108 citations · 776 across the 34 of their papers we have counts for
21 papers · 1 filter
Optical observations of candidate host galaxies of eight fast X-ray transients
Agnes P. C. van Hoof, Peter G. Jonker, Lieke Tommel +15
Fast X-ray transients (FXTs) are extragalactic flashes of X-rays with a typical duration of minutes to hours for which a variety of origins has been proposed and observed. To decip…
Revisiting the fundamental parameters for the black hole X-ray transient Swift J1753.5-0127
I. V. Yanes-Rizo, M. A. P. Torres, J. Casares +4
We present time-resolved Gran Telescopio Canarias optical spectroscopy and William Herschel Telescope -band photometry of the X-ray transient SWIFT J1753.5-0127 in quiescence. T…
Quiescent NIR and optical counterparts to candidate black hole X-ray binaries
K. M. López, P. G. Jonker, M. A. P. Torres +3
We present near-infrared and optical imaging of fifteen candidate black hole X-ray binaries. In addition to quiescent observations for all sources, we also observed two of these so…
The mass function of GX 339-4 from spectroscopic observations of its donor star
M. Heida, P. G. Jonker, M. A. P. Torres +1
We obtained 16 VLT/X-shooter observations of GX 339-4 in quiescence in the period May - September 2016 and detected absorption lines from the donor star in its NIR spectrum. This a…
Spectroscopic classification of X-ray sources in the Galactic Bulge Survey
T. Wevers, M. A. P. Torres, P. G. Jonker +14
We present the classification of 26 optical counterparts to X-ray sources discovered in the Galactic Bulge Survey. We use (time-resolved) photometric and spectroscopic observations…
A Systematic Search for Near-Infrared Counterparts of Nearby Ultraluminous X-ray sources (II)
K. M. López, M. Heida, P. G. Jonker +5
We present the results of our continued systematic search for near-infrared (NIR) candidate counterparts to ultraluminous X-ray sources (ULXs) within 10 Mpc. We observed 42 ULXs in…