AEGIS: A Panchromatic Study of IRAC-selected Extremely Red Objects with Confirmed Spectroscopic Redshifts
AEGIS: A Panchromatic Study of IRAC-selected Extremely Red Objects with Confirmed Spectroscopic Redshifts
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DOI：
10.1086/517923
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发表时间：
2006-08
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通讯作者：
G. Wilson;J. Huang;G. Fazio;R. Yan;A. Koekemoer;S. Salim;S. Faber;J. Lotz;C. Willmer;M. Davis;A. Coil;J. Newman;C. Conselice;C. Papovich;M. Ashby;P. Barmby;S. Willner;R. Ivison;S. Miyazaki;D. Rigopoulou
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作者：
G. Wilson;J. Huang;G. Fazio;R. Yan;A. Koekemoer;S. Salim;S. Faber;J. Lotz;C. Willmer;M. Davis;A. Coil;J. Newman;C. Conselice;C. Papovich;M. Ashby;P. Barmby;S. Willner;R. Ivison;S. Miyazaki;D. Rigopoulou
我们研究了87个极红天体（ERO），这些天体的颜色都比R - [3.6] = 4.0红，并且已经证实了光谱红移。这两个约束一起导致这个样本在0.76 < z < 1.42处填充了相当窄的红移范围。这里包含的关键新成分是斯皮策太空望远镜红外阵列相机（IRAC）的数据。基于[3.6] - [8.0]颜色，我们证明了将ERO分类为早型星系、尘埃星暴星系或活动星系核（AGN;幂律类型）是可能的。我们提出了紫外到中红外光谱能量分布（SED）和高级相机的调查（ACS）的图像，这两个都支持我们简单的IRAC颜色分类。
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 as early-type galaxies, dusty starburst galaxies, or active galactic nuclei (AGNs; power-law 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.