J/ApJ/708/1366 Radial velocities for 61 Vir (Vogt+, 2010)
A super-Earth and two Neptunes orbiting the nearby Sun-like star 61 Virginis.
Vogt S.S., Wittenmyer R.A., Butler R.P., O'Toole S., Henry G.W.,
Rivera E.J., Meschiari S., Laughlin G., Tinney C.G., Jones H.R.A.,
Bailey J., Carter B.D., Batygin K.
<Astrophys. J., 708, 1366-1375 (2010)>
=2010ApJ...708.1366V 2010ApJ...708.1366V
ADC_Keywords: Stars, G-type ; Radial velocities ; Stars, double and multiple ;
Planets
Keywords: astrobiology - planetary systems - stars: individual (61 Vir)
Abstract:
We present precision radial velocity data that reveal a multiple
exoplanet system orbiting the bright nearby G5V star 61 Virginis. Our
4.6 years of combined Keck/HIRES and Anglo-Australian Telescope
precision radial velocities indicate the hitherto unknown presence of
at least three planets orbiting this well-studied star. These planets
are all on low-eccentricity orbits with periods of 4.2, 38.0, and
124.0 days, and projected masses (Msini) of 5.1, 18.2, and
24.0M{earth}, respectively. Test integrations of systems consistent
with the radial velocity data suggest that the configuration is
dynamically stable.
Description:
The HIRES spectrometer of the Keck I telescope and the UCLES
spectrometer of the Anglo-Australian Telescope (AAT) have been used to
monitor 61 Vir. A total of 126 AAT observations, dating from 2005
April 21 to 2009 August 14, representing a time span of 1576 days,
have been obtained. A total of 80 Keck observations dating from 2004
December 29 to 2009 Aug 09, representing a data span of 1685 days,
have also been obtained. Table 2 lists the complete set of 206 radial
velocities for 61 Vir, corrected to the solar system barycenter.
Objects:
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RA (2000) DE Designation(s) (Rotation Period)
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13 18 24.3 -18 18 40 61 Vir = TYC 6116-1517-1 (P = 29d )
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 26 206 Radial velocities for 61 Vir
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See also:
B/eso : ESO Science Archive Catalog (ESO, 2012)
B/mk : Catalogue of Stellar Spectral Classifications (Skiff, 2010)
B/cfht : Log of CFHT Exposures (CADC, 1979-)
I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
J/A+A/523/A91 : CoRoT/Exoplanet fields with MATISSE (Gazzano+, 2010)
J/A+A/487/373 : Spectroscopic parameters of 451 HARPS-GTO stars (Sousa+, 2008)
J/ApJS/168/297 : Stellar parameters of nearby cool stars (Takeda+, 2007)
J/ApJS/162/207 : Radial velocities of solar-type stars (Abt+, 2006)
J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
J/A+A/423/517 : Velocities of Galactic disk late-type stars (Rocha-Pinto+,
2004)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d JD Julian date of observation center
15- 19 F5.2 m/s RV Radial velocity
21- 24 F4.2 m/s e_RV RV internal uncertainty
26 A1 --- Tel [AK] Observatory (A: Anglo-Australian Telescope
or K: Keck)
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 22-Feb-2012