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Broadband X-ray spectral analysis of the Seyfert 1 galaxy GRS 1734-292
A. Tortosa, A. Marinucci, G. Matt +14
We discuss the broadband X-ray spectrum of GRS 1734-292 obtained from non-simultaneous XMM-Newton and NuSTAR observations, performed in 2009 and 2014, respectively. GRS1734-292 is…
Discovery and Modeling of a Flattening of the Positive Cyclotron Line/Luminosity Relation in GX 304-1 with RXTE
Richard E. Rothschild, Matthias Kuehnel, Katja Pottschmidt +8
The RXTE observed four outbursts of the accreting X-ray binary transient source, GX 304-1 in 2010 and 2011. We present results of detailed 3-100 keV spectral analysis of 69 separat…
An Iron K Component to the Ultrafast Outflow in NGC 1313 X-1
D. J. Walton, M. J. Middleton, C. Pinto +8
We present the detection of an absorpton feature at keV in the combined X-ray spectrum of the ultraluminous X-ray source NGC 1313 X-1 observed with XMM-New…
NuSTAR Observations of the Black Hole GS 1354-645: Evidence of Rapid Black Hole Spin
A. M. El-Batal, J. M. Miller, M. T. Reynolds +10
We present the results of a NuSTAR study of the dynamically confirmed stellar-mass black hole GS 1354-645. The source was observed during its 2015 "hard" state outburst; we concent…
The Soft State of Cygnus X-1 Observed with NuSTAR: A Variable Corona and a Stable Inner Disk
D. J. Walton, J. A. Tomsick, K. K. Madsen +17
We present a multi-epoch hard X-ray analysis of Cygnus X-1 in its soft state based on four observations with NuSTAR. Despite the basic similarity of the observed spectra, there is…