A Study of X-Ray Sources in the Central Region of NGC 1569 with Chandra(Poster)

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概要

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• The dwarf starburst galaxy NGC 1569 was observed for 96.8 ks with Chandra. We detected several variable X-ray point sources in the central region of NGC 1569. Inparticular, two bright point sources, CXOU 043048.1+645050 and CXOU 043048.6+645058, exhibit a prominent variability in time. Fitting with the disk blackbody model, we find that CXOU 043048.1+645050 may be a stellar mass black hole with 〜 20M_<⊙>. From the fact that CXOU 043048.6+645058 has a short time variability and flat spectrum, we concluded that this source may be a neutron star binary. We calculated the luminosity ratio of the soft X-ray band to other energy bands, and find that NGC 1569 has a typical luminosity ratio found in starburst galaxies.

• 理論物理学刊行会の論文
• 2004-11-15

著者

• HAYASHIDA Kiyoshi

  Department of Earth and Space Science, Graduate School of Science, Osaka University

• AWAKI Hisamitsu

  Department of Physics, Ehime University

• Hayashida Kiyoshi

  Department Of Astrophysics Osaka University

• HEIKE Kazunori

  Department of Physics, Ehime University

• WEAVER Kimberly

  NASA Goddard Space Flight Center

• Awaki Hisamitsu

  Department Of Physics Ehime University

• Heike Kazunori

  Department Of Physics Ehime University

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