16 μm Imaging around the Hubble Deep Field-North with the Spitzer IRS
16 μm Imaging around the Hubble Deep Field-North with the Spitzer IRS
复制标题
使用 Spitzer IRS 在哈勃深场北周围进行 16 μm 成像
DOI：
10.1086/496946
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发表时间：
2005
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通讯作者：
U. Crete
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作者：
H. I. T. V. Charmandaris;R. Chary;J. Colbert;L. Armus;D. S. S. Center;Cornell;Chercheur Associ'e;O. Paris;U. Crete
我们介绍了一项16μm成像在Goods北场的初步研究。观测结果是利用斯皮策红外光谱仪的“峰值”成像能力获得的。我们测量了35个Armin2到平均3σ深度0.075 mJy，探测到149源。这项调查与国际标准化组织在15μm处成像的区域部分重叠，我们证明我们的光度和星系数计数与其测量结果是一致的。通过与局部模板的比较，我们推断了16个μm探测器的总红外光度，发现LIR的范围很广，从~109LIR到1012LIR L☉。大约有相当于Chandra 2ms星表的源与之对应，我们发现硬波段(2-8keV)的源可能对X射线通量有很强的贡献。钱德拉的超深灵敏度意味着一些X射线探测可能是纯粹的恒星爆发天体。我们检验了16到24μm的通量比，得出结论：它为探测z~0.5和z>；0.8处的红移多环芳烃排放提供了证据。
We present a pilot study of 16 μm imaging within the GOODS northern field. Observations were obtained using the "peak-up" imaging capability of the Spitzer IRS. We survey 35 arcmin2 to an average 3 σ depth of 0.075 mJy and detect 149 sources. The survey partially overlaps the area imaged at 15 μm by the ISO, and we demonstrate that our photometry and galaxy number counts are consistent with its measurements. We infer the total infrared luminosity of 16 μm detections using a comparison to local templates and find a wide range of LIR, from ~109 to 1012 L☉. Approximately of the detected sources have counterparts in the Chandra 2 Ms catalog, and we show that the hard-band (2-8 keV) detected sources are likely to have strong active galactic nucleus (AGN) contributions to the X-ray flux. The ultradeep sensitivity of Chandra implies that some X-ray detections may be purely starbursting objects. We examine the 16 to 24 μm flux ratio and conclude that it shows evidence for the detection of redshifted polycyclic aromatic hydrocarbon (PAH) emission at z ~ 0.5 and z > 0.8.
DOI：
10.1117/12.550744
发表时间：
2004-07
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作者：
G. Fazio;J. Hora;L. E. Allen;M. Ashby;P. Barmby;L. Deutsch;J.-S. Huang;S. Kleiner;M. Marengo-M.
通讯作者：
G. Fazio;J. Hora;L. E. Allen;M. Ashby;P. Barmby;L. Deutsch;J.-S. Huang;S. Kleiner;M. Marengo-M.
C.A.诺曼：《天体物理学杂志》。
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