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Architecture of Selected Planetary Systems: III. Direct Imaging Search for Outer Planets

Subject Area Astrophysics and Astronomy
Term from 2010 to 2014
Project identifier Deutsche Forschungsgemeinschaft (DFG) - Project number 168925145
 
Final Report Year 2016

Final Report Abstract

We have studied several sub-stellar companions around stars with debris disks in great detail: imaging photometry, astrometry, and spectroscopy. Given their mass constrains, they can be either planets or brown dwarfs. We could confirm their common proper motion connection to their host stars with larger significance. - We could show orbital motion for the first time (by curvature in the orbit). - We could constrain several orbital parameters. - We could constrain their masses better than before. - We have started to study the interaction of sub-stellar companions with outer debris disks. In the next years (maybe next decade), with a larger time epoch difference and even better telescopes and instruments (better astrometric precision), one will be able to constrain orbital parameters and the mass very precisely by a real orbital solution.

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