X-ray source population of the Galactic center region obtained with ASCA

被引：0
作者：
Sakano, M [1 ]
Koyama, K [1 ]
Murakami, H [1 ]
Maeda, Y [1 ]
Yamauchi, S [1 ]
机构：
[1] NASDA, SURP, Tsukuba, Ibaraki 3058505, Japan
来源：
NEW CENTURY OF X-RAY ASTRONOMY | 2001年 / 251卷
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中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Front the ASCA X-ray point-source list in the Galactic center 5 x 5 degree(2) region, we found the clear correlation between the position of the sources and the absorption. This fact implies that the major part of the absorption is due to the cold interstellar matter (ISM) in the line of sight. Using the correlation, we estimate the distribution of the cold ISM. We also found that the ratio of numbers of high mass binaries to low mass binaries is significantly smaller than that in the whole Galaxy or SMC, which implies that the past starburst activity in the Galactic center region was rather quiet.
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页码：314 / 315
页数：2
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