SpIES：斯皮策IRAC赤道巡天
SpIES: The Spitzer IRAC Equatorial Survey
摘要：
我们描述了斯皮策-IRAC赤道巡天（SpIES）的第一次数据发布;这是一次在“温暖”任务阶段使用斯皮策在赤道SDSS条带82区域进行的115度^2的大面积巡天。SpIES的设计是为了探测足够的体积来测量类星体的聚集和z > 3时的光度函数，以测试活动星系核（AGN）的“反馈”的各种模型。此外，广泛的多波长、多历元辅助数据使SpIES能够识别高红移（z > 5）类星体以及光学巡天遗漏的模糊类星体。SpIES在3.6和4.5微米处分别达到6.13 μJy（21.93 AB星等）和5.75 μJy（22.0 AB星等）的5σ深度-深度明显比WISE更暗。我们发现，SpIES调查恢复了更大的部分光谱确认的类星体（98%）条纹82比恢复WISE（55%）。这个深度在高红移（z > 3.5）时特别强大，SpIES可以恢复94%的已确认类星体，而WISE只能恢复25%。在这里，我们定义了SpIES调查参数，并描述了用于分析SpIES数据的图像处理，源提取和目录制作方法。除了这篇调查论文，我们还发布了SpIES团队创建的234张图像和三个探测目录：包含610万个源的3.6 μ m探测目录，包含650万个源的4.5 μ m探测目录和包含540万个源的双波段探测目录。
英文摘要：
We describe the first data release from the Spitzer-IRAC Equatorial Survey (SpIES); a large-area survey of 115 deg^2 in the Equatorial SDSS Stripe 82 field using Spitzer during its 'warm' mission phase. SpIES was designed to probe sufficient volume to perform measurements of quasar clustering and the luminosity function at z > 3 to test various models for "feedback" from active galactic nuclei (AGN). Additionally, the wide range of available multi-wavelength, multi-epoch ancillary data enables SpIES to identify both high-redshift (z > 5) quasars as well as obscured quasars missed by optical surveys. SpIES achieves 5σ depths of 6.13 μJy (21.93 AB magnitude) and 5.75 μJy (22.0 AB magnitude) at 3.6 and 4.5 microns, respectively - depths significantly fainter than WISE. We show that the SpIES survey recovers a much larger fraction of spectroscopically-confirmed quasars (98%) in Stripe 82 than are recovered by WISE (55%). This depth is especially powerful at high-redshift (z > 3.5), where SpIES recovers 94% of confirmed quasars, whereas WISE only recovers 25%. Here we define the SpIES survey parameters and describe the image processing, source extraction, and catalog production methods used to analyze the SpIES data. In addition to this survey paper, we release 234 images created by the SpIES team and three detection catalogs: a 3.6 μm-only detection catalog containing 6.1 million sources, a 4.5 μm-only detection catalog containing 6.5 million sources, and a dual-band detection catalog containing 5.4 million sources.
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