Geometrical constraints from the X-ray emission of PSR 0656+14.

Details Geometrical constraints from the X-ray emission of PSR 0656+14. Geometrical constraints from the X-ray emission of PSR 0656+14.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996rftu.proc..179p&link_type=abstract

International Conference on X-ray Astronomy and Astrophysics: Röntgenstrahlung from the Universe, p. 179 - 180

Astronomy and Astrophysics

Astrophysics

1

Pulsars: X-Ray Light Curves, Pulsars: X-Ray Spectra, Neutron Stars

Scientific paper

The authors have modelled the ROSAT X-ray light curves and spectra of PSR 0656+14 to discriminate between the possible geometrical configurations derived from radio data. The relatively small dipole inclination (≡8°) proposed by Lyne and Manchester (1988) in not compatible with this model. A greater angle between the magnetic and rotation axis (≡30°), as proposed by Rankin (1993), can reproduce the observed pulsed fraction, both in the soft and hard X-ray energy band, but only if the neutron star mass is ≅1 Msun. For a typical neutron star mass of 1.4 Msun, none of the geometrical configurations can account for the observed modulation within the authors' model.

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