Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...169..259k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 169, no. 1-2, Nov. 1986, p. 259-267.
Astronomy and Astrophysics
Astrophysics
10
Emission Spectra, High Temperature Plasmas, Pulsars, Spectrum Analysis, Stellar Models, X Ray Stars, Compton Effect, Neutron Stars, Stellar Luminosity, Stellar Oscillations
Scientific paper
Calculations are presented of the phase dependent spectra of X-ray pulsars, which are modeled as having a simple slab geometry, one slab located at each magnetic pole of a rotating neutron star. Low luminosity sources are considered and the main source of photons is resonant double Compton scattering. The main difference between these results and those found with bremsstrahlung as the source of photons (Nagel, 1981) is that for a given luminosity the thickness of the slab is greatly reduced. Consequently, the model pulses have wider beam patterns, with an increased chance that an observer would see the central dips which occur when the line of sight approaches the magnetic axis.
Kirk John G.
Nagel Werner
Storey Michelle C.
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