期刊
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷 172, 期 1, 页码 132-149出版社
IOP PUBLISHING LTD
DOI: 10.1086/520511
关键词
submillimeter; infrared : galaxies; surveys
The inner 20 x 20 arcmin(2) of the COSMOS field was imaged at 250 GHz ( 1.2 mm) to an rms noise level of similar to 1 mJy per 11 '' beam using the Max-Planck Millimeter Bolometer Array ( MAMBO- 2) at the IRAM 30 m telescope. We detect 15 sources at significance between 4 and 7 sigma, 11 of which are also detected at 1.4 GHz with the VLA with a flux density > 24 mu Jy ( 3 sigma). We identify 12 more lower significance mm sources based on their association with faint radio sources. We present the multifrequency identifications of the MAMBO sources, including VLA radio flux densities, optical and near-infrared identifications, as well as the XMM-Newton X-ray detection for two of the mm sources. We compare radio and optical photometric redshifts and briefly describe the host galaxy morphologies. The colors of the identified optical counterparts suggest most of them to be high-redshift ( z similar to 2-3) star-forming galaxies. At least three sources appear lensed by a foreground galaxy. We highlight some MAMBO sources that do not show obvious radio counterparts. These sources could be dusty starburst galaxies at redshifts > 3.5. The 250 GHz source areal density in the COSMOS field is comparable to that seen in other deep mm fields.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据