Multiplicity-study of exoplanet host stars

Details Multiplicity-study of exoplanet host stars Multiplicity-study of exoplanet host stars

Feb 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006tafp.conf..314m&link_type=abstract

"Tenth Anniversary of 51 Peg-b: Status of and prospects for hot Jupiter studies. Colloquium held at Observatoire de Haute Proven

Computer Science

1

Scientific paper

We carry out a systematic search campaign for wide companions of exoplanet host stars to study their multiplicity and its influence on the long-term stability and the orbital parameters of the exoplanets. We have already found 6 wide companions, raising the number of confirmed binaries among the exoplanet host stars to 20 systems. We have also searched for wide companions of Gl 86, the first known exoplanet host star with a white dwarf companion. Our Sofi/NTT observations are sensitive to substellar companions with a minimum-mass of 35 M_{Jup} and clearly rule out further stellar companions with projected separations between 40 and 670 AU.

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