J/AZh/81/658 Equivalent widths of 9 barium stars (Antipova+, 2004)
Analysis of Atmospheric Abundances in Classical Barium Stars.
Antipova L.I., Boyarchuk A.A., Pakhomov Yu.V., Panchuk V.E.
<Astron. Zh. 81, 658 (2004)>
=2004AZh....81..658A 2004AZh....81..658A
=2004ARep...48..597A 2004ARep...48..597A
ADC_Keywords: Stars, giant ; Equivalent widths
Abstract:
We present our analysis of elemental abundances in the atmospheres of
16 classical barium stars derived from high-resolution spectra and
model atmospheres. Comparison of the results with analogous data for
moderate barium stars and normal red giants shows that the abundance
patterns for elements before the iron peak are the same for all three
groups of red giants, testifying to a similar origin. For binary
systems, we confirm the influence of the orbital period and, hence,
the component separation, on the overabundance of s-process elements.
The amount of enrichment in s-process elements is also in influenced
by mass, metallicity, and evolutionary phase. Any of these parameters
can be important in individual objects.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 60 9 List of the 9 stars studied
table2.dat 99 610 The equivalent widths
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See also:
J/AZh/78/807 : Chemical composition of eta Ser (Antipova+, 2001)
J/AZh/79/909 : Chemical abundances in barium stars (Boyarchuk+, 2002)
J/AZh/80/704 : Studies of classical barium stars (Antipova+, 2003)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [HD]
4- 9 I6 --- HD HD (Cat. III/135)
18- 19 I2 h RAh Right Ascension J2000 (hours)
21- 22 I2 min RAm Right Ascension J2000 (minutes)
24- 27 F4.1 s RAs Right Ascension J2000 (seconds)
29 A1 --- DE- Declination J2000 (sign)
30- 31 I2 deg DEd Declination J2000 (degrees)
33- 34 I2 arcmin DEm Declination J2000 (minutes)
36- 37 I2 arcsec DEs Declination J2000 (seconds)
41- 45 F5.2 mag Bmag Blue magnitude (from Simbad)
47- 51 F5.2 mag Vmag Visible magnitude (from Simbad)
53- 60 A8 --- SpType MK Spectral classification (from Simbad)
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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- 4 A4 --- El Element
7- 13 F7.2 0.1nm Lambda Wavelength expressed in Angstroems
17- 20 F4.2 eV ExcPot Excitation potentials of the lower level
23- 27 F5.2 --- Loggf Oscillator strength (log gf)
31- 35 F5.3 0.1nm W1 ? Equivalent width of HD 16458
39- 43 F5.3 0.1nm W2 ? Equivalent width of HD 88562
47- 51 F5.3 0.1nm W3 ? Equivalent width of HD 101013
55- 59 F5.3 0.1nm W4 ? Equivalent width of HD 130386
63- 67 F5.3 0.1nm W5 ? Equivalent width of HD 139409
71- 75 F5.3 0.1nm W6 ? Equivalent width of HD 175190
79- 83 F5.3 0.1nm W7 ? Equivalent width of HD 178717
87- 91 F5.3 0.1nm W8 ? Equivalent width of HD 183915
95- 99 F5.3 0.1nm W9 ? Equivalent width of HD 196673
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(End) Pakhomov Yu.V., Veta Avedisova[INASAN] 01-Nov-2004