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J/A+A/505/L5        Infrared radial velocities of vB10       (Zapatero+, 2009)

Infrared radial velocities of vB10. Zapatero Osorio M.R., Martin E.L., Del Burgo C., Deshpande R., Rodler F., Montgomery M.M. <Astron. Astrophys., 505, L5-L8 (2009)> =2009A&A...505L...5Z
ADC_Keywords: Stars, late-type ; Radial velocities ; Spectra, infrared Keywords: stars: late-type - stars: low-mass, brown dwarfs - stars: individual: vB 10 - techniques: radial velocities - planetary systems - binaries: general 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∼20000) 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 ∼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. Description: As part of our program of radial velocity monitoring of late M-type stars, we observed vB10 on four different occasions between 2001 and 2008 using the Keck II telescope and the nirspec instrument, which is a crossdispersed, cryogenic echelle spectrometer employing a 1024x1024 ALADDIN InSb array detector. Objects: ----------------------------------------------- RA (2000) DE Designation(s) ----------------------------------------------- 19 16 57.6 +05 09 02 vB 10 = V* V1298 Aql ----------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 45 5 NIRSPEC radial velocity measurements of vB 10
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 11 F11.5 d MJD Modified Julian date (JD-2400000.5) 12 A1 --- n_MJD [b] b for reference epoch 14- 18 F5.2 km/s RV Radial velocity 20- 23 F4.2 km/s e_RV rms uncertainty on RV 25- 29 F5.2 km/s RVrel ? Relative radial velocity 31- 34 F4.2 km/s e_RVrel ? rms uncertainty on RVrel 36- 40 F5.2 km/s shift ? Radial velocity shift (1) 42- 45 F4.2 km/s e_shift ? rms uncertainty on shift
Note (1): Relative offset in velocity zero point.
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 06-Oct-2009
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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