ToO observations of SGR 1806-20 in an active state

Details ToO observations of SGR 1806-20 in an active state ToO observations of SGR 1806-20 in an active state

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002cxo..prop.1363w&link_type=abstract

Chandra Proposal ID #04508149

Physics

Chandra Proposal Id #04508149

Scientific paper

SGRs are a class of high-energy transients that emit brief, intense bursts of soft gamma-rays. There is now strong evidence in support of the idea that SGRs (and AXPs) are magnetars. SGR 1900+14, SGR 1627-41 and the AXP 1E 2259+586 have shown that during epochs of intense burst activity, there are changes in the persistent and pulsed emission properties of the underlying X-ray source. Quantifying these changes has shed light on the burst mechanism and the consequences of bursts in magnetars. Details are given in the AO-4 and AO-5 proposals by Woods et al. SGR 1806-20 recently entered a new phase of activity. As yet there have been no detections of changes in the persistent emission of this source during periods of burst activity. The transient effects of burst activity seen in SGR 1900+14, SGR 1627-41 and 1E 2259+586 are markedly different. Given the low number of magnetars, it is important to study these transient effects whenever possible to better understand their nature.

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