Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005atel..407....1w&link_type=abstract
The Astronomer's Telegram, #407
Astronomy and Astrophysics
Astronomy
5
X-Ray, Neutron Stars, Soft Gamma-Ray Repeaters
Scientific paper
The Soft Gamma Repeater SGR 1806-20 emitted a giant flare that was recorded on 2004 December 27 (GCN 2920). We triggered an ongoing sequence of ToO observations of the SGR with RXTE that began on 2005 January 22, the earliest RXTE could observe due to Sun-angle constraints. We find no evidence for a sudden change in spin frequency of the SGR following this flare and place a limit on such a frequency jump of |delta nu| < 2 x 10^-5 Hz.
Finger Mark
Gogus Ersin
Hurley Kevin
Kouveliotou Chryssa
Patel Sandy
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