期刊
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
卷 160, 期 2, 页码 319-352出版社
UNIV CHICAGO PRESS
DOI: 10.1086/432092
关键词
ISM : individual (Orion Nebula, OMC-1); open clusters and associations : individual (Orion Nebula Cluster); stars : early-type; stars : pre-main-sequence; X-rays : stars
We present a description of the data reduction methods and the derived catalog of more than 1600 X-ray point sources from the exceptionally deep 2003 January Chandra X-Ray Observatory ( Chandra) observation of the Orion Nebula Cluster and embedded populations around OMC-1. The observation was obtained with Chandra's Advanced CCD Imaging Spectrometer (ACIS) and has been nicknamed the Chandra Orion Ultradeep Project ( COUP). With an 838 ks exposure made over a continuous period of 13.2 days, the COUP observation provides the most uniform and comprehensive data set on the X-ray emission of normal stars ever obtained in the history of X-ray astronomy.
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