The spin of the black hole microquasar XTE J1550−564 via the continuum-fitting and Fe-line methods

  title={The spin of the black hole microquasar XTE J1550−564 via the continuum-fitting and Fe-line methods},
  author={James F. Steiner and Rubens C. Reis and Jeffrey E. McClintock and Ramesh Narayan and Ronald A. Remillard and Jerome A. Orosz and Lijun Gou and Andrew C. Fabian and Manuel A P Torres},
  journal={Monthly Notices of the Royal Astronomical Society},
We measure the spin of XTE J1550−564 using the two leading methods: (i) modelling the thermal continuum spectrum of the accretion disc; and (ii) modelling the broad red wing of the reflection fluorescence Fe Kα line. We find that these two independent measurements of spin are in agreement. For the continuum-fitting analysis, we use a data sample consisting of several dozen Rossi X-ray Timing Explorer spectra, and for the Fe Kα analysis, we use a pair of ASCA spectra from a single epoch. Our… 
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