An Iron K Component to the Ultrafast Outflow in NGC 1313 X-1

11 Jul 2016 Walton D. J. Middleton M. J. Pinto C. Fabian A. C. Bachetti M. Barret D. Brightman M. Fuerst F. Harrison F. A. Miller J. M. Stern D.

We present the detection of an absorpton feature at $E=8.77^{+0.05}_{-0.06}$ keV in the combined X-ray spectrum of the ultraluminous X-ray source NGC 1313 X-1 observed with XMM-Newton and NuSTAR, significant at the 3$\sigma$ level. If associated with blueshifted ionized iron, the implied outflow velocity is ~0.2$c$ for Fe XXVI, or ~0.25$c$ for Fe XXV... (read more)

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  • HIGH ENERGY ASTROPHYSICAL PHENOMENA
  • ASTROPHYSICS OF GALAXIES