X-ray properties of young stellar objects in OMC-2 and OMC-3 from the Chandra X-ray observatory

被引：41
作者：
Tsujimoto, M [1 ]
Koyama, K
Tsuboi, Y
Goto, M
Kobayashi, N
机构：
[1] Kyoto Univ, Grad Sch Sci, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan
[2] Penn State Univ, Dept Phys & Astrophys, Davey Lab 525, University Pk, PA 16802 USA
[3] Natl Astron Observ Japan, Hilo, HI 96720 USA
来源：
ASTROPHYSICAL JOURNAL | 2002年 / 566卷 / 02期
关键词：
infrared : stars; ISM; individual; (OMC-2; OMC-3); stars : pre-main-sequence; X-rays : stars;
D O I：
10.1086/338110
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report X-ray results of the Chandra observation of OMC-2 and OMC-3. A deep exposure of similar to100 ks detects similar to400 X-ray sources in the field of view of the ACIS array, providing one of the largest X-ray catalogs in a star-forming region. Coherent studies of the source detection, time variability, and energy spectra are performed. We classify the X-ray sources into Class I, Class II, and Class III + MS based on the J-, H-, and K-band colors of their near-infrared counterparts and discuss the X-ray properties (temperature, absorption, and time variability) along these evolutionary phases.
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收藏
页码：974 / 981
页数：8
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