3 papers
astro-ph2000
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…
astro-ph2000
X-ray flares on zero-age- and pre-main sequence stars in Taurus-Auriga-Perseus
B. Stelzer, R. Neuhaeuser, V. Hambaryan
We present results of a systematic search for X-ray flares on young stars observed during ROSAT PSPC observations of the Taurus-Auriga-Perseus region. All pointed PSPC observations…
astro-ph1999
On the possibility of ground-based direct imaging detection of extra-solar planets: The case of TWA-7
R. Neuhaeuser, W. Brandner, A. Eckart +5
We show that {\em ground-based} direct imaging detection of extra-solar planets is possible with current technology. As an example, we present evidence for a possible planetary com…