4 papers · 1 filter
An X-ray flare from the Lindroos binary system HD 560
B. Stelzer, N. Huelamo
We report on a large X-ray flare from the Lindroos binary system HD 560 during a pointed ROSAT PSPC observation. Strong magnetic activity is expected for the late-type component (a…
Direct imaging search for planetary companions next to young nearby stars
R. Neuhaeuser, E. Guenther, W. Brandner +6
We report first results from our ground-based infrared imaging search for sub-stellar companions (brown dwarfs and giant planets) of young (up to 100 Myrs) nearby (up to 75 pc) sta…
Spectrum and proper motion of a brown dwarf companion of the T Tauri star CoD-33 7795
R. Neuhaeuser, E. W. Guenther, M. G. Petr +3
We present optical and infrared spectra as well as the proper motion of an H=12 mag object 2" off the ~5 mag brighter spectroscopic binary star CoD-33 7795 (=TWA-5), a member of th…
X-ray emission from Lindroos binary systems
N. Huelamo, R. Neuhaeuser, B. Stelzer +2
We present a study of the X-ray emission from binary systems extracted from the Lindroos catalogue (Lindroos 1986) based on the ROSAT All-Sky survey as well as ROSAT PSPC and HRI p…