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
关键词：
D O I：
暂无
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.
引用
收藏
页码：314 / 315
页数：2
相关论文
共 50 条
  • [31] ASCA observation of X-ray emission from the Galactic ridge
    Tanaka, Y
    ASTRONOMY & ASTROPHYSICS, 2002, 382 (03): : 1052 - 1060
  • [32] Unresolved X-ray emission from the galactic ridge with ASCA
    Yamauchi, S
    Kaneda, H
    Koyama, K
    Makishima, K
    Matsuzaki, K
    Sonobe, T
    Tanaka, Y
    Yamasaki, N
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 1996, 48 (02) : L15 - L20
  • [33] Faint X-ray sources resolved in the ASCA Galactic plane survey and their contribution to the Galactic ridge X-ray emission
    Sugizaki, M
    Mitsuda, K
    Kaneda, H
    Matsuzaki, K
    Yamauchi, S
    Koyama, K
    ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2001, 134 (01): : 77 - 102
  • [34] Unresolved X-ray emission from the galactic ridge with ASCA
    Yamauchi, Shigeo
    Kaneda, Hidehiro
    Koyama, Katsuji
    Makishima, Kazuo
    Matsuzaki, Keiichi
    Sonobe, Takashi
    Tanaka, Yasuo
    Yamasaki, Noriko
    Publications of the Astronomical Society of Japan, 1996, 48 (02):
  • [35] JEM-X/INTEGRAL X-ray survey of the galactic center region
    S. A. Grebenev
    I. A. Mereminskiy
    Astronomy Letters, 2015, 41 : 765 - 784
  • [36] JEM-X/INTEGRAL X-ray survey of the galactic center region
    Grebenev, S. A.
    Mereminskiy, I. A.
    ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2015, 41 (12): : 765 - 784
  • [37] The zoo of X-ray sources in the Galactic center region:: Observations with BeppoSAX
    Sidoli, L
    Mereghetti, S
    Israel, GL
    Chiappetti, L
    Treves, A
    Orlandini, M
    ASTROPHYSICAL JOURNAL, 1999, 525 (01): : 215 - 227
  • [38] An ultrasoft transient X-ray source near the Galactic bulge region
    Yamauchi, S
    Nakamura, E
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 2004, 56 (05) : 803 - 808
  • [39] Galactic X-ray source populations
    Motch, C.
    ASTRONOMISCHE NACHRICHTEN, 2008, 329 (02) : 166 - 169
  • [40] Absorption columns with bright X-ray sources near the galactic center: Mass estimation in the Galactic Center region
    Sakano, M
    Nishiuchi, M
    Maeda, Y
    Koyama, K
    Yokogawa, J
    CENTRAL REGIONS OF THE GALAXY AND GALAXIES, 1998, : 443 - 444
12345