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J/A+A/525/A63       Abundances in Ba stars               (Allen+, 2011)

Mn, Cu, and Zn abundances in barium stars and their correlations with neutron capture elements. Allen D.M., Porto de Mello G.F. <Astron. Astrophys. 525, A63 (2011)> =2011A&A...525A..63A
ADC_Keywords: Stars, peculiar ; Abundances Keywords: stars: chemically peculiar - stars: abundances - techniques: spectroscopic - stars: AGB and post-AGB - stars: atmospheres Abstract: We present abundances of Mn, Cu, Zn, and various light and heavy elements for a sample of barium and normal giant stars, and present correlations between abundances contributed to different degrees by the weak-s, main-s, and r-processes of neutron capture, between Fe-peak elements and heavy elements. All spectra for the sample stars were obtained with the 1.52m telescope at ESO, La Silla, using the Fiber Fed Extended Range Optical Spectrograph (FEROS). FEROS spectra have a constant resolving power of R=48000 from 3600Å to 9200Å. The stellar sample targeted in our study includes eight mild and classical barium stars and six normal giants, with a spectral S/N ratio ranging from 200 to 450 in the visible range. Description: Table 2 contains the lines, atomic constants, equivalent widths, and abundance results for the elements other than iron, and Table 3 contains the average for the abundances and their uncertainties. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 56 40 Stars positions table2.dat 75 1670 Lines, atomic constants, equivalent widths, and abundances of stars table3.dat 50 1023 Average of abundances and their uncertainties for stars and the Sun refs.dat 166 34 References
See also: II/192 : UBV Photometry of Barium Stars (Watanabe+ 1993) V/81 : Taxonomy of Barium Stars (Lu 1991) J/A+A/319/881 : Ba II strength of barium stars (Gomez+ 1997) J/A+A/321/L9 : Barium stars in the HR diagram (Bergeat+ 1997) J/A+A/326/722 : HIPPARCOS Ba stars (Mennessier+ 1997) J/A+A/372/245 : Infrared properties of barium stars (Chen+, 2001) J/AZh/79/909 : Chemical abundances in barium stars (Boyarchuk+, 2002) J/AZh/80/704 : Studies of classical barium stars (Antipova+, 2003) J/A+A/454/895 : Abundances of 26 barium stars. I. (Allen+, 2006) J/A+A/454/917 : Abundances of 26 barium stars. II. (Allen+, 2006) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name HD, HR, or BD number 12- 13 I2 h RAh Simbad Hour of Right Ascension (J2000.0) 15- 16 I2 min RAm Simbad Minute of Right Ascension (J2000.0) 18- 21 F4.1 s RAs Simbad Second of Right Ascension (J2000.0) 23 A1 --- DE- Simbad Sign of the Declination (J2000.0) 24- 25 I2 deg DEd Simbad Degree of Declination (J2000.0) 27- 28 I2 arcmin DEm Simbad Arcminute of Declination (J2000.0) 30- 31 I2 arcsec DEs Simbad Arcsecond of Declination (J2000.0) 34- 39 F6.3 mag Bmag Simbad B band magnitude 41- 46 F6.3 mag Vmag Simbad V band magnitude 48- 56 A9 --- SpType Simbad MK spectral type
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name HD, HR, or BD number 11 A1 --- n_Name [*] * indicates normal star 14- 19 A6 --- Ion Element code and ionization state 20 A1 --- n_Ion [*] * indicates multiple line 23- 30 F8.3 0.1nm lambda Wavelength of the line 31 A1 --- n_lambda [abc] Molecular line (1) 35- 39 F5.3 eV EP ?=- Lower excitation potential 42- 48 F7.3 [-] loggf ?=- Logarithm of oscillator strength 51- 55 A5 --- r_loggf References for oscillator strength (refs.dat) 59- 61 I3 0.1pm EW ?=- Equivalent width for the star 64- 68 F5.2 [-] logEps ?=- Elemental abundance (=log(nX/nH)+12) 71- 75 F5.2 [-] [X/FeII] ?=- Abundance [X/Fe] (logarithmic scale)
Note (1): Notes as follows: a = representative line for CH (G band) b = representative line for C2 c = representative line for CN
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Name HD, HR, or BD number 11 A1 --- n_Name [*] * indicates normal star 15- 19 A5 --- Ion Element code and ionization state 21 A1 --- l_logEps Limit flag on logEps 22- 26 F5.2 --- logEps ?=- Average of logEps (=log(nX/nH) + 12) 28 A1 --- l_[X/Fe] Limit flag on [X/Fe] 29- 33 F5.2 [-] [X/Fe] ?=- Average of the overabundance of the element X relative to Fe 36- 39 F4.2 --- e_logEps ?=- Uncertainty on logEps 42- 45 F4.2 [-] e_[X/Fe] ?=- Uncertainty on [X/Fe] 49- 50 I2 --- Ref ? Reference for solar abundance (in refs.dat)
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Ref Reference number 4- 22 A19 --- BibCode BibCode 24- 45 A22 --- Aut Author's name 48-166 A119 --- Com Comments
Acknowledgements: Dinah Moreira Allen, dimallen(at)astro.iag.usp.br
(End) Patricia Vannier [CDS] 01-Oct-2010
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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