100 citations · 194 across the 4 of their papers we have counts for
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Dynamical confirmation of a black hole in MAXI J1820+070
M. A. P. Torres, J. Casares, F. Jiménez-Ibarra +4
We present time-resolved 10.4-m GTC and 4.2-m WHT intermediate resolution spectroscopy of the X-ray transient MAXI J1820+070 (=ASASSN-18ey) obtained during its decline to the quies…
Accurate positions for the ULXs NGC 7319-X4 and NGC 5474-X1 and limiting magnitudes for their optical counterparts
M. Heida, P. G. Jonker, M. A. P. Torres +1
In this paper we report accurate Chandra positions for two ultraluminous X-ray sources: NGC 7319-X4 at Right Ascension (RA) = 339.02917(2) deg, Declination (Dec) = 33.97476(2) deg…
Chandra localisation and optical/NIR follow-up of Galactic X-ray sources
E. M. Ratti, C. G. Bassa, M. A. P. Torres +3
We investigate a sample of eleven Galactic X-ray sources recently discovered with INTEGRAL or RXTE with the goal of identifying their optical and/or near-infrared (NIR) counterpart…
A bright off-nuclear X-ray source: A bright off-nuclear X-ray source: a type IIn supernova, a bright ULX or a recoiling super-massive black hole in CXO J122518.6+144545
P. G. Jonker, M. A. P. Torres, A. C. Fabian +3
In this Paper we report the discovery of CXO J122518.6+144545; a peculiar X-ray source with a position 3.6+-0.2",off-nuclear from an SDSS DR7 z=0.0447 galaxy. The 3.6" offset corre…