72 citations · 119 across the 11 of their papers we have counts for
7 papers · 1 filter
Estimating the Spins of Stellar-Mass Black Holes by Fitting Their Continuum Spectra
Ramesh Narayan, Jeffrey E. McClintock, Rebecca Shafee
We have used the Novikov-Thorne thin disk model to fit the continuum X-ray spectra of three transient black hole X-ray binaries in the thermal state. From the fits we estimate the…
Fast X-ray Oscillations During Magnetar Flares
Tod E. Strohmayer
The giant flares produced by highly magnetized neutron stars, "magnetars," are the brightest sources of high energy radiation outside our solar system. Serendipitous observations w…
Recycling Matter in the Universe. X-ray observations of SBS 1150+599A (PN G135.9+55.9)
Gagik Tovmassian, John Tomsick, Ralf Napiwotzki +4
We present X-ray observations of the close binary nucleus of the planetary nebula SBS 1150+599A obtained with the XMM-Newton satellite. Only one component of the binary can be obse…
Radio and gamma-ray emissions from pulsars: possible observational tests
G. J. Qiao, K. J. Lee, H. G. Wang +2
Many models for the pulsar radio and -ray emissions have been developed. The tests for these models using observational data are very important. Tests for the pulsar radio emiss…
PSR B1257+12: a quark star with planets?
Youling Yue, Renxin Xu
A recent observation has shown that PSR B1257+12 could have quite small X-ray emitting area, only about 2000 m, which is more than three orders smaller than the canonical polar…
Possible evidence that pulsars are quark stars
Renxin Xu
It is a pity that the real state of matter in pulsar-like stars is still not determined confidently because of the uncertainty about cold matter at supranuclear density, even 40 ye…