902 citations · 15.6k across the 311 of their papers we have counts for
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astro-ph2004
Multiwavelength Observations of Ultraluminous X-Ray Sources
Philip Kaaret
Multiwavelength observations may help us understand the physical nature of the ultraluminous X-ray sources (ULXs) found in external galaxies. Enabled by the arcsecond X-ray source…
astro-ph2004★ 180 cited
High Resolution Imaging of the HeII lambda 4686 Emission Line Nebula Associated with the Ultraluminous X-Ray Source in Holmberg II
P. Kaaret, M. J. Ward, A. Zezas
We present Hubble Space Telescope images of the He{\sc iii} region surrounding the bright X-ray source in the dwarf irregular galaxy Holmberg II. Using {\it Chandra}, we find a pos…
astro-ph2004★ 60 cited
The Low Quiescent X-Ray Luminosity of the Neutron Star Transient XTE J2123-058
John A. Tomsick, Dawn M. Gelino, Jules P. Halpern +1
We report on the first X-ray observations of the neutron star soft X-ray transient (SXT) XTE J2123-058 in quiescence, made by Chandra and BeppoSAX, as well as contemporaneous optic…