SGR 1900+14
Abstract
R. Remillard, D. A. Smith, and A. Levine, Massachusetts Institute of Technology (MIT), report on behalf of the RXTE/ASM teams at MIT and at NASA/GSFC: "The RXTE All Sky Monitor has detected an x-ray flare at a location consistent (+/- 0o.2 deg) with the position of the candidate x-ray counterpart for SGR 1900+14 (Hurley et al. 1996, Ap.J. 463, L13). Two consecutive detections were made in each of two cameras on Aug. 27, showing a 2-12-keV intensity of 78 +/- 12 mCrab at Aug. 27.5174 UT and 114 +/- 11 mCrab at Aug. 27.5185. During the preceeding week, there were no significant detections made, and on Aug. 26, the average of 13 measurements implies a 3-sigma upper limit of 14 mCrab. On the day following the flare, seven measurements indicate a mean intensity 18 +/- 5 mCrab. During all of the 90-s exposures associated with ASM detections, the time-series data indicate steady emission with no evidence of SGR bursts."
- Publication:
-
International Astronomical Union Circular
- Pub Date:
- August 1998
- Bibcode:
- 1998IAUC.7002....2R