Infrared radial velocities of vB 10

    Authors

    M. R. Z. Osorio; E. L. Martin; C. del Burgo; R. Deshpande; F. Rodler;M. M. Montgomery

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Abbreviated Journal Title

    Astron. Astrophys.

    Keywords

    stars: late-type; stars: low-mass, brown dwarfs; stars: individual: vB; 10; techniques: radial velocities; planetary systems; binaries: general; LOW-MASS STARS; BROWN DWARF; MAIN-SEQUENCE; SPECTRA; VB-10; SPECTROSCOPY; EXOPLANETS; CANDIDATE; COMPANION; JUPITER; Astronomy & Astrophysics

    Abstract

    We present radial velocities of the M8V-type, very low-mass star vB 10 obtained at four different epochs between 2001 and 2008. We use high-resolution (R similar to 20 000) near-infrared (J-band) spectra taken with the NIRSPEC instrument on the Keck II telescope. Our data suggest that vB 10 shows radial velocity variability with an amplitude of similar to 1 km s(-1), a result that is consistent with the recent finding of a massive planet companion around the star. More velocity measurements and a better sampling of the orbital phase are required to precisely constrain the orbital parameters and the individual masses of the pair.

    Journal Title

    Astronomy & Astrophysics

    Volume

    505

    Issue/Number

    1

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    L5

    Last Page

    L8

    WOS Identifier

    WOS:000270436000002

    ISSN

    0004-6361

    Share

    COinS