THE DISCOVERY OF A PULSAR WIND NEBULA AROUND THE MAGNETAR CANDIDATE AXP 1E1547.0-5408
Journal Article
·
· Astrophysical Journal (Online)
- Astronomical Institute, Utrecht University, P.O. Box 80000, 3508TA Utrecht (Netherlands)
- Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin 2 (Ireland)
We report the detection of extended emission around the anomalous X-ray pulsar 1E1547.0-5408 using archival data of the Chandra X-ray satellite. The extended emission consists of an inner part, with an extent of 45'', and an outer part with an outer radius of 2.'9, which coincides with a supernova remnant shell previously detected in the radio. We argue that the extended emission in the inner part is the result of a pulsar wind nebula (PWN), which would be the first detected PWN around a magnetar candidate. Its ratio of X-ray luminosity versus pulsar spin-down power is comparable to that of other young PWNe, but its X-ray spectrum is steeper than most PWNe. We discuss the importance of this source in the context of magnetar evolution.
- OSTI ID:
- 21392567
- Journal Information:
- Astrophysical Journal (Online), Journal Name: Astrophysical Journal (Online) Journal Issue: 2 Vol. 707; ISSN 1538-4357
- Country of Publication:
- United States
- Language:
- English
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