フェルミ衛星が解き明かす「加速器」パルサーとパルサー星雲
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(159) ῍ῌ῏῎ῑῐ ῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῍῎ 20) 21) 22) 23) 24) 25). Abdo A. A., et al., 2009, Science 325, 848 Abdo A. A., et al., 2010, ApJ, in press Abdo A. A., et al., 2009, Science 325, 845 in press Aharonian F. A., et al., 2006, ApJ 636, 777 Abdo A. A., et al., 2010, ApJ 708, 1254 Atoyan A. M., Aharonian F. A., 1996, MNRAS 278, 525 26) Abdo A. A., et al., 2010, ApJ, in press 27) Abdo A. A., et al., 2010, ApJ, in press. Fermi-LAT View of Pulsars and Its Wind Nebulae Takeshi NAKAMORI, Nobuyuki KAWAI and Yoshikazu KANAI Tokyo Institute of Technology, Dept. of Physics 2ῌ 12ῌ1, Ookayama, Meguro-ku, Tokyo 152ῌ8551, Japan Hiromitsu TAKAHASHI Hiroshima Astrophysical Science Center, Hiroshima University 1ῌ3ῌ1, Kagamiyama, Higashi-Hiroshima, Hiroshima739ῌ8526, Japan on behalf of the Fermi LAT Collaboration Abstract : Fermi-LAT detected ῌ50 gamma-ray pulsars by all-sky observations with the highest sensitivity in the first year. About half of those are first identified as pulsars by the gamma-ray observations, having quite similar characteristics except for radio brightness. Pulsations from nearby millisecond pulsars are also detected. Detailed gamma-ray spectra and pulse profiles obtained put critical constraints on magnetospheric emission models, strongly implying that the emission region far from neutron star surface. In addition, spectra from pulsar wind nebulae reveal an inverse Compton component. We expect drastic progress in understanding electron acceleration and its magnetic environment.. 332. ῎ῐ῍ῑ. 2010 ῏ 5 ῍.
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