The Frequency of Wide Companions to Planet-Host Stars: A New Wide Brown Dwarf Companion

Bibcode
2015ASPC..496..104L
Lodieu, N.; Pérez-Garrido, A.; Béjar, V. J. S.; Gauza, B.; Ruiz, M. T.; Rebolo, R.
Referencia bibliográfica

Living Together: Planets, Host Stars and Binaries, Proceedings of a conference held 8-12 September 2014 in Litomyšl, Czech Republic. Edited by Slavek M. Rucinski, Guillermo Torres, and Miloslav Zejda. ASP Conference Series, Vol. 496. San Francisco: Astronomical Society of the Pacific, 2015., p.104

Fecha de publicación:
7
2015
Número de autores
6
Número de autores del IAC
2
Número de citas
0
Número de citas referidas
0
Descripción
The aim of the project is to improve our knowledge of the multiplicity of planet-host stars at wide physical separations. We cross-matched approximately 6,200 square degrees imaged by the Visible Infrared Survey Telescope for Astronomy (VISTA) Hemisphere Survey (VHS) with the Two Micron All Sky Survey (2MASS) to look for wide common proper motion companions to known planet-host stars. We report two new stellar M dwarf companions as well as a T4.5 dwarf companion, at 6.3 arcmin (˜9,000 au) from the K7V star HIP 70849, yielding stellar and substellar frequencies of 5.4±3.8% and 2.7±2.7% (1σ), respectively. We refer the reader to our refereed paper (Lodieu et al. 2014) for more detailed information on the results.
Tipo
Sin árbitro

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