Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...466..938f&link_type=abstract
Astrophysical Journal v.466, p.938
Astronomy and Astrophysics
Astronomy
19
Stars: Neutron, Stars: Pulsars: Individual Alphanumeric: Psr B1823-13, Ism: Supernova Remnants, X-Rays: Stars
Scientific paper
The young 21,000 yr old neutron star PSR B1823-13 was imaged by both the PSPC and HRI aboard ROSAT during 1993 and 1994. The data reveal that the morphology of PSR B1823-13 is similar to other neutron stars of a similar age. The pointlike neutron star component is found embedded in a compact nebula of radius ˜20" and surrounded by a low surface brightness diffuse emission region of extent ˜4'-5'. The diffuse extended component is consistent with the size expected for an associated remnant given the observed size of the compact nebula. Alternatively, the extended component may be a pulsar wind nebula and, if so, PSR B1823-13 cannot be a high-velocity neutron star unless it is embedded in an unusually rarefied region of the interstellar medium. Limits on the surface temperature of the bare neutron star are derived and compared with current models.
Finley John P.
Park Sangwook
Srinivasan Radhika
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