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The NuSTAR Serendipitous Survey: The 40 month Catalog and the Properties of the Distant High Energy X-ray Source Population
G. B. Lansbury, D. Stern, J. Aird +35
We present the first full catalog and science results for the NuSTAR serendipitous survey. The catalog incorporates data taken during the first 40 months of NuSTAR operation, which…
Coronal properties of the luminous radio-quiet quasar QSO B2202209
E. S. Kammoun, G. Risaliti, D. Stern +8
We present an analysis of the joint - and observations of the radio-quiet quasar QSO B2202209. Using an optical observation from the Hale Telescope at the…
The nova-like nebular optical spectrum of V404 Cygni at the beginning of the 2015 outburst decay
F. Rahoui, J. A. Tomsick, P. Gandhi +7
We report on FORS2 optical spectroscopy of the black hole X-ray binary V404 Cygni, performed at the very beginning of its 2015 outburst decay, complemented by quasi-simultaneous $S…
Discovery of coherent pulsations from the Ultraluminous X-ray Source NGC 7793 P13
F. Fuerst, D. J. Walton, F. A. Harrison +12
We report the detection of coherent pulsations from the ultraluminous X-ray source NGC 7793 P13. The ~0.42s nearly sinusoidal pulsations were initially discovered in broadband X-ra…
Spectral Changes in the Hyperluminous Pulsar in NGC 5907 as a Function of Super-Orbital Phase
F. Fuerst, D. J. Walton, D. Stern +5
We present broad-band, multi-epoch X-ray spectroscopy of the pulsating ultra-luminous X-ray source (ULX) in NGC 5907. Simultaneous XMM-Newton and NuSTAR data from 2014 are best des…
Detection of Very Low-Frequency Quasi-Periodic Oscillations in the 2015 Outburst of V404 Cygni
D. Huppenkothen, G. Younes, A. Ingram +12
In June 2015, the black hole X-ray binary (BHXRB) V404 Cygni went into outburst for the first time since 1989. Here, we present a comprehensive search for quasi-periodic oscillatio…