New wide stellar companions of exoplanet host stars. Issue 1 (4th February 2014)

• Record Type: Journal Article
• Authors: Mugrauer, M.; Ginski, C.; Seeliger, M.
• Is Part Of: Monthly notices of the Royal Astronomical Society. Volume 439:Issue 1(2014)
• Page Start: 1063
• Page End: 1070
• Publication Date: 2014-02-04
• Subjects: binaries: visual; Astronomy -- Periodicals; Periodicals; 520.5
• DOI: 10.1093/mnras/stu044
• Languages: English
• ISSNs: 0035-8711

Abstract

Abstract: We present seven new widely separated companions of exoplanet host stars, detected via common proper motion, whose companionship could be confirmed with photometry, and in two cases also with follow-up spectroscopy. We derive the masses and projected separations of all detected companions, among them HD 107148 B, a further wide white dwarf companion of an exoplanet host star. The current multiplicity rate of the exoplanet host stars is found to be about 13 per cent.