift Evolution of Wet, Dry, and Mixed Galaxy Mergers from Close Galaxy Pairs in the DEEP2 Galaxy Redshift Survey
• The DEEP3 Galaxy Redshift Survey: The Impact of Environment on the Size Evolution of Massive Early-type Galaxies at Intermediate Redshift
• Photometric Redshifts in the IRAC Shallow Survey
• Near-Infrared and Optical Luminosity Functions from the 6dF Galaxy Survey
• A Public, K-Selected, Optical-to-Near-Infrared Catalog of the Extended Chandra Deep Field South (ECDFS) from the MUltiwavelength Survey by Yale-Chile (MUSYC)
• AEGIS: Enhancement of Dust-enshrouded Star Formation in Close Galaxy Pairs and Merging Galaxies up to z ~ 1
• The Herschel Multi-Tiered Extragalactic Survey: SPIRE-mm Photometric Redshifts
• The Millennium Galaxy Catalogue: The luminosity functions of bulges and discs and their implied stellar mass densities
• A catalog of mid-infrared sources in the Extended Groth Strip
• Cosmic evolution of the galaxy mass and luminosity functions by morphological type from multi-wavelength data in the CDF-South
• Clustering of K-selected Galaxies at 2<z<3.5: Evidence for a Color-Density Relation
• AGN and Starburst Classification from Spitzer Mid-Infrared Spectra for High Redshift SWIRE Sources
• AEGIS20: a radio survey of the Extended Groth Strip
• The Gemini Deep Deep Survey: VIII. When Did Early-type Galaxies Form?
• HerMES: point source catalogues from deep Herschel-SPIRE observations
• Strong PAH Emission from z~2 ULIRGs
• IRS Spectroscopy and Multi-wavelength Study of Luminous Star-forming Galaxies at z~1.9
• The Clustering Evolution of Distant Red Galaxies in the GOODS-MUSIC Sample
• SPITZER Observations of z~3 Lyman Break Galaxies: stellar masses and mid-infrared properties
• CANDELS: Correlations of SEDs and Morphologies with Star-formation Status for Massive Galaxies at z ~ 2
• AEGIS: Infrared Spectroscopy of An Infrared Luminous Lyman Break Galaxy at z=3.01

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• P-MaNGA: Gradients in Recent Star Formation Histories as Diagnostics for Galaxy Growth and Death
• Galaxy Zoo: Are Bars Responsible for the Feeding of Active Galactic Nuclei at 0.2 < z < 1.0?
• CLASH-VLT: The stellar mass function and stellar mass density profile of the z=0.44 cluster of galaxies MACS J1206.2-0847
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• The Dearth of Difference between Central and Satellite Galaxies I. Perspectives on star formation quenching and AGN activities
• Evolution of Star-formation Properties of High-redshift Cluster Galaxies since $z=2$
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• Probability Friends-of-Friends (PFOF) Group Finder: Performance Study and Observational Data Applications on Photometric Surveys
• Searching for low-redshift faint galaxies with MMT/Hectospec
• A Complete 16 micron-Selected Galaxy Sample at $z\sim 1$: Mid-infrared Spectral Energy Distributions
• A Large Massive Quiescent Galaxy Sample at z~1.2
• Spectral energy distribution similarity of the local galaxies and the 3.6um selected galaxies from the Spitzer Extended Deep Survey
• Physical properties of distant red galaxies in the COSMOS/UltraVISTA field