2009A&A...505L...5Z

Query : 2009A&A...505L...5Z

2009A&A...505L...5Z - Astronomy and Astrophysics, volume 505, L5-8 (2009/10-1)

Infrared radial velocities of vB 10.

ZAPATERO OSORIO M.R., MARTIN E.L., DEL BURGO C., DESHPANDE R., RODLER F. and MONTGOMERY M.M.

Abstract (from CDS):

We present radial velocities of the M8V-type, very low-mass star vB10 obtained at four different epochs between 2001 and 2008. We use high-resolution (R∼20000) near-infrared (J-band) spectra taken with the nirspec instrument on the KeckII telescope. Our data suggest that vB10 shows radial velocity variability with an amplitude of ∼1km/s, 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.

Abstract Copyright: ∼

Journal keyword(s): stars: late-type - stars: low-mass, brown dwarfs - stars: individual: vB 10 - techniques: radial velocities - systems - binaries: general planetary

VizieR on-line data: <Available at CDS (J/A+A/505/L5): table2.dat>

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 LP 944-20 LM* 03 39 35.2523500210 -35 25 43.641996333     18.69 16.39 13.288 M9.5Ve 289 0
2 HD 123233 PM* 14 06 09.5676700560 +09 53 43.249342812   8.71 8.63     A0V 28 0
3 VB 10 Er* 19 16 57.6109547886 +05 09 01.600923413     17.30     M8V 476 1
4 HD 181414 PM* 19 20 19.4882054232 +04 46 40.402306920 7.310 7.180 7.060     A2V 25 0
5 HD 189920 * 20 02 04.9379961264 +12 19 19.548231564   9.42 9.36     A0V 21 0

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