Location of Repository

Preprint typeset using L ATEX style emulateapj v. 02/07/07 LIMITS ON MASS AND RADIUS FOR THE MS-PERIOD X-RAY PULSAR SAX J1808.4-3658

By Denis A. Leahy, Sharon M. Morsink and Coire Cadeau

Abstract

We present an analysis of the light curves of SAX J1808.4-3658 during its 1998 and 2002 outbursts. We assume a hot spot model where the X-rays are originate from the surface of the neutron star. We obtain 80%, 90%, 2 σ and 3 σ limits on the mass and radius of SAX J1808.4-3658, which suggest a soft equation of state. At the 3 σ level, the radius must satisfy R < 11.9 km which rules out very stiff equations of state. At the 2 σ level, the radius must satisfy R < 11.6 km, ruling out equations of state with more moderate stiffness

Year: 2007
OAI identifier: oai:CiteSeerX.psu:10.1.1.317.6363
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://arxiv.org/pdf/astro-ph/... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.