THE COMPLEX ACCRETION GEOMETRY OF GX 339–4 AS SEEN BY NuSTAR AND SWIFT

@article{Fuerst2015THECA,
  title={THE COMPLEX ACCRETION GEOMETRY OF GX 339–4 AS SEEN BY NuSTAR AND SWIFT},
  author={Felix Fuerst and Michael A. Nowak and John A. Tomsick and J. Mitchell Miller and St{\'e}phane Corbel and Matteo Bachetti and Steven E. Boggs and F. E. Christensen and William W. Craig and Andrew C. Fabian and Poshak Gandhi and Victoria Grinberg and Charles James Hailey and Fiona A. Harrison and Erin Kara and Jamie A. Kennea and Kristin K. Madsen and Katja Pottschmidt and Daniel Stern and Dominic J. Walton and J{\"o}rn Wilms and W. W. Zhang},
  journal={The Astrophysical Journal},
  year={2015},
  volume={808},
  pages={122}
}
We present spectral analysis of five NuSTAR and Swift observations of GX 339−4 taken during a failed outburst in summer 2013. These observations cover Eddington luminosity fractions in the range ≈0.9–6%. Throughout this outburst, GX 339−4 stayed in the hard state, and all five observations show similar X-ray spectra with a hard power-law with a photon index near 1.6 and significant contribution from reflection. Using simple reflection models we find unrealistically high iron abundances… Expand
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