J/PAZh/38/122 Equivalent widths of 14 red giants (Pakhomov, 2012)
Chemical composition of the atmospheres of red giants with high space
velocities.
Pakhomov, Yu.V.
<Pis'ma Astron. Zh. 38, 122 (2012)>
=2012PAZh...38..122P 2012PAZh...38..122P
=2012AstL...38..101P 2012AstL...38..101P
ADC_Keywords: Stars, giant ; Spectroscopy ; Equivalent widths
Keywords: stellar spectroscopy - stellar atmospheres - red giants -
stellar evolution - kinematics - Galactic chemical evolution
Abstract:
The results of a comparative analysis of the elemental abundances in
the atmospheres of 14 red giants with high Galactic space velocities
are presented. For almost all of the chemical elements considered, the
their abundance trends with metallicity correspond to those
constructed for thick-disk dwarfs. In the case of sodium, the main
factor affecting the [Na/Fe] abundance in the stellar atmosphere for
red giants is the surface gravity that characterizes the degree of
development of the convective envelope. The difference between the
[Na/Fe] abundances in the atmospheres of thin- and thick-disk red
giants has been confirmed.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 34 14 List of studied high-velocity red giants
table.dat 139 315 The equivalent widths
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Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 12 I2 h RAh Right ascension (J2000)
14- 15 I2 min RAm Right ascension (J2000)
17- 20 F4.1 s RAs Right ascension (J2000)
22 A1 --- DE- Declination sign (J2000)
23- 24 I2 deg DEd Declination (J2000)
26- 27 I2 arcmin DEm Declination (J2000)
29- 30 I2 arcsec DEs Declination (J2000)
32- 34 A3 --- Col Name of the column with equivalent width
in table.dat
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Byte-by-byte Description of file: table.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- El Element and ionization
7- 13 F7.2 0.1nm lambda [5587/6981] Wavelength (Å)
17- 20 F4.2 eV chi Excitation potential χ of the lower level
23- 27 F5.2 --- loggf Oscillator strength (loggf)
30- 35 F6.4 0.1nm W1 ? Equivalent width of HD2901
38- 43 F6.4 0.1nm W2 ? Equivalent width of HD10550
46- 51 F6.4 0.1nm W3 ? Equivalent width of HD92095
54- 59 F6.4 0.1nm W4 ? Equivalent width of HD94600
62- 67 F6.4 0.1nm W5 ? Equivalent width of HD94669
70- 75 F6.4 0.1nm W6 ? Equivalent width of HD94860
78- 83 F6.4 0.1nm W7 ? Equivalent width of HD99902
86- 91 F6.4 0.1nm W8 ? Equivalent width of HD100696
94- 99 F6.4 0.1nm W9 ? Equivalent width of HD104985
102-107 F6.4 0.1nm W10 ? Equivalent width of HD127243
110-115 F6.4 0.1nm W11 ? Equivalent width of HD141353
118-123 F6.4 0.1nm W12 ? Equivalent width of HD141472
126-131 F6.4 0.1nm W13 ? Equivalent width of HD152879
134-139 F6.4 0.1nm W14 ? Equivalent width of HD197752
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Acknowledgements:
Yury Pakhomov, pakhomov (at)inasan.ru
(End) Yury Pakhomov [INASAN], Patricia Vannier [CDS] 10-Dec-2013