83 citations · 251 across the 9 of their papers we have counts for
5 papers · 1 filter
Constraining soft and hard X-ray irradiation in ultraluminous X-ray sources
Yanli Qiu, Hua Feng
Most ultraluminous X-ray sources (ULXs) are argued to be powered by supercritical accretion onto compact objects. One of the key questions regarding these objects is whether or not…
Linking soft excess in ultraluminous X-ray sources with optically thick wind driven by supercritical accretion
Yanli Qiu, Hua Feng
Supercritical accretion onto compact objects may drive massive winds that are nearly spherical, optically thick, and Eddington limited. Blackbody emission from the photosphere is t…
CG X-1: an eclipsing Wolf-Rayet ULX in the Circinus galaxy
Yanli Qiu, Roberto Soria, Song Wang +7
We investigated the time-variability and spectral properties of the eclipsing X-ray source Circinus Galaxy X-1 (GG X-1), using Chandra, XMM-Newton and ROSAT. We phase-connected the…
Monitoring of the eclipsing Wolf-Rayet ULX in the Circinus galaxy
Yanli Qiu, Roberto Soria
We studied the eclipsing ultraluminous X-ray source CG X-1 in the Circinus galaxy, re-examining two decades of {\it Chandra} and {\it XMM-Newton} observations. The short binary per…
Does the 62-day X-ray periodicity come from ULX M82 X-1?
Yanli Qiu, JiFeng Liu, Jincheng Guo +1
M82 X-1 is the brightest ultraluminous X-ray source in starburst galaxy M82 and is one of the best intermediate mass black hole candidates. Previous studies based on the Rossi X-ra…