GRBlog: GCN 1046

Search matched 1 messages (refine search)
Displaying messages 1 to 1

Chandra Observations of SGR 1900+14	Kouveliotou, Tennant, & Weisskopf
	GCN 1046

SOURCE: GCN
TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 1046
SUBJECT: Chandra Observations of SGR 1900+14
DATE: 01/04/24 00:00:36 GMT
FROM: Chryssa Kouveliotou at MSFC <kouveliotou@eagles.msfc.nasa.gov>

C. Kouveliotou, A. F. Tennant, and M. C. Weisskopf (NASA/MSFC), report on behalf of a large SGR collaboration:

Chandra observed the newly active (GCN 1041) Soft Gamma Repeater, SGR 1900+14, on April 22, 2001 starting at 4:45 UT, for 20000 seconds. The ACIS S3 observation mode was Continuous Clocking (CC). We have fitted a spectrum to the whole data set; we find the best fit to be a single power law with spectral (photon) index of 2.9 +/- 0.1 and a hydrogen column density (NH) of (3.4 +/- 0.1)x10^22 cm^-2. We detect no black body contribution in the spectrum. The source (unabsorbed) flux is 1.1E-11 ergs/cm^2 s (2-10 keV), nearly identical to the quiescent source flux level. The pulse period is 5.1725 s (barycenter corrected); the pulse profile appears sinusoidal.

More detailed analysis and comparison with RXTE simultaneous observations is underway.

...

Cited by 4 messages

X-Ray Observations

GRB_ID	OBSDATE (UT)	T_BURST	EXP	MIN_KEV	MAX_KEV	FLUX (erg cm-2 s-1)	EFLUX	UPLIM
	2001 Apr 22 04:45:00		20000 sec	2	10	1.1E-11		no

GRBlog
Blog for Gamma Ray Bursts	View From Type Sort By