ASCA observation of ultra-luminous X-ray sources in the nearby spiral galaxy NGC 2403

被引：15
|
作者：
Kotoku, J
Mizuno, T
Kubota, A
Makishima, K
机构：
[1] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan
[2] Hiroshima Univ, Fac Sci, Dept Phys, Higashihiroshima 7398526, Japan
来源：
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN | 2000年 / 52卷 / 06期
关键词：
black hole physics; galaxies : individual (NGC 2403); galaxies : spiral; X-rays : galaxies;
D O I：
10.1093/pasj/52.6.1081
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The spiral galaxy NGC 2403 was observed with ASCA, and three previously known X-ray sources (sources 3, 4, and 5) were detected. Among them, the observed 0.5-10 keV flux of source 3 is 1.4 x 10(-12) erg s(-1) cm(-2), implying a bolometric luminosity of 3.0 x 10(39) erg s(-1). Its spectrum can be explained by emission from an optically thick accretion disk with an inner-disk temperature of 1.1 keV. The spectrum and the high luminosity suggest that source 3 is a mass-accreting black hole binary. The observed properties of source 3 can be interpreted in terms of a black hole of mass similar to 15 M., accreting at near the Eddington rate.
引用
收藏
页码：1081 / 1085
页数：5
相关论文
共 50 条
  • [1] ASCA observations of two ultra-luminous compact X-ray sources in the edge-on spiral galaxy NGC 4565
    Mizuno, T
    Ohnishi, T
    Kubota, A
    Makishima, K
    Tashiro, M
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 1999, 51 (05) : 663 - 671
  • [2] ASCA observation of ultra-luminous X-ray sources and interpretation of their nature
    Mizuno, T
    Ohnishi, T
    Kubota, A
    Makishima, K
    Tashiro, M
    ASTRONOMISCHE NACHRICHTEN, 1999, 320 (4-5) : 356 - 356
  • [3] Chandra-detected X-ray sources in the nearby spiral Scd galaxy NGC 2403
    Schlegel, EM
    Pannuti, TG
    ASTRONOMICAL JOURNAL, 2003, 125 (06): : 3025 - 3036
  • [4] ASCA observation of bright X-ray sources in the nearby spiral galaxy IC 342
    Okada, K
    Dotani, T
    Makishima, K
    Mitsuda, K
    Mihara, T
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 1998, 50 (01) : 25 - 30
  • [5] A variable ultra-luminous X-ray source in the colliding galaxy NGC 7714
    Soria, R
    Motch, C
    ASTRONOMY & ASTROPHYSICS, 2004, 422 (03) : 915 - 923
  • [6] ASCA observations of the two Ultra Luminous Compact X-ray Sources in the nearby spiral galaxy IC 342 (I) - State transitions
    Kotoku, J
    Sugiho, M
    Kubota, A
    Makishima, K
    Mizuno, T
    NEW CENTURY OF X-RAY ASTRONOMY, 2001, 251 : 306 - 307
  • [7] ASCA observations of the two Ultra Luminous X-ray sources in the nearby spiral galaxy IC 342 (II) - Possible orbital periods
    Sugiho, M
    Kotoku, J
    Makishima, K
    Kubota, A
    Mizuno, T
    NEW CENTURY OF X-RAY ASTRONOMY, 2001, 251 : 316 - 317
  • [8] Low metallicity and ultra-luminous X-ray sources in the Cartwheel galaxy
    Mapelli, M.
    Colpi, M.
    Zampieri, L.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2009, 395 (01) : L71 - L75
  • [9] Accretion disk spectra of the ultra-luminous X-ray sources in nearby spiral galaxies and galactic superluminal jet sources
    Ebisawa, K
    Zycki, PT
    Kubota, A
    Mizuno, T
    Watarai, K
    PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 2004, (155): : 67 - 70
  • [10] Variability in Ultra-luminous X-ray Sources
    Webb, N. A.
    Cseh, D.
    Kirsten, F.
    PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF AUSTRALIA, 2014, 31 : 1 - 7
12345