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17 April 2024

» arxiv » astro-ph/0608447

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AEGIS: A Panchromatic Study of IRAC-selected Extremely Red Objects with Confirmed Spectroscopic Redshifts
G. Wilson ; J. S. Huang ; G. G. Fazio ; R. Yan ; A. M. Koekemoer ; S. Salim ; S. M. Faber ; J. Lotz ; C. N. A. Willmer ; M. Davis ; A. L. Coil ; J. A. Newman ; C. J. Conselice ; C. Papovich ; M. L. N. Ashby ; P. Barmby ; S. P. Willner ; R. Ivison ; S. Miyazaki ; D. Rigopoulou ;
Date:	21 Aug 2006
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.
Source:	arXiv, astro-ph/0608447
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