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ATEL # 2427; M. Nakajima (Nihon U.), M. Sugizaki (RIKEN), M. Matsuoka, K. Kawasaki, S. Ueno, H. Tomida, M. Suzuki, M. Ishikawa (JAXA), T. Mihara, M. Kohama, Y.E. Nakagawa, T. Yamamoto, T. Saotome (RIKEN), N. Kawai, M. Morii, K. Sugimori (Tokyo Tech), A. Yoshida, K. Yamaoka, S. Nakahira (AGU), H. Tsunemi, M. Kimura (Osaka U.), H. Negoro, S. Miyoshi, H. Ozawa, R. Ishiwata, (Nihon U.), Y. Ueda, N. Isobe, S. Eguchi, K. Hiroi (Kyoto U.), A. Daikyuji (Miyazaki U.), A. Uzawa, T. Matsumura, K. Yamazaki (Chuo U.) report on behalf of the MAXI team
on 10 Feb 2010; 3:12 UT
Distributed as an Instant Email Notice (Transients)
Password Certification: Motoki Nakajima (email@example.com)
Subjects: X-ray, Binaries, Neutron Stars, Pulsars, Transients
Following the previous outbursts (Atel #2319, #2369) MAXI/GSC has again detected an X-ray activity of the recurrent transient binary X-ray pulsar V0332+53. These series of 3 outbursts are observed after an interval of 27 years (Stella et al. 1985, ApJ, 288, L45). The one-day averaged flux in the 1.5-20 keV band reached ~20 mCrab on 5 February 2010 (MJD 55232). The current increasing trend of the source flux is comparable to those of the previous activities. The latest light curve and image of this source are updated daily at the following URL: http://maxi.riken.jp/sourcelist.html.