III/131 Spectroscopic Stellar Abundance Analyses (Koeppen 1988)
A Critical Catalogue of Spectroscopic Stellar Abundance Analyses Koeppen J. <CDS Inf. Bull. No. 34, p. 143 (1988)> =1988BICDS..34..143K
ADC_Keywords: Abundances Description: The original catalogue (files *.ori) contains condensed descriptions of all spectroscopic abundance analyses (as far as the metallicity is derived) are given for normal stars (chemically peculiar stars are not included). Based on these descriptions, the "best" abundance determination(s) have been selected and indicated by a quality code. Index files and software tools are included in the catalog. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file stars.dat 68 730 *The main index of analyzed stars intro.ori 72 735 Explanations concerning the next files: hdstars.ori 72 17205 Detailed results about HD stars dmstars.ori 72 751 Detailed results about Durchmusterung stars cluster.ori 72 2085 Detailed results about cluster stars not in HD otherst.ori 72 90 Detailed results Other stars indexst.ori 72 4864 Indexes refs.ori 72 2646 References (383), List of stars with extensive line lists (2227), Some more line lists (37) programs.ori 72 3733 *Software Tools (FORTRAN programs)
Note on stars.dat: file created in March 1997 at CDS from indexst.ori Note on programs.ori: the programs were used to generate the indexes in 1987 on a mainframe; they were not adapted to PCs or workstations.
See also: III/165 : Catalogue of [Fe/H] determinations (Cayrel et al., 1992) Byte-by-byte Description of file: stars.dat
Bytes Format Units Label Explanations
1- 15 A15 --- Name Star name 17- 31 A15 --- SpType Spectral classification 34- 35 I2 h RAh [0/23]? Right Ascension 1950 (hours) 37- 40 F4.1 min RAm [0/60[? Right Ascension 1950 (minutes) 43 A1 --- DE- Declination 1950 (sign) 44- 45 I2 deg DEd [0/90[? Declination 1950 (degrees) 47- 48 I2 arcmin DEm [0/60[? Declination 1950 (minutes) 52- 56 F5.2 mag Vmag ? Visual magnitude (from SIMBAD) 59- 62 A4 --- FeClass *[-+0? ] Iron abundance given in classes 65- 68 A4 --- Qual *[RLI? ()] Quality of best analysis
Note on FeClass: The iron abundance is given in classes of [Fe/H] (log(Fe/H) relative to the abundance of the Sun) : + [Fe/H] ≥ +0.3 overabundance 0 -0.3 < [Fe/H] ≤ +0.3 solar abund. - -0.6 < [Fe/H] ≤ -0.3 under abund. -- -1.0 < [Fe/H] ≤ -0.6 ditto --- -2.0 < [Fe/H] ≤ -1.0 ditto ---- [Fe/H] ≤ -1.0 ditto ? Fe/H either not determined (e.g. in hot stars) or the abundances from the available analyses differ wildly from each other, e.g. in Vega and Deneb. As a consequence those studies which use such a star as a reference, also inherit this question mark! Note on Qual: the codes are: R "RECOMMENDABLE" State-of-the-art analysis or nearly so: use of models to take fully into account the temperature stratification in the atmosphere, use of appropriate line-blanketing and NLTE-effects where necessary. Use of the broadest possible observational data, both in respect of wavelengths (IR...UV where appropriate), and variety (scans, photometry, line profiles). L "LIMITATIONS": Not quite the best possible analysis by today's(1987) means. The analysis is recommendable despite some limitations. Examples: ≡ using un-blanketed models for cool stars, for which line-blanketed models are necessary and available; ≡ using only optical data for hot stars, where the most important part of the spectrum lies in the ultraviolet; ≡ using single slab models('coarse analysis') though model atmospheres are available -- J. Koeppen accepts only differential studies. I "IMPROVEMENT NEEDED": Analysis with serious limitations, such as ≡ absolute curve-of-growth analysis; ≡ very limited observational base. Therefore it could be desirable to have this star re-observed or the data re-analyzed with more modern techniques. ( ) Brackets indicate that this is the only analysis available ? Question mark indicates that information about the analysis method was found to be insufficient to make a definitive choice of the quality grade, e.g.: ≡ paper mentions analysis only very briefly.
(End) Joachim Koeppen, Francois Ochsenbein [Strasbourg Obs.] 05-Mar-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|