124 citations · 857 across the 30 of their papers we have counts for
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astro-ph.HE2016★ 124 cited
From ultraluminous X-ray sources to ultraluminous supersoft sources: NGC 55 ULX, the missing link
C. Pinto, W. Alston, R. Soria +8
In recent work with high-resolution grating spectrometers (RGS) aboard XMM-Newton Pinto et al. (2016) have discovered that two bright and archetypal ultraluminous X-ray sources (UL…
astro-ph.HE2016★ 75 cited
A 78 Day X-ray Period Detected from NGC 5907 ULX1 by Swift
D. J. Walton, F. Fuerst, M. Bachetti +12
We report the detection of a day period in the X-ray lightcurve of the extreme ultraluminous X-ray source NGC 5907 ULX1 ( erg s$^{-1…
astro-ph.HE2016★ 56 cited
Keck/MOSFIRE spectroscopy of five ULX counterparts
M. Heida, P. G. Jonker, M. A. P. Torres +5
We present H-band spectra of the candidate counterparts of five ULXs (two in NGC 925, two in NGC 4136, and Holmberg II X-1) obtained with Keck/MOSFIRE. The candidate counterparts o…