6 citations · 6 across the 3 of their papers we have counts for
5 papers
Discovery of A Compact X-ray Object with A 614s Periodicity in the Direction of the Galactic center
Hang Gong
We report on analysis of X-ray, optical and radio observations of the previously overlooked X-ray source 2CXO\,J174517.0321356 located just 3.2 away from the Galactic…
Discovery of An X-ray Photoionized Optical Nebula and A Radio Nebula Associated with the ULX NGC 4861 X-1
Hang Gong, Ryan Urquhart, Alexandr Vinokurov +5
We have conducted long-slit spectroscopic observations and analyzed archival radio data for the ultraluminous X-ray source (ULX) NGC 4861 X-1. Our spectral line analysis unveils th…
Close-in Exoplanets as Candidates of Strange Quark Matter Objects
Abudushataer Kuerban, Jin-Jun Geng, Yong-Feng Huang +2
Since the true ground state of the hadrons may be strange quark matter (SQM), pulsars may actually be strange stars rather than neutron stars. According to this SQM hypothesis, str…
Time-Variable Aluminum Absorption in the Polar AR Ursae Majoris, and an Updated Estimate for the Mass of the White Dwarf
Yu Bai, Stephen Justham, JiFeng Liu +3
We present spectra of the extreme polar AR Ursae Majoris (AR UMa) which display a clear Al I absorption doublet, alongside spectra taken less than a year earlier in which that feat…
Three X-ray Flares Near Primary Eclipse of the RS CVn Binary XY UMa
Hang Gong, Rachel Osten, Thomas Maccarone +3
We report on an archival X-ray observation of the eclipsing RS CVn binary XY UMa ( 0.48d). In two ACIS observations spanning 200 ks and almost…