Discovery of a 65 Millisecond Pulsar in the Supernova Remnant G11.22–0.3 With [ITAL]ASCA[/ITAL]
Open Access
- 1 January 1997
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 489 (2) , L145-L148
- https://doi.org/10.1086/316798
Abstract
We report here the discovery of a 65 ms X-ray pulsar in the supernova remnant G11.2-0.3 with ASCA. The object is known to be a composite supernova remnant that shows both an extended shell component and a compact plerionic component. We have detected a sinusoidal pulsation with an amplitude of ~19% in the hard X-ray band (3-10 keV). The object has been proposed to be the historical remnant of the supernova of A.D. 386, which makes it the second candidate for the secure association of a pulsar and a historical supernova after the Crab Nebula and its pulsar.Keywords
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