ASTRO-F - The next generation of mid-infrared surveys
ASTRO-F - The next generation of mid-infrared surveys
复制标题
DOI：
10.1046/j.1365-8711.2001.04376.x
复制
发表时间：
2000-08
期刊：
影响因子：
--
通讯作者：
C. Pearson;H. Matsuhara;H. Watarai;T. Matsumoto;T. Onaka
中科院分区：
文献类型：
--
作者：
C. Pearson;H. Matsuhara;H. Watarai;T. Matsumoto;T. Onaka
我们介绍了将于2004年由日本空间和宇航科学研究所发射的ASTRO-F（也称为红外线成像探测器）的基本观测战略。我们检查2个调查方案，一个深~1sq.deg。探测达到的灵敏度比ISO在中红外中执行的最深探测低一个数量级，以及浅的18平方度中红外（6个波段中7- 25 μ m），其覆盖的面积大于所有ISO中红外探测所覆盖的整个面积。使用2个宇宙学模型，计算每次巡天预测的星系数量。第一个模型使用了增强的纯光度演化模型的皮尔逊和罗恩-罗宾逊，而新的模型纳入了一个强烈的演变ULIG组件。对于深度调查，在最短的波段应该探测到20，000 - 30，000个星系，在最长的波段（25微米）应该探测到5000个星系。浅层勘测预计将探测到100，000 - 150，000个源。
We present basic observational strategies for ASTRO-F (also known as the Imaging Infra Red Surveyor (IRIS)) to be launched in 2004 by the Japanese Institute of Space and Astronautical Science (ISAS). We examine 2 survey scenarios, a deep ~1sq.deg. survey reaching sensitivities an order of magnitude below than the deepest surveys performed by ISO in the mid-IR, and a shallow \~18sq.deg mid-infrared (7-25um in 6 bands) covering an area greater than the entire area covered by all ISO mid-IR surveys. Using 2 cosmological models the number of galaxies predicted for each survey is calculated. The first model uses an enhancement of the pure luminosity evolution model of Pearson&Rowan-Robinson while the new models incorporate a strongly evolving ULIG component. For the deep survey, between 20,000-30,000 galaxies should be detected in the shortest wavebands and ~5000 in the longest (25um) band. The shallow survey would be expected to detect of the order of 100,000 - 150,000 sources.