Spin Period of New Soft Gamma Repeater SGR 0501+4516

Details Spin Period of New Soft Gamma Repeater SGR 0501+4516 Spin Period of New Soft Gamma Repeater SGR 0501+4516

Aug 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008atel.1677....1g&link_type=abstract

The Astronomer's Telegram, #1677

Astronomy and Astrophysics

Astronomy

11

X-Ray, Pulsars, Soft Gamma-Ray Repeaters

Scientific paper

We triggered our SGR ToO Program with RXTE following the Swift detection of a burst from the new Soft Gamma Repeater SGR 0501+4516 (Barthelmy et al. 2008, GCN # 8113). A 600 s RXTE observation started on 2008 August 22, 16:39:09 UT. During this pointing we detected one short SGR burst- like event in the PCA data (2-60 keV), confirming that the new source was in the field of view. We searched for a spin period for the new SGR in the 2.5-13.5 keV band PCA event mode data and detected a coherent signal (barycenter corrected) at 0.17334 Hz, corresponding to a spin period of 5.769 ± 0.004 s.

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