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

Full paper

View the references in ADS

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 - 2023	#notes
1	LP 944-20	LM*	03 39 35.2523500210	-35 25 43.641996333			18.69	16.39	13.288	M9.5Ve	281	0
2	HD 123233	PM*	14 06 09.5676700560	+09 53 43.249342812		8.71	8.63			A0V	26	0
3	VB 10	Er*	19 16 57.6109547886	+05 09 01.600923413			17.30			M8V	468	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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