静穏状態におけるX線連星のスペクトルの物理的解釈と降着の描像
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(104) ῎῍῏ῌ 1) 2) 3) 4) 5) 6) 7) 8) 9) 10). 270. Liu Q. Z., et al., 2007, A&A 469, 807 Liu Q. Z., et al., 2006, A&A 455, L1165 Masseti N., et al., 2002, A&A 382, 104 Tiengo, A., et al., 2005, A&A 441, 283 Briel, U. G., et al., 2000, SPIE 4012, 154 den Herder, J.-W., 2001, A&A 365, L7 Dickey, J. M., Lockman, F. J., 1990, ARA&A 28, 215 Mitsuda, K., et al., 1984, PASJ 36, 741 Poutanen, J., Svensson, R., 1996, ApJ 470, 249 Nagae, O., et al., 2010, PASJ, submitted. Physical Interpretation of the Spectra and Accretion Picture of X-ray Binary in Its Quiescent State Osamu NAGAE Department of Physical Science, School of Science, Hiroshima University, 1ῌ3ῌ1 Kagamiyama, Higashi-hiroshima, Hiroshima 739ῌ8526, Japan Abstract : Physical interpretations of energy spectra of high luminous X-ray binaries have been developed owing to their accurate spectra. However, the spectra below 0.1῍ Eddington luminosity (LE) do not have enough quality, and detailed spectral analysis have not been done. Thus, using Suzaku satellite, we observed an X-ray binary, 4U 1700ῌ24, of which the luminosity is always below 0.01῍ of LE, and we analyzed archival data of XMM-Newton satellite to study a physical interpretation of the spectra and accretion picture. The continuum spectra are represented by Comptonized black body arisen from the neutron-star surface and the Power-law component. Several emission lines are also detected by XMM-Newton, which ar thought to be arisen from the photoionized accretion disk. This infers that the accretion disk still exists even in quiescent state.. ῏ῑ῎ῒ. 2010 ῐ 4 ῎.
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