AEGIS: A Panchromatic Study of IRAC-selected Extremely Red Objects with Confirmed Spectroscopic Redshifts

Abstract

We study 87 Extremely Red Objects (EROs), selected both to have color redder than R-[3.6] = 4.0, and to have confirmed spectroscopic redshifts. Together, these two constraints result in this sample populating a fairly narrow redshift range at 0.76 < z < 1.42. The key new ingredient included here is deep Spitzer Space Telescope InfraRed Array Camera (IRAC) data. Based on [3.6]-[8.0] color, we demonstrate that it is possible to classify EROs into early-type, dusty starburst, or power-law (AGN) types. We present ultraviolet to mid-infrared spectral energy distributions (SEDs) and Advanced Camera for Surveys (ACS) images, both of which support our simple IRAC color classification.

9 pages, 5 figures, ApJL AEGIS special edition, in press

References in corpus (24)

• The Infrared Array Camera (IRAC) for the Spitzer Space Telescope
• Infrared luminosity functions from the Chandra Deep Field South : the Spitzer view on the history of dusty star formation at 0<z<1
• Subaru Prime Focus Camera -- Suprime-Cam --
• A new photometric technique for the joint selection of star-forming and passive galaxies at 1.4<z<2.5
• Obscured and unobscured active galactic nuclei in the Spitzer Space Telescope First Look Survey
• A Significant Population of Red, Near-IR Selected High Redshift Galaxies
• The DEEP2 Galaxy Redshift Survey: The Galaxy Luminosity Function to z ~ 1
• Spitzer Observations of Massive Red Galaxies at High Redshift
• A Census of Optical and Near-Infrared Selected Star-Forming and Passively Evolving Galaxies at Redshift Z~2
• Evolution and Color-Dependence of the Galaxy Angular Correlation Function: 350,000 Galaxies in 5 Square Degrees
• The DEEP Groth Strip Galaxy Redshift Survey. III. Redshift Catalog and Properties of Galaxies
• Spitzer observations of MAMBO galaxies: weeding out active nuclei in starbursting proto-ellipticals
• Mid-infrared properties of X-ray sources in the Extended Groth Strip
• Morphologies and Spectral Energy Distributions of Extremely Red Galaxies in the GOODS-South Field
• Simulating the Spitzer mid-IR color-color diagrams
• IRAC Imaging of Lockman Hole
• SPITZER Observations of z~3 Lyman Break Galaxies: stellar masses and mid-infrared properties
• Infrared Luminous Lyman Break Galaxies: A Population that Bridges LBGs and SCUBA Galaxies
• The relative abundances of ellipticals and starbursts among the Extremely Red Galaxies
• Far-infrared characterization of an ultra-luminous starburst associated with a massively-accreting black hole at z=1.15
• AEGIS: The Diversity of Bright Near-IR Selected Distant Red Galaxies
• Extremely Red Objects in The Lockman Hole
• AEGIS: Infrared Spectroscopy of An Infrared Luminous Lyman Break Galaxy at z=3.01
• AEGIS: Galaxy Spectral Energy Distributions from the X-Ray to Radio

Cited by in corpus (14)

• The All-wavelength Extended Groth Strip International Survey (AEGIS) Data Sets
• AEGIS20: a radio survey of the Extended Groth Strip
• The Evolution of Dusty Star Formation and Stellar Mass Assembly in Clusters: Results from the IRAC 3.6um, 4.5um, 5.8um and 8.0um Cluster Luminosity Functions
• The Faint and Extremely Red K-band Selected Galaxy Population in the DEEP2/Palomar Fields
• Far-infrared characterization of an ultra-luminous starburst associated with a massively-accreting black hole at z=1.15
• Host galaxy colour gradients and accretion disc obscuration in AEGIS z~1 X-ray-selected active galactic nuclei
• Classification of Extremely Red Objects in the COSMOS Field
• On the Stellar Populations in Faint Red Galaxies in the Hubble Ultra Deep Field
• Massive, red galaxies in a hierarchical universe-II Clustering of Extremely Red Objects
• The Clustering of Extremely Red Objects
• Classification of Extremely Red Objects in the Hubble Ultra Deep Field
• On the nature of red galaxies: the Chandra perspective
• Morphology and structure of extremely red objects at $z\sim 1$ in the CANDELS-COSMOS field
• The Young Stellar Population of the Nearby Late-Type Galaxy NGC 1311