MAXI/GSC detection of a new X-ray outburst from the LMXB 4U 1608-52

ATel #9330; Y. Ono, Y. Tachibana, N. Kawai (Tokyo Tech), H. Negoro, M. Nakajima (Nihon U.), T. Mihara (RIKEN), S. Ueno, H. Tomida, S. Nakahira, M. Ishikawa, Y. Sugawara (JAXA), Y. E. Nakagawa (JAMSTEC), M. Sugizaki, M. Serino, W. Iwakiri, M. Shidatsu, J. Sugimoto, T. Takagi, M. Matsuoka (RIKEN), N. Isobe, S. Sugita, T. Yoshii, T. Fujiwara (Tokyo Tech), A. Yoshida, T. Sakamoto, Y. Kawakubo, Y. Kitaoka (AGU), H. Tsunemi, R. Shomura (Osaka U.), K. Tanaka, T. Masumitsu, T. Kawase (Nihon U.), Y. Ueda, T. Kawamuro, T. Hori, A. Tanimoto (Kyoto U.),Y. Tsuboi, Y. Nakamura, R. Sasaki (Chuo U.), M. Yamauchi, K. Furuya (Miyazaki U.), K. Yamaoka (Nagoya U.) report on behalf of the MAXI team:
on 6 Aug 2016; 09:44 UT
Credential Certification: Yutaro Tachibana (tachibana@hp.phys.titech.ac.jp )

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The MAXI/GSC nova-alert system detected renewed X-ray activity from the low mass X-ray binary 4U 1608-52 (H 1608-522) at UT 11:30 on 2016 August 5 (MJD 57605). The 4-10 keV X-ray fluxes obtained with MAXI/GSC were 255 +- 17 mCrab averaged over four scan transits centered on 11:25 and 16:02 on August 5. Swift/BAT also detected the beginning of this outburst on August 5 (http://swift.gsfc.nasa.gov/docs/swift/results/transients/H1608-522/). This is the 7th outburst from the source since the long outburst in 2007-2009 (Linares et al. ATel #2264). The previous outbursts started on 2010 March 2 (ATel #2462, Asai et al. 2012), 2011 March 24 (ATel #3237, Asai et al 2012), 2012 October 10 (ATel #4478), 2013 May 27 (ATel #5094) ,2014 January 16 (ATel #5990) and 2014 October 7 (ATel #6550).