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Far Ultraviolet observations of the High Mass X-ray Binary 4U1700-37/HD153919
R. C. Iping, G. Sonneborn, L. Kaper +1
The high-mass X-ray binary 4U1700-37/HD153919 has been observed with FUSE to study the effect of the X-ray source on the stellar wind of the primary. Phase dependent changes in the…
XMM-Newton X-ray spectroscopy of the high-mass X-ray binary 4U1700-37 at low flux
A. van der Meer, L. Kaper, T. Di Salvo +4
We present results of a monitoring campaign of the high-mass X-ray binary system 4U 1700-37/HD 153919, carried out with XMM-Newton in February 2001. The system was observed at four…
Phase-dependent changes in the wind lines in the HMXRB's SMC X-1 and 4U1700-37
R. C. Iping, G. Sonneborn, L. Kaper +1
The High Mass X-ray Binaries (HMXRB's) SMC X-1 and 4U1700-37 have been observed with FUSE to study the effect of the X-ray source on the stellar wind of the primary. In both system…
The Primordial Binary Population - I: A near-infrared adaptive optics search for close visual companions to A star members of Scorpius OB2
M. B. N. Kouwenhoven, A. G. A. Brown, H. Zinnecker +2
We present the results of a near-infrared adaptive optics survey with the aim to detect close companions to Hipparcos members in the three subgroups of the nearby OB association Sc…
Diffuse Interstellar Bands in NGC 1448
Jesper Sollerman, Nick Cox, Seppo Mattila +4
We present spectroscopic VLT/UVES observations of two emerging supernovae, the Type Ia SN 2001el and the Type II SN 2003hn, in the spiral galaxy NGC 1448. Our high resolution and h…
On the Hipparcos parallaxes of O stars
S. E. Schroeder, L. Kaper, H. J. G. L. M. Lamers +1
We compare the absolute visual magnitude of the majority of bright O stars in the sky as predicted from their spectral type with the absolute magnitude calculated from their appare…