Peculiar Characteristics of the Hyper-Luminous X-Ray Source M82 X-1(Poster)

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概要

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• M82 X-1 is the strongest candidate for an intermediate-mass black hole. The peak luminosity of M82 X-1 is higher than those of ultra-luminous X-ray sources (ULXs) by more than one order of magnitude. We therefore call this object a hyper-luminous X-ray source (HLX). To clarify what is going on in such a luminous object, we analyzed the ASCA spectrum of M82 X-1. Since the spatial resolution of ASCA is not sufficient to resolve M82 X-1, we estimated the contamination from X-ray sources other than M82 X-1 by using Chandra. The spectrum of M82 X-1 can be fitted by the multi-color disk model, and we found that there is no correlation between the innermost disk temperature and the X-ray luminosity, which is quite different from ULXs. The results are not consistent with theoretical models such as standard accretion disk model with a Kerr black hole, and a slim disk model.

• 理論物理学刊行会の論文
• 2004-11-15

著者

• Tsuru Takeshi

  Department Of Pathology Kumamoto University School Of Medicine

• Mineshige S

  Kyoto Univ. Kyoto

• Mineshige Shin

  Yukawa Institute For Theoretical Physics Kyoto University

• INUI Tatsuya

  Department of Physics, Kyoto University

• MATSUSHITA Satoki

  Academia Sinica, Institute of Astronomy and Astrophysics

• Inui Tatsuya

  Peptide Institute Inc. Protein Research Foundation

• Inui Tatsuya

  Department Of Chemistry The College Of Staten Island/cuny

• Sameshima Masahiro

  Institute Of Astronomy The University Of Tokyo

• Watarai Ken-ya

  Yukawa Institute For Theoretical Physics Kyoto University

• MATSUSHITA Satoki

  ASIAA

• Sumiyoshi Masanao

  Kyoto Univ. Kyoto

• Matsumoto Hironori

  Department Of Obstetrics And Gynecology School Of Medicine Kyorin University

• Mineshige Shin

  Kyoto Univ. Kyoto

• Inui Tatsuya

  Department of Physics, Faculty of Science, Kyoto University

• MINESHIGE Shin

  Department of Astronomy, Graduate School of Science Kyoto University

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