Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..527b&link_type=abstract
(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews
Astronomy and Astrophysics
Astronomy
4
Exosat Satellite, Neutron Stars, Pulsars, Radio Sources (Astronomy), Stellar Structure, Thermal Radiation, Black Body Radiation, Bremsstrahlung, Free Electrons, Heao 2, Polar Caps
Scientific paper
The radio pulsar PSR 1055 - 52 was studied in order to detect thermal radiation from the surface of a neutron star. Einstein satellite observations of PSR 1055 - 52 fitted to different spectra are described. These results and observations of an extended source around PSR 1055 - 52 were used by Cheng and Helfand (1983) to develop the theory of a synchrotron nebula around the pulsar emitting a power-law X-ray spectrum. Exosat observations of the source and black body fit to the data are presented. The Alper et al. (1984) equation for determining radio pulsar temperature is given; the temperature for PSR 1055 - 52 was calculated to be approximately 340,000 K, which correlates well with the Exosat data. The idea of a thermally radiating neutron star was supported by the Exosat observations; however, the Cheng-Helfand theory was not confirmed.
Aschenbach Bernd
Brinkmann Wolfgang
Oegelman Hakki
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