Soft X-ray observations of the VELA pulsar PSR 0833-45

Details Soft X-ray observations of the VELA pulsar PSR 0833-45 Soft X-ray observations of the VELA pulsar PSR 0833-45

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...214..179o&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 214, no. 1-2, April 1989, p. 179-185. Research supported by DFG.

Astronomy and Astrophysics

Astronomy

31

Nebulae, Pulsars, X Ray Astronomy, Astronomical Maps, Black Body Radiation, Exosat Satellite, Neutron Stars

Scientific paper

X-ray maps produced from Exosat observations of the Vela pulsar in the 0.03-2.4 keV range confirm the components discussed by Harnden et al. (1985). Restricting the central source to a neutron star with an 8-15 km radium emitting blackbody-like radiation suggests a surface temperature in the 600,000 to 1,000,000 K. It is found that the observed blackbody-like luminosity may be generated by reheating via vortex creep in the crust of the neutron star. A search for pulsations at the radio period produced a pulsed fraction upper limit of less than 15 percent of the point-like component. The possible association of the Vela pulsar and a B9V star is considered.

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