William W. Craig

TL;DR: In this article, the authors report the results of a multi-band observing campaign on the famous blazar 3C 279 conducted during a phase of increased activity from 2013 December to 2014 April, including first observations of it with NuSTAR.

TL;DR: In this paper, the authors present 3-50keV NuSTAR observations of the active galactic nuclei Mrk 335 in a very low flux state and find that the spectra can be well fitted with relativistic reflection, and that the lowest flux state spectrum is described by reflection alone, suggesting the effects of extreme light bending occurring within ∼2 gravitational radii (RG) of the event horizon.

TL;DR: In this article, the authors report on the results of spectral fits made to a NuSTAR observation of the black hole GRS 1915+105 in a "plateau" state.

TL;DR: In this article, the authors present results from a joint NuSTAR and XMM-Newton observational campaign that, for the first time, allows a sensitive, time-resolved spectral analysis from 0.35 keV up to 80 keV.

TL;DR: In this article, the mass of the circumstellar material within 1e16 cm of the progenitor was estimated to be in excess of 10 solar masses, likely ejected tens of years prior to the supernova explosion.