Other
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21533906a&link_type=abstract
American Astronomical Society, AAS Meeting #215, #339.06; Bulletin of the American Astronomical Society, Vol. 42, p.444
Other
Scientific paper
Ground based astrometry hasn't been very successful in detecting extrasolar planets. The reasons for that is the relatively long time baselines required, instrumental stability requirements and calibration related issues. In addition to that, the number of free parameters is large compared to other methods (such as radial velocities) and additional information is often required to constrain the true nature of the candidate signals. An example is the recently announced astrometric detection of a planet around the low mass star VB10, where a careful reanalysis of the data with existing Doppler measurements casts some doubts on the true nature of the announced low mass companion. Follow-up observations on this object (both astrometric and spectroscopic) have been obtained. We present the results of this campaign and a detailed analysis of the allowed orbital solutions which confirm/rule out the presence of this candidate.
Anglada-Escude Guillem
Osip Dave
Shkolnik Evgenya
Thompson Ian
Weinberger Alycia
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