Spectral study of ultra-luminous compact X-ray sources with XMM-NEWTON and CHANDRA

R. Miyawaki, M. Sogiho, A. Kubota, K. Makishima, M. Namiki, T. Tanaka, N. Tsunoda

研究成果: Conference contribution

1 引用 (Scopus)

抜粋

Using the ASCA, XMM-Newton, and Chandra data, luminosity-dependent spectral changes of the ultra-luminous X-ray source (ULX) M 81 X-9 were studied. When the luminosity was below a threshold of ∼1.5×1040 erg s-1, the source consistently exhibited power-law spectra. In contrast, the spectra at higher luminosities were more convex, favoring a multi-color-disk modeling. A p-free disk model with p ∼ 0.6 gave a still better fit to the high-luminosity spectra of M81 X-9, suggesting the presence of a slim disk. Another ULX, NGC 1313 Source B, also showed a similar luminosity-dependent spectral change. These results agree with the ASCA report on the two ULXs in IC 342 (Kubota et al., 2001).

元の言語English
ホスト出版物のタイトルX-ray Universe 2005
ページ433-438
ページ数6
エディション604
出版物ステータスPublished - 2006
イベントX-ray Universe 2005 - Madrid, Spain
継続期間: 2005 9 262005 9 30

出版物シリーズ

名前European Space Agency, (Special Publication) ESA SP
番号604
1
ISSN(印刷物)0379-6566

Conference

ConferenceX-ray Universe 2005
Spain
Madrid
期間05/9/2605/9/30

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

フィンガープリント Spectral study of ultra-luminous compact X-ray sources with XMM-NEWTON and CHANDRA' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用

    Miyawaki, R., Sogiho, M., Kubota, A., Makishima, K., Namiki, M., Tanaka, T., & Tsunoda, N. (2006). Spectral study of ultra-luminous compact X-ray sources with XMM-NEWTON and CHANDRA. : X-ray Universe 2005 (604 版, pp. 433-438). (European Space Agency, (Special Publication) ESA SP; 巻数 1, 番号 604).