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On the absence of wind bow-shocks around OB-runaway stars: probing the physical conditions of the interstellar medium
Fredrik Huthoff, Lex Kaper
High-resolution IRAS maps are used to search for the presence of stellar-wind bow-shocks around high-mass X-ray binaries (HMXBs). Their high space velocities, recently confirmed wi…
The host galaxy of GRB010222: The strongest damped Lyman-alpha system known
I. Salamanca, L. Kaper, P. M. Vreeswijk +6
Analysis of the absorption lines in the afterglow spectrum of the gamma-ray burst GRB010222 indicates that its host galaxy (at a redshift of z=1.476) is the strongest damped Lyman-…
Strategies for prompt searches for GRB afterglows: the discovery of the GRB 001011 optical/near-infrared counterpart using colour-colour selection
J. Gorosabel, J. U. Fynbo, J. Hjorth +25
We report the discovery of the optical and near-infrared counterparts to GRB 001011. The GRB 001011 error box determined by Beppo-SAX was simultaneously imaged in the near-infrared…
Modelling the orbital modulation of ultraviolet resonance lines in high-mass X-ray binaries
Jacco Th. van Loon, Lex Kaper, Godelieve Hammerschlag-Hensberge
The stellar-wind structure in high-mass X-ray binaries (HMXBs) is investigated through modelling of their ultraviolet (UV) resonance lines. For the OB supergiants in two systems, V…
The origin of the runaway high-mass X-ray binary HD153919/4U1700-37
A. Ankay, L. Kaper, J. H. J. de Bruijne +3
Based on its Hipparcos proper motion, we propose that the high-mass X-ray binary HD153919/4U1700-37 originates in the OB association Sco OB1. At a distance of 1.9 kpc the space vel…