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astro-ph2008
Interior matter estimates of the X-ray pulsar in SAX J1808.4-3658 from mass-radius and rotation measurements
Nana Pan, Li Zhang, Xiaoping Zheng
To constrain the equation of state of super-nuclear density matter and probe the interior composition of the X-ray pulsar in SAX J1808.4-3658. In our estimation, we consider both i…
astro-ph2007
1122 Hz rotation of XTE J1739-285 as a probe of quark matter in the interior of the neutron star
Xiaoping Zheng, Nana Pan, Li Zhang
The recent discovery of burst oscillation at 1122Hz in the X-ray transient XTE J1739-285 supports the suggestion that it contains a submillisecond pulsar. In our estimations of the…