5 papers · 1 filter
Model atmosphere analyses of post-common envelope stars
Mark T. Rushton, Barry Smalley, Richard N. Ogley +3
Understanding post-common-envelope evolution is important in the studies of close-binary systems. The majority of all interacting binaries with a compact object in their system (e.…
The joint XMM-Newton and Chandra view of YY Gem
B. Stelzer, V. Burwitz, R. Neuhaeuser +2
We have observed the flare star YY Gem simultaneously with XMM-Newton and Chandra as part of a multi-wavelength campaign aiming at a study of variability related to magnetic activi…
The luminosity function of QSO host galaxies
L. Wisotzki, B. Kuhlbrodt, K. Jahnke
We report on results from H band imaging observations of a complete sample of high-luminosity low-redshift QSOs. The luminosity function of QSO hosts is similar in shape to that of…
Cool helium-rich white dwarfs from the Hamburg/ESO Survey
S. Friedrich, D. Koester, N. Christlieb +2
We present an analysis of 40 cool helium-rich white dwarfs found in the Hamburg/ESO survey. They were selected for follow-up spectroscopy because of their U-B colour below -0.18, t…
EUVE Observations of clusters of galaxies: Virgo and M87
Thomas W. Berghoefer, Stuart Bowyer, Eric Korpela
We present results of a re-analysis of archival EUVE data of the central region of the Virgo cluster. We employ the new analysis method developed by Bowyer, Berghöfer & Korpela (19…