Continued X-ray Monitoring of Magnetar Candidate SWIFT J1822.3-1606

Details Continued X-ray Monitoring of Magnetar Candidate SWIFT J1822.3-1606 Continued X-ray Monitoring of Magnetar Candidate SWIFT J1822.3-1606

Aug 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011atel.3553....1s&link_type=abstract

The Astronomer's Telegram, #3553

Astronomy and Astrophysics

Astronomy

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

Scientific paper

We report on Swift/XRT and RXTE/PCA observations of the new 8.4-s Galactic magnetar candidate SWIFT J1822.3-1606, also referred to as SGR J1822.3-1606 (ATELs #3488, #3489, #3490, #3493, #3495, #3496, #3501, #3503, #3543). The persistent X-ray flux from the source continues to fade in ongoing XRT monitoring observations. For data in the MJD range 55757 to 55781, the best-fit power-law index, alpha, for the decay of the absorbed 1-10 keV flux is -0.47 ± 0.02, assuming a decay of functional form F(t) = F0 + F0*(t-T)^alpha, where T is the epoch of the Swift/BAT trigger (ATEL #3488).

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