J/MNRAS/403/1368 Li abundances & vsini for star-planet systems (Gonzalez+, 2010)
Parent stars of extrasolar planets.
X. Lithium abundances and vsini revisited.
Gonzalez G., Carlson M.K., Tobin R.W.
<Mon. Not. R. Astron. Soc., 403, 1368-1380 (2010)>
=2010MNRAS.403.1368G 2010MNRAS.403.1368G
ADC_Keywords: Stars, double and multiple ; Planets ; Rotational velocities ;
Abundances
Keywords: stars: abundances - planetary systems
Abstract:
We determine Li abundances and vsini values from new spectra of
53 stars with Doppler-detected planets not included in our previous
papers in this series. We also examine two sets of stars without
detected planets, which together serve as our comparison sample. Using
the method of comparison of Li abundances and vsini values between two
sets of stars we introduced in Gonzalez, we confirm that these two
quantities are smaller among stars with planets (SWPs) compared to
stars without detected planets near the solar temperature. The
transition from low to high Li abundance among SWPs occurs near 5850K,
a revision of about 50K from our previous determination. The
transition from low to high vsini occurs near 6000K, but this
temperature is not as well constrained.
Description:
We observed a total of 53 SWPs in 2008 March and October with the
McDonald Observatory 2.7-m telescope and 2d coude spectrograph.
In addition to the new spectra we obtained in 2008, we also reanalysed
all the previous spectra of SWPs we had obtained with the McDonald
2.7-m telescope through 2002.
Furthermore, we analyse for the first time spectra of 24 stars without
known planets and one SWP from a McDonald run in 2002 April.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 108 61 Parameters determined from our spectroscopic
analyses of 53 stars with planet
table2.dat 108 38 Parameters determined from our spectroscopic
re-analyses of the stars with planet included
in our previous papers
table3.dat 115 60 Parameters determined for the comparison stars
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See also:
J/A+A/420/183 : Solar neighborhood spectroscopic survey (Allende Prieto+ 2004)
J/MNRAS/378/1141 : Chemical abundances in 31 stars with planet (Gonzalez+ 2007)
Byte-by-byte Description of file: table*.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD ? HD number
7 A1 --- m_HD [A] Multiplicity index on HD
8 A1 --- n_HD [ab] Different spectra for HD 170469 (2)
10- 15 I6 --- HIP ? HIP number (Cat. I/311)
17- 20 I4 K Teff Effective temperature
22- 24 I3 K e_Teff rms uncertainty on Teff
26- 29 F4.2 [cm/s2] logg Surface gravity
31- 34 F4.2 [cm/s2] e_logg rms uncertainty on logg
36- 39 F4.2 km/s xi Microturbulence velocity
41- 44 F4.2 km/s e_xi rms uncertainty on xi
46- 51 F6.3 [Sun] [Fe/H] Metallicity
53- 57 F5.3 [Sun] e_[Fe/H] rms uncertainty on [Fe/H]
59 A1 --- l_epsLi Limit flag on epsLi
60- 64 F5.2 [-] epsLi Lithium abundance (log scale, ε(H)=12)
66- 69 F4.2 [-] e_epsLi rms uncertainty on epsLi
71 A1 --- l_vsini Limit flag on vsini
72- 75 F4.1 km/s vsini Rotational velocity
77- 79 F3.1 km/s e_vsini rms uncertainty on vsini
81- 84 F4.2 solMass Mass ? Mass derived from stellar isochrones
86- 89 F4.2 solMass e_Mass ? rms uncertainty on Mass
91- 94 F4.2 [cm/s2] logg2 ? Gravity surface derived from stellar
isochrones
96- 99 F4.2 [cm/s2] e_logg2 ? rms uncertainty on logg2
101-104 F4.1 Gyr Age ? Age derived from stellar isochrones
106-108 F3.1 Gyr e_Age ? rms uncertainty on Age
111-115 A5 --- Sample Sample for comparison stars (1)
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Note (1): Sample code is:
S4N = Allende Prieto et al., 2004, Cat. J/A+A/420/183
APR02 = April 2002 observations
Note (2): the two spectra of HD 8574 were obtained on different runs.
HD 170469 is from the 2002 April run.
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History:
From electronic version of the journal
References:
Gonzalez, Paper I 1998A&A...334..221G 1998A&A...334..221G
Garcia Lopez et al., Paper II 1998A&A...334..599G 1998A&A...334..599G
Gonzalez & Vanture, Paper III 1998A&A...339L..29G 1998A&A...339L..29G
Gonzalez et al., Paper IV 1999ApJ...511L.111G 1999ApJ...511L.111G
Gonzalez & Laws, Paper V 2000AJ....119..390G 2000AJ....119..390G
Gonzalez et al., Paper VI 2001AJ....121..432G 2001AJ....121..432G
Laws et al., Paper VII 2003AJ....125.2664L 2003AJ....125.2664L
Gonzalez & Laws, Paper VIII 2007MNRAS.378.1141G 2007MNRAS.378.1141G, Cat. J/MNRAS/378/1141
Gonzalez, Paper IX 2008MNRAS.386..928G 2008MNRAS.386..928G
Gonzalez et al., Paper XI 2010MNRAS.407..314G 2010MNRAS.407..314G
(End) Patricia Vannier [CDS] 01-Oct-2010