激しく変動する電波で見た銀河系中心Sgr A*
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(36) . / (100, 150 GHz) 6 Sgr A῎p. ¬^{71|#I2 2000 I .h. g`&q(rstB!u0" !". 1, X gB$"0 X . 6). #v, _1,2 Ann. Rev. A&A 2001 . B41 E® 1,000 )<+^. I6 w x6 4",2 Y!g. ¯°B±E40²³!´>*µ6I¶·%. d'y `a6 B40". _1 #2 dPgd'(' ¸ P¹(. !"#z{, |#I2 }~^ . .hº( , 2003 I+
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(93) &( @ & G' K 3 45. VdMNO}@ . ῑῐῒ῏ 1) Krichbaum T. P., et al., 1994, Proc. of The Nuclei of Normal Galaxies, Kluwer, pp. 414 2) Wright M. C., Backer D. C., 1993, ApJ 417, 560 3) Krichbaum T. P., et al., 1993, A&A 273, L37 4) Miyazaki A., Tsutsumi T., Tsuboi M., 1999, Adv. Space Res. 23 (No. 5/6), 977 5) Tsuboi M., Miyazaki A., Tsutsumi T., 1999, Proc. of The Central Parsecs of the Galaxy, ASP Conf. Ser. 186, 105 6) Melia F., Falcke H., 2001, ARAA 39, 309 7) Bagano# F. K., et al., 2001, Nature 413, 45 8) Zhao J.-H., et al., 2003, ApJ 586, L29 9) Genzel R. et al., 2003, Nature 425, 934 10) Mauerhan J. C., et al., 2005, ApJ 623, L25 11) Miyazaki A., Tsutsumi T., Tsuboi M., 2004, ApJ 611, L97 12) Miyazaki A., et al., 2009, Proc. of Approaching MicroArcsecond Resolution with VSOP-2, ASP Conf. Ser. 402, 376 13) Li J., et al., 2009, ApJ 700, 417 14) Falcke H., et al., 1998, ApJ 499, 731 15) Yusef-Zadeh F., et al., 2009, ApJ, submitted 16) Miyazaki A., et al., 2006, Proc. of the GC Workshop J. Phys.: Conf. 54, 363 17) Doeleman S. S., et al., 2008 Nature 455, 78. % . 4. ῌ. ῎. ῍. VLBI 45 2008 R"Y Y"# ~<@ 1 mm Sgr A῍451@ 17) g 1K & 459
(94) 6 45' G7(& ALMA !_1 Sgr A῍"& 45 g #¡¢£ &¤ %& 6pq$¥%&Gl
(95) G¦%& L&§^ '¨BC. ,". VLBI ©ª ASTRO-G F?IJK & '©ª 7 mm 45«(%& ¬ ®)¯45 2 °*&± +²1 ³´µ,(-¶@ & G.l » 102 ¼. » 12 ½. Violent Variability of Sgr A῍ at mm-Wave Masato TSUBOI Institute of Space and Astronautical Science, JAXA Atsushi MIYAZAKI Mizusawa VLBI Observatory, NAOJ Abstract : We found many flares of Sgr A῍ from the monitoring observation in the 100/150 GHz bands for 13 years using Nobeyama Millimeter Array. The time scale of the flares is from weeks to hours. The violent variability with short-time scale flares prove that the mm-wave flares happen in the area within 70 Schwarzschild radius. This is corresponding to the conclusion obtained from millimeter wave VLBI.. 733.
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