J/A+A/493/645 Gl 176 radial velocities (Forveille+, 2009)
The HARPS search for southern extra-solar planets.
XIV. Gl 176b, a super-Earth rather than a Neptune, and at a different period.
Forveille T., Bonfils X., Delfosse X., Gillon M., Udry S., Bouchy F.,
Lovis C., Mayor M., Pepe F., Perrier C., Queloz D., Santos N.,
Bertaux J.-L.
<Astron. Astrophys., 493, 645-650 (2009)>
=2009A&A...493..645F 2009A&A...493..645F
ADC_Keywords: Stars, late-type ; Planets ; Radial velocities
Keywords: stars: planetary systems - stars: late-type - stars: activity -
stars: low-mass, brown dwarfs - stars: starspots -
stars: individual: G1 176
Abstract:
A 10.24-day Neptune-mass planet was recently announced as orbiting the
nearby M2 dwarf Gl 176, based on 28 radial velocities measured with
the HRS spectrograph on the Hobby-Heberly Telescope. We obtained 57
radial velocities of Gl 176 with the ESO 3.6m telescope and the HARPS
spectrograph, which is known for its sub-m/s stability. The median
photon-noise standard error of our measurements is 1.1m/s, and the
4-year period over which they were obtained overlaps considerably with
the epochs of the HET measurements. The HARPS measurements show no
evidence of a signal at the period of the putative HET planet,
suggesting that its detection was spurious. We do find, on the other
hand, strong evidence of a lower mass 8.4MEarth planet, in a
quasi-circular orbit and at the different period of 8.78 days.
Objects:
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RA (2000) DE Designation(s)
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04 42 55.8 +18 57 29 Gl 176 = HIP 21932
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 29 57 Radial-velocity measurements and error bars
for Gl 176
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See also:
J/A+A/469/L43 : Radial velocities of Gl 581 (Udry+, 2007)
J/A+A/474/293 : Radial velocities of GJ 674 (Bonfils+, 2007)
J/A+A/493/639 : Velocity curves of HD 40307 (Mayor+, 2009)
J/A+A/496/513 : RV of 6 stars with long-period giant planets (Moutou+, 2009)
J/A+A/496/521 : Radial velocities of HD45364 (Correia+, 2009)
J/A+A/496/527 : Radial velocity curves of HD 47186 & HD 181433 (Bouchy+, 2009)
J/A+A/507/487 : GJ 581 radial velocity curve (Mayor+, 2009)
J/A+A/512/A46 : Radial velocities of BD-08 2823 (Hebrard+, 2010)
J/A+A/512/A47 : Radial velocities of 3 stars with giant planets (Santos+ 2010)
J/A+A/512/A48 : HD125612, HD215497, HIP5158 HARPS RV curves (Lo Curto+, 2010)
J/A+A/523/A15 : RV data for the 8 targets (Naef+, 2010)
J/A+A/526/A141 : HIP 85647 & Gl 676A radial velocities (Forveille+, 2011)
J/A+A/527/A63 : 7 new HARPS planetary systems radial velocities (Moutou+ 2011)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 14 F14.6 d JD Julian date
16- 22 F7.4 km/s RV Radial velocity (1)
24- 29 F6.4 km/s e_RV rms uncertainty on RV
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Note (1): All values are relative to the solar system barycenter, and
corrected from the small perspective acceleration using the Hipparcos
parallax and proper motion.
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History:
From electronic version of the journal
References:
Pepe et al., Paper I 2004A&A...423..385P 2004A&A...423..385P
Santos et al., Paper II 2004A&A...426L..19S 2004A&A...426L..19S
Lovis et al., Paper III 2005A&A...437.1121L 2005A&A...437.1121L
Moutou et al., Paper IV 2005A&A...439..367M 2005A&A...439..367M
Udry et al., Paper V 2006A&A...447..361U 2006A&A...447..361U
Bonfils et al., Paper VI 2005A&A...443L..15B 2005A&A...443L..15B
Lo Curto et al., Paper VII 2006A&A...451..345L 2006A&A...451..345L
Pepe et al., Paper VIII 2007A&A...462..769P 2007A&A...462..769P
Naef et al., Paper IX 2007A&A...470..721N 2007A&A...470..721N
Bonfils et al., Paper X 2007A&A...474..293B 2007A&A...474..293B, Cat. J/A+A/474/293
Udry et al., Paper XI 2007A&A...469L..43U 2007A&A...469L..43U, Cat. J/A+A/469/L43
Santos et al., Paper XII 2007A&A...474..647S 2007A&A...474..647S
Mayor et al., Paper XIII 2009A&A...493..639M 2009A&A...493..639M
Moutou et al., Paper XV 2009A&A...496..513M 2009A&A...496..513M, Cat. J/A+A/496/513
Correia et al., Paper XVI 2009A&A...496..521C 2009A&A...496..521C, Cat. J/A+A/496/521
Bouchy et al., Paper XVII 2009A&A...496..527B 2009A&A...496..527B, Cat. J/A+A/496/527
Mayor et al., Paper XVIII 2009A&A...507..487M 2009A&A...507..487M
Correia et al., Paper XIX 2010A&A...511A..21C 2010A&A...511A..21C
Hebrard et al., Paper XX 2010A&A...512A..46H 2010A&A...512A..46H, Cat. J/A+A/512/A46
Santos et al., Paper XXI 2010A&A...512A..47S 2010A&A...512A..47S, Cat. J/A+A/512/A47
Lo Curto et al., Paper XXII 2010A&A...512A..48L 2010A&A...512A..48L, Cat. J/A+A/512/A48
Naef et al., Paper XXIII 2010A&A...523A..15N 2010A&A...523A..15N, Cat. J/A+A/523/A15
Forveille et al., Paper XXVI 2011A&A...526A.141F 2011A&A...526A.141F, Cat. J/A+A/526/A141
Moutou et al., Paper XXVII 2011A&A...527A..63M 2011A&A...527A..63M, Cat. J/A+A/527/A63
(End) Patricia Vannier [CDS] 20-Feb-2009