J/PASJ/63/1035 Stellar parameters and abundances of 99 giants (Wang+, 2011)
Stellar parameters and chemical abundances of G giants.
Wang L., Liu Y., Zhao G., Sato B.
<Publ. Astron. Soc. Jap., 63, 1035-1046 (2011)>
=2011PASJ...63.1035W 2011PASJ...63.1035W
ADC_Keywords: Stars, giant ; Stars, G-type ; Abundances ; Space velocities
Keywords: stars: abundances - stars: atmospheres -
stars: fundamental parameters - stars: late-type
Abstract:
We present basic stellar parameters of 99 late-type G giants based on
high-resolution spectra obtained by the High Dispersion Spectrograph
attached to Subaru Telescope. These stars are targets of a Doppler
survey program searching for extra-solar planets among evolved stars,
with a metallicity of -0.8<[Fe/H]<+0.2. We also derived their
abundances of 15 chemical elements, including four α-elements
(Mg, Si, Ca, Ti), three odd-Z light elements (Al, K, Sc), four iron
peak elements (V, Cr, Fe, Ni), and four neutron-capture elements
(Y, Ba, La, Eu). Kinematic properties reveal that most of the program
stars belong to the thin disk.
Description:
Here, we present the first results of these 99 stars, whose spectra
were obtained in 2006 July.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
abund.dat 102 99 List of abundance of program stars relative to
those of the Sun
table2.dat 29 150 List of spectral lines, as well as their atomic
parameters adopted in this work
table3.dat 69 99 List of stellar atmospheric parameters and
physical parameters of 99 program stars
table4.dat 27 99 List of stellar atmospheric parameters of
99 program stars
table8.dat 60 99 List of kinetic parameters of 99 program stars
table9.dat 50 9589 List of measured equivalent widths and
calculated abundance values log(A) for the
99 program stars and the Sun
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See also:
III/135 : Henry Draper Catalogue and Extension (Cannon+ 1918-1924; ADC 1989)
Byte-by-byte Description of file: abund.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD number
8- 12 F5.2 [Sun] [Fe1/H] Abundance of [FeI/H]
14- 18 F5.2 [Sun] [Fe2/H] Abundance of [FeII/H]
20- 24 F5.2 [Sun] [Al/Fe] ? Abundance of [Al/Fe]
26- 30 F5.2 [Sun] [Mg/Fe] ? Abundance of [Mg/Fe]
32- 36 F5.2 [Sun] [Si/Fe] Abundance of [Si/Fe]
38- 42 F5.2 [Sun] [K/Fe] ? Abundance of [K/Fe]
44- 48 F5.2 [Sun] [Ca/Fe] Abundance of [Ca/Fe]
50- 54 F5.2 [Sun] [V/Fe] ? Abundance of [V/Fe]
56- 60 F5.2 [Sun] [Cr/Fe] Abundance of [Cr/Fe]
62- 66 F5.2 [Sun] [Sc/Fe] ? Abundance of [Sc/Fe]
68- 72 F5.2 [Sun] [Y/Fe] ? Abundance of [Y/Fe]
74- 78 F5.2 [Sun] [Ba/Fe] ? Abundance of [Ba/Fe]
80- 84 F5.2 [Sun] [Eu/Fe] ? Abundance of [Eu/Fe]
86- 90 F5.2 [Sun] [La/Fe] ? Abundance of [La/Fe]
92- 96 F5.2 [Sun] [Ni/Fe] Abundance of [Ni/Fe]
98-102 F5.2 [Sun] [Ti/Fe] ? Abundance of [Ti/Fe]
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 8 F8.3 0.1nm lambda Wavelength in Angstrom
10- 13 A4 --- El Element and ionization stage
15- 18 F4.2 eV Eplow Excitation potential of lower state
20- 25 F6.3 [-] loggf Oscillation strength log(gf)
27- 29 F3.1 --- Egam [0.8/3.0] Enhancement factor Eγ
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD number
8- 11 I4 K Teff ? Effective temperature (1)
13- 17 F5.2 [Sun] [Fe/H] ? Metallicity, [Fe/H]
19- 23 F5.3 [cm/s2] logg ? Logarithm of stellar surface gravity (2)
25- 28 F4.2 km/s Vt ? Microturbulent velocity ξ
30- 34 F5.3 mag B-V ? Color index B-V
36- 40 F5.3 mag E(B-V) ? Extinction of B-V
42- 47 F6.3 mag VMAG ? Absolute visual magnitude
49- 54 F6.3 mag BC ? Bolometric correction
56- 59 F4.2 Msun Mass ? Mass of star
61- 64 F4.2 [yr] logAge ? Logarithm of stellar age
66- 69 F4.2 [Lsun] logL ? Logarithm of luminosity
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Note (1): Effective temperatures are derived from B-V and calibration
relation of Alonso et al. (1999A&AS..140..261A 1999A&AS..140..261A).
Note (2): Surface gravities are derived from Hipparcos parallaxes.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD number
8- 11 I4 K Teff2 Effective temperature (3)
13- 17 F5.2 [-] [Fe/H]2 Metallicity, [Fe/H]
19- 22 F4.2 [cm/s2] logg2 Logarithm of stellar surface gravity (4)
24- 27 F4.2 km/s Vt2 Microturbulent velocity
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Note (3): Effective temperatures are derived from excitation equilibrium method.
Note (4): Surface gravities are derived from ionization balance method.
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Byte-by-byte Description of file: table8.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD number
8- 13 F6.2 km/s HRV Heliocentric radial velocity
15- 18 F4.2 km/s e_HRV Error of heliocentric radial velocity
20- 24 F5.1 km/s Ulsr Galactic velocity component U relative to LSR
26- 29 F4.1 km/s e_Ulsr Error of Ulsr
31- 35 F5.1 km/s Vlsr Galactic velocity component V relative to LSR
37- 40 F4.1 km/s e_Vlsr Error of Vlsr
42- 46 F5.1 km/s Wlsr Galactic velocity component W relative to LSR
48- 51 F4.1 km/s e_Wlsr Error of Wlsr
53- 57 F5.2 --- TD/D Relative probability of thick-disk/thin-disk (5)
59- 60 A2 --- Note [TD] TD for star likely to be a thick-disk
star rather than a thin-disk star
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Note (5): For instance, a star with TD/D=10 means that it is 10-times more
likely to belong to a thick disk than to a thin disk.
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
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1- 6 I6 --- HD HD number, 0 for the Sun.
8- 15 F8.3 0.1nm lambda Wavelength in Angstrom
17- 18 A2 --- El Element
19 I1 --- ion [1/2] Ionization stage (1=neutral)
21- 25 F5.3 eV Eplow Excitation potential of lower state
27- 32 F6.3 [-] loggf Oscillation strength log(gf)
34- 36 F3.1 --- Egam [0.8/3.0] Enhancement factor Eγ
37- 38 A2 --- --- [0]
40- 44 F5.1 0.1pm EW Equivalent width in mÅ (10-13m)
46- 50 F5.3 [-] logA Relative abundance of El (log scale ε)
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 08-Nov-2011