Discovery of a compact X-ray source at the center of the supernova remnant RCW 103

Details Discovery of a compact X-ray source at the center of the supernova remnant RCW 103 Discovery of a compact X-ray source at the center of the supernova remnant RCW 103

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...239l.107t&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 239, Aug. 1, 1980, p. L107-L110.

Astronomy and Astrophysics

Astrophysics

87

Astronomical Observatories, Neutron Stars, Point Sources, Pulsars, Supernova Remnants, X Ray Sources, Black Body Radiation, Gamma Rays, Radio Emission, Thermal Radiation

Scientific paper

A point source of X-ray emission has been detected at the center of the supernova remnant RCW 103 using the Einstein Observatory. The 10 arcsec radius error circle is centered at alpha 16h13m47.8s, delta = -50 deg 55 arcmin 05 arcsec (1950) and contains two candidate stars of approximately 20th magnitude. No coincident point source of radio emission is known, but it is pointed out that the X-ray object lies 1.2 deg away from the centroid position of a gamma-ray source, CG 333 + 0. The observed flux from the object at the earth is approximately 7 x 10 to the -13th ergs/sq cm s in the 0.6-2 keV band. It is likely that the object is either a hot neutron star or an X-ray emitting pulsar. In contrast to the Crab and Vela pulsars, however, no extended X-ray emission associated with the point source is discernible. If the object is a hot neutron star, it has a blackbody temperature of 2 x 10 to the 6th K, and would represent the first detection of surface radiation from a neutron star.

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