J/ApJS/168/297 Stellar parameters of nearby cool stars (Takeda+, 2007)
Structure and evolution of nearby stars with planets.
II. Physical properties of ∼1000 cool stars from the SPOCS catalog.
Takeda G., Ford E.B., Sills A., Rasio F.A., Fischer D.A., Valenti J.A.
<Astrophys. J. Suppl. Ser., 168, 297-318 (2007)>
=2007ApJS..168..297T 2007ApJS..168..297T
ADC_Keywords: Stars, late-type ; Stars, nearby ; Effective temperatures ;
Stars, masses ; Stars, diameters ; Planets
Keywords: planetary systems - stars: fundamental parameters - stars: interiors
Abstract:
We derive detailed theoretical models for 1074 nearby stars from the
SPOCS (Spectroscopic Properties of Cool Stars) Catalog. We provide a
catalog of physical parameters for 1074 stars that are based on a
uniform set of high-quality spectral observations, a uniform spectral
reduction procedure, and a uniform set of stellar evolutionary models.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 138 1074 Theoretical stellar parameters
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See also:
J/ApJS/159/141 : Spectroscopic properties of cool stars. I. (Valenti+, 2005)
J/A+A/329/943 : F + G solar neighbourhood stars new ages (Ng+ 1998)
J/MNRAS/360/1345 : F- and G-type stars in solar neighbourhood (Karatas+, 2005)
J/A+A/394/927 : Age-metallicity relation for nearby stars (Ibukiyama+, 2002)
J/ApJ/640/1051 : 25pc sample of Sun-like stars (Grether+, 2006)
J/A+A/352/555 : Fundamental parameters of stars (Allende Prieto+, 1999)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- ID Stellar identification (BD or HD number)
12- 16 F5.3 solMass M ? Best-estimate stellar mass (1)
18- 22 F5.3 solMass e_M ? Lower bound 68.2% credible interval on M (1)
24- 28 F5.3 solMass E_M ? Upper bound 68.2% credible interval on M (1)
30- 34 F5.3 solMass M2 ? Second-best mass estimate (1)(2)
36- 39 F4.2 --- pM2 ? Probability of Mass2 relative to Mass
41- 45 F5.2 Gyr Age ? Best-estimate stellar age (1)
47- 51 F5.2 Gyr e_Age ? Lower bound 68.2% credible interval on Age (1)
53- 57 F5.2 Gyr E_Age ? Upper bound 68.2% credible interval on Age (1)
59- 63 F5.2 Gyr Age2 ? Second-best age estimate (1)(2)
65- 68 F4.2 --- pAge2 ? Probability of Age2 relative to Age
70- 74 F5.2 solRad Rad Best-estimate stellar radius (1)
76- 80 F5.2 solRad e_Rad Lower bound 68.2% credible interval on Rad (1)
82- 86 F5.2 solRad E_Rad Upper bound 68.2% credible interval on Rad (1)
88- 92 F5.3 solMass Mce ? Best-estimate stellar convective zone mass (1)
94- 98 F5.3 solMass e_Mce ? Lower bound 68.2% credible interval on Mce (1)
100-105 F6.3 solMass E_Mce ? Upper bound 68.2% credible interval on Mce (1)
107-111 F5.3 solRad Rce ? Best-estimate stellar convective
zone depth (1)(3)
113-117 F5.3 solRad e_Rce ? Lower bound 68.2% credible interval on Rce (1)
119-123 F5.3 solRad E_Rce ? Upper bound 68.2% credible interval on Rce (1)
125-128 F4.2 [cm/s2] logg ?Log of the best-estimate surface gravity (1)
130-133 F4.2 [cm/s2] e_logg ?Lower bound 68.2% credible interval on logg (1)
135-138 F4.2 [cm/s2] E_logg ?Upper bound 68.2% credible interval on logg (1)
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Note (1): Best-estimate parameters are computed from the mode values
of the derived probability distribution functions (PDFs). The
best-estimate parameter is left blank if the mode value of a PDF is
outside the given parameter range; e.g., if a star has an estimated
age of 0 or 14Gyr, the best-estimate age is not listed in the table.
Similarly, the lower/upper bound of the credible interval is left
blank if it lies outside the given parameter range.
Note (2): Corresponding to the secondary maximum in the derived posterior
probability distribution function (PDF).
Note (3): Measured from the stellar surface.
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History:
From electronic version of the journal
References:
Ford et al., Paper I 1999ApJ...514..411F 1999ApJ...514..411F
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 19-Nov-2008