Other
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1279..391m&link_type=abstract
DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS. AIP Conference Proceedings, Volume 1279, pp. 391-393 (2010).
Other
X-Ray Sources (Astronomical), Astronomical Instruments, Gamma-Ray Sources (Astronomical), X-Ray Sources, X-Ray Bursts, Astronomical And Space-Research Instrumentation, Gamma-Ray Sources, Gamma-Ray Bursts
Scientific paper
The Monitor of All-sky X-ray Image (MAXI) is the unprecedentedly sensitive all-sky X-ray monitor. Gas Slit Camera (GSC) of MAXI is sensitive for 2-30 keV bands and sweeps almost the whole sky once every 90 minutes with long narrow fields of view (FoV). We developed the PSF(Point Spread Function)-fitting method for the scanning data of MAXI/GSC to calculate the position and flux of X-ray point sources. This method is useful both to determine the position of a transient source like GRBs and to calculate the fluxes of sources located in a crowded region. For transients whose duration is shorter than one scan (about 30 sec-4 min), other method is applied to determine the position without assumption of constancy of X-ray flux. The locations of two short X-ray transients discovered by MAXI/GSC (ATel No.2321 and No.2415) were determined by these methods.
Kawai Nobuyuki
Matsuoka Masaru
Mihara Tatehiro
Morii Masahiro
Nakajima Motoki
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