Swift XRT follow-up of the transient magnetar CXO J1647-4552

Details Swift XRT follow-up of the transient magnetar CXO J1647-4552 Swift XRT follow-up of the transient magnetar CXO J1647-4552

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3653....1i&link_type=abstract

The Astronomer's Telegram, #3653

Astronomy and Astrophysics

Astronomy

X-Ray, Neutron Star, Soft Gamma-Ray Repeater, Transient, Variables, Pulsar

Scientific paper

We report on the preliminary results of the first Swift-XRT observations of the transient magnetar CXO J1647-4552 after the BAT detection of four SGR-like bursts (Baumgartner et al. GCN 12359). We analyzed the observation performed on 2011, September 20 carried out in PC mode (8.6ks of effective exposure time). Data were corrected for pile-up when necessary.
Preliminary spectral study of this observation found the source, at the beginning of the pointing, at a persistent flux of about 7.8 x 10^-11 ergs/cm^2/s (in the 1-10keV energy band), >100 times higher than the flux recorded during the latest observation carried out by XMM in August 2009 (in the same energy band), and >250 times with respect to the pre-outburst level observed in September 2006 by XMM (2.7 x 10^-13 ergs/cm^2/s, Muno et al.

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