Berlin 2005 – wissenschaftliches Programm
EP 15.4: Vortrag
Mittwoch, 9. März 2005, 09:30–09:45, TU BH349
Towards diect detection of young exo-planets — •Ralph Neuhaeuser1, Eike Guenther2, Guenther Wuchterl1 und Markus Mugrauer1 — 1AIU Jena — 2TLS Tautenburg
Since several years, we obtain deep, high-resolution imaging observations of the surroundings of young (up to 100 Myrs) nearby (up to 150 pc) stars in order to detect sub-stellar companions directly, both brown dwarfs and massive planets. Young stars are good targets, because their companions are also young and, hence, self-luminous due to ongoing contraction. For the observations, we used the speckle camera Sharp at the ESO 3.5m NTT and more recently the AO camera NaCo at the ESO 8.2m VLT. So far, several brown dwarfs were found and confirmed by astrometry, photometry, and spectroscopy. We will now also present the first two candidates for planets detected diretly, one in the TW Hya association, and one in the Lupus star forming region.