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(79) 1) Fabian A. C., Rees M. J., Stella L., White N. E., 1989, MNRAS 238, 729 2) Barr P., White N. E., Page C. G., 1985, MNRAS 216, 65 3) Kojima Y., 1991, MNRAS 250, 629 4) Laor A., 1991, ApJ 376, 90 5) ³´µ3 4 ¶5 «9:;<=>? ¤§· ?¸>¹™¯ 6 7º 2007 6) Fabian A. C., et al., 2009, Nature 459, 540 7) Ballantyne D. R., Ross R. R., Fabian A. C., 2001, MNRAS 327, 10 8) Kato S., Fukue J. Mineshige S., Black-Hole Accretion Disks towards a New Paradigm (Kyoto University Press, 2008) 9) Tanaka Y., et al., 1995, Nature 375, 659 10) Nandra K., et al., 1997, ApJ 477, 602 11) Reynolds C. S., Nowak M. A., 2003, Physics Reports 377, 389 12) Miller J. M., 2007, Annu. Rev. Astron. Astrophys. 45, 441. 8"

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(85) * f`J . » 103 ¼. »3½. A Commentary on Broad Iron Line Yasufumi KOJIMA Department of Physics, Hiroshima University, Higashi-Hiroshima 739ῌ8526, Japan Abstract : An emission line from the vicinity of a black hole exhibits intrinsic profile broadened by relativistic Doppler e#ects. The profile is used as a probe of black hole or its nature. In order to avoid any observational dispute originated from ambiguous data, a robust model is needed.. 195.

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