MAXI/GSC detection of a possible flare from the RS CVn type star SZ Psc
ATel #3737; H. Negoro (Nihon U.), R. Usui (Tokyo Tech), K. Yamazaki, Y. Tsuboi, T. Matsumura(Chuo U.), M. Matsuoka, M. Sugizaki, T. Mihara, M. Serino, S. Nakahira, T. Yamamoto, T. Sootome (RIKEN), S. Ueno, H. Tomida, M. Kohama, M. Ishikawa (JAXA), N. Kawai, M. Morii, K. Sugimori, T. Toizumi (Tokyo Tech), A. Yoshida, K. Yamaoka (AGU), H. Tsunemi, M. Kimura, H. Kitayama (Osaka U.), M. Nakajima, F. Suwa (Nihon U.), Y. Ueda, K. Hiroi, M. Shidatsu (Kyoto U.) report on behalf of the MAXI team
on 6 Nov 2011; 12:07 UT
Credential Certification: Yohko Tsuboi (tsuboi@phys.chuo-u.ac.jp)
Subjects: X-ray, Binary, Star, Transient, Variables
Referred to by ATel #: 6940
MAXI/GSC detected an increased X-ray emission from the position consistent with the RS CVn type variable, SZ Psc. The significant X-ray flux in the 2-10 keV band had been detected since 2011-11-05
18:20 (UT) (= MJD 55870.764) and the activity continued at least until 2011-11-05 23:03 (UT) (= MJD 55870.960). The maximum flux of about 110 mCrab was observed during a GSC scan transit starting at 2011-11-05 19:53 (UT) (= MJD 55870.828) and the X-ray luminosity is about 3×1033 ergs/s (distance is assumed to 88 pc). MAXI/GSC previously detected a flare from this source on 2009-12-04, where the maximum flux in the 2-10 keV band was about 50 mCrab. This flare was 2 times larger than the previous one.
