Evidence for a low-luminosity X-ray pulsar associated with a supernova remnant

Details Evidence for a low-luminosity X-ray pulsar associated with a supernova remnant Evidence for a low-luminosity X-ray pulsar associated with a supernova remnant

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994a%26a...286l..47s&link_type=abstract

Astronomy and Astrophysics 286L, L47-L50 (1994)

Astronomy and Astrophysics

Astrophysics

29

X-Rays: Stars, Ism, Stars: Neutron, Ism: Supernova Remnants

Scientific paper

The discovery of two X-ray sources located in Serpens Cauda near the galactic plane at longitude l^II^~29deg consisting of a point source embedded in diffuse emission is reported here. The point source appears to be a pulsating neutron star (NS) with a period of about 5.45 s. An unidentified possible optical counterpart found in the Guide Star Catalogue (GSC) may point to a companion of the NS which together may form an X-ray binary star system. The diffuse X-ray emission, covering a region of 80'x50' on the sky, was identified by non-thermal radio radiation as supernova remnant (SNR). Both sources may have had a common origin in a supernova event, which occurred about 32000 years ago at a distance of at most 4 kpc. The image of the detection is shown in Fig. 1.

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