J/A+A/543/A98 β Gem radial velocity and photometric data (Hatzes+, 2012)
The mass of the planet-hosting giant star β Geminorum determined from its
p-mode oscillation spectrum.
Hatzes A.P., Zechmeister M., Matthews J., Kuschnig R., Walker G.A.H.,
Dollinger M., Guenther D.B., Moffat A.F.J., Ruciniski S.M., Sasselov D.
<Astron. Astrophys. 543, A98 (2012)>
=2012A&A...543A..98H 2012A&A...543A..98H
ADC_Keywords: Stars, double and multiple ; Planets ; Radial velocities
Keywords: techniques: radial velocities - star: individual: beta Geminorum -
stars: late-type
Abstract:
Our aim is to use precise radial velocity measurements and photometric
data to derive the frequency spacing of the p-mode oscillation
spectrum of the planet-hosting star beta Gem. This spacing along with
the interferometric radius for this star can then be used to derive an
accurate stellar mass.
Description:
We use a long time series of over 60 hours of precise stellar radial
velocity measurements of beta Gem taken with an iodine absorption cell
at the echelle spectrograph mounted on the 2m Alfred Jensch Telescope.
We also present complementary photometric data for this star taken
with the MOST microsatellite spanning 3.6d. A Fourier analysis is used
to derive the frequencies that are present in each data set.
Objects:
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RA (2000) DE Designation(s)
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07 45 18.95 +28 01 34.3 beta Gem = NAME POLLUX
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
veloc.dat 30 801 Radial velocities of beta Gem
photom.dat 33 801 Photometry of beta Gem
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Byte-by-byte Description of file: veloc.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian date
17- 22 F6.2 m/s RV Radial velocity
26- 30 F5.2 m/s e_RV rms uncertainty on RV
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Byte-by-byte Description of file: photom.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian Day
19- 25 F7.2 10-3 Int Intensity (in ppt = parts per thousand)
29- 33 F5.3 10-3 e_Int rms uncertainty on Int
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Acknowledgements:
Artie P. Hatzes, artie(at)tls-tautenburg.de
(End) Patricia Vannier [CDS] 25-Jun-2012