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J/A+A/328/261       Spectroscopy of Alpha Cen (Neuforge-Verheecke+ 1997)

Spectroscopic analysis of the Alpha Centauri System Neuforge-Verheecke C., Magain P. <Astron. Astrophys. 328, 261 (1997)> =1997A&A...328..261N (SIMBAD/NED BibCode)
ADC_Keywords: Stars, double and multiple ; Abundances ; Spectroscopy Keywords: stars: α Centauri - stars: binaries: visual; abundances; fundamental parameters - Description: This table presents the results of a spectroscopic analysis (differentially to the Sun) of the two components of the binary system Alpha Centauri. This analysis has been carried out on the basis of extensive high resolution and high signal-to-noise spectra taken at the European Southern Observatory (La Silla, Chile). Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 14 40 00.8 -60 50 42 alpha Cen A = HR 5459 = HD 128620 14 40 00.7 -60 50 38 alpha Cen B = HR 5460 = HD 128621 ---------------------------------------------------------- File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table4 107 161 Spectroscopic data and abundances in Alpha Cen A, Alpha Cen B and the Sun.
Byte-by-byte Description of file: table4
Bytes Format Units Label Explanations
1- 4 A4 --- Elm Element and ionisation stage 6- 10 F5.3 --- AbundSun Solar abundance (1) (2) 13- 20 F8.3 0.1nm lambda Wavelength of the line 23- 28 F6.3 eV EP Excitation potential of the lower level 32- 37 F6.3 --- log(gf) Solar oscillator strength in log10 41- 44 F4.1 0.1pm EWsc Solar equivalent width at the disk center 48- 51 F4.1 0.1pm EWs ? Solar equivalent width in integrated light 55- 59 F5.3 --- AbundSun2 ? Solar abundance from EW in integrated light 62- 66 F5.1 0.1pm EWa ? Equivalent width in Alpha Cen A 70- 74 F5.3 --- AbundA ? Abundance in Alpha Cen A (1) 77- 81 F5.1 0.1pm EWb ? Equivalent width in Alpha Cen B 85- 89 F5.3 --- AbundB ? Abundance in Alpha Cen B (1)
Note (1): The abundance of an element is given on the usual logarithmic scale relative to hydrogen: A(el)=(log(Nel/NH) + 12) Nel and NH being respectively the number densities of the element and of hydrogen. Note (2): For the CN molecule, the solar abundance indicated is that of N.
Acknowledgements: Corinne Neuforge
(End) Patricia Bauer [CDS] 25-Aug-1997
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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