ASCA Observation of the quiescent X-ray counterpart to SGR1627-41

Abstract

We present a 2 - 10 keV ASCA observation of the field around the soft gamma repeater SGR1627-41. A quiescent X-ray source was detected in this observation whose position was consistent both with that of a recently discovered BeppoSAX X-ray source and with the Interplanetary Network localization for this SGR. In 2 - 10 keV X-rays, the spectrum of the X-ray source may be fit equally well by a power law, blackbody, or bremsstrahlung function, with unabsorbed flux ~5 x 10^-12 erg cm^-2 s^-1. We do not confirm a continuation of a fading trend in the flux, and we find no evidence for periodicity, both noted in the earlier BeppoSAXobservations.

Submitted to Astrophysical Journal Letters

References in corpus (3)

• Discovery of a New Soft Gamma Repeater, SGR 1627-41
• Is SGR 1900+14 a Magnetar?
• Precise Interplanetary Network Localization of a New Soft Gamma Repeater, SGR1627-41

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• Konus catalog of SGR activity to 2000
• Limits from the Hubble Space Telescope on a Point Source in SN 1987A
• Spatial, Temporal and Spectral Properties of X-ray Emission from the Magnetar SGR~0501+4516
• A Search for New Galactic Magnetars in Archival Chandra and XMM-Newton Observations
• The 2001 April Burst Activation of SGR 1900+14: X-ray afterglow emission
• Implications of the Narrow Period Distribution of Anomalous X-ray Pulsars and Soft Gamma-Ray Repeaters
• Behavior of Torsional Alfven Waves and Field Line Resonance on Rotating Magnetars