Article
Astrophysical Journal  (2013)

AN EXTREMELY LUMINOUS AND VARIABLE ULTRALUMINOUS X-RAY SOURCE IN THE OUTSKIRTS OF CIRCINUS OBSERVED WITH NuSTAR

Walton, DJ; Fuerst, F; Harrison F., Stern D.; Bachetti, M; Barret D., Bauer; F., Boggs; SE, Christensen; FE, Craig; WW, Fabian; AC, Grefenstette; BW, Hailey; CJ, Madsen; KK, Miller; JM, Ptak; A, Rana; V, Webb; NA, Zhang