Hard X-ray detection from the core of the Monoceros R2 star forming region

被引：4
|
作者：
Hamaguchi, K [1 ]
Tsuboi, Y [1 ]
Koyama, K [1 ]
机构：
[1] Kyoto Univ, Fac Sci, Dept Phys, Sakyo Ku, Kyoto 6068502, Japan
来源：
BROAD BAND X-RAY SPECTRA OF COSMIC SOURCES | 2000年 / 25卷 / 3-4期
关键词：
D O I：
10.1016/S0273-1177(99)00794-2
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
We report on the hard X-ray detection from the core of the Monoceros R2 giant molecular cloud. The temperature is extremely high of about 5.5 keV in quiescent state. The strongest source among hard sources is associated with molecular core and suffered deep absorption. A hard X-ray flare near the core is also observed. The temperature is also extremely high. Strong Ca and Fe lines are observed in flare spectrum, and the energies are significantly lower than those of usual plasma model. The flare spectrum show some differences from those of low-mass young stars. It might be evidence of the X-rays from a high-mass protostar. (C) 2000 COSPAR. Published by Elsevier Science Ltd.
引用
收藏
页码：531 / 534
页数：4
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