Orbits and Masses in the T Tauri System (2008)
Köhler, Rainer, Ratzka, Thorsten, Herbst, T. M., Kasper, Markus
We investigate the binary star T Tauri South, presenting the orbital parameters of the two components and their individual masses. We combined astrometric positions from the literature with...
Simulations of imperfect PRIMA fringe sensing units and calibration strategies (2008)
Geisler, Ronny, Elias, Nicholas M., Quirrenbach, Andreas, Köhler, Rainer, Tubbs, Robert N., Henning, Thomas, ...
The PRIMA (Phase-Referenced Imaging and Microarcsecond Astrometry) instrument at ESO/VLTI is scheduled for commissioning in late 2008. It is designed for phased-referenced imaging and narrow-angle...
The astrometric data-reduction software for exoplanet detection with PRIMA (2008)
Elias, Nicholas M., Köhler, Rainer, Stilz, Ingo, Reffert, Sabine, Geisler, Ronny, Quirrenbach, Andreas, ...
PRIMA/PACMAN is scheduled for commissioning on Paranal in late 2008 as part of the VLTI. In this paper, we discuss the important aspects of its astrometric data-reduction software. For example, the...
Christou, Julian C., Pugliese, Giovanna, Köhler, Rainer, Drummond, Jack D.
We have compared three techniques-StarFinder, IDAC (Iterative Deconvolution Algorithm in C), and parametric blind deconvolution (PBD)-for extracting photometry and astrometry of stars in densely...
Doppelsternhäufigkeit unter röntgenselektierten T-Tauri-Sternen (2000)
Wir stellen die Ergebnisse einer Durchmusterung nach Doppelsternen vonröntgenselektierten T Tauri Sternen in den SternentstehungsgebietenTaurus-Auriga und Scorpius-Centaurus vor. Die Sterne wurden...
Doppelsternhäufigkeit unter röntgenselektierten T-Tauri-Sternen (1997)
Wir stellen die Ergebnisse einer Durchmusterung nach Doppelsternen von röntgenselektierten T Tauri Sternen in den Sternentstehungsgebieten Taurus-Auriga und Scorpius-Centaurus vor. Die Sterne wurden...