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Light Curves for Rapidly-Rotating Neutron Stars

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arxiv astro-ph/0609325 v1 pith:HQLKYWOV submitted 2006-09-12 astro-ph

Coire Cadeau , Sharon M. Morsink , Denis Leahy , Sheldon S. Campbell This is my paper · ORCID
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keywords starneutronlightrapidly-rotatingcurvesfindoblaterotating
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We present raytracing computations for light emitted from the surface of a rapidly-rotating neutron star in order to construct light curves for X-ray pulsars and bursters. These calculations are for realistic models of rapidly-rotating neutron stars which take into account both the correct exterior metric and the oblate shape of the star. We find that the most important effect arising from rotation comes from the oblate shape of the rotating star. We find that approximating a rotating neutron star as a sphere introduces serious errors in fitted values of the star's radius and mass if the rotation rate is very large. However, in most cases acceptable fits to the ratio M/R can be obtained with the spherical approximation.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Pulse profile modelling of the 2024 outburst of the accreting millisecond pulsar SRGA J144459.2-604207

    astro-ph.HE 2026-05 conditional novelty 5.0 of 10

    Joint NICER+IXPE pulse-profile modeling of SRGA J144459.2-604207 favors large neutron-star mass and radius with two independent hotspots but shows strong sensitivity to joint-analysis methodology.

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