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J/A+AS/141/141   8500-8750Å high resolution spectroscopy. II. (Munari+, 2000)

High resolution spectroscopy over 8500-8750Å for GAIA. II. A library of synthetic spectra for Teff≤7500K. Munari U., Castelli F. <Astron. Astrophys. Suppl. Ser. 141, 141 (2000)> =2000A&AS..141..141M (SIMBAD/NED BibCode)
ADC_Keywords: Models, atmosphere ; Spectroscopy Keywords: atlases - surveys - stars: fundamental parameters Abstract: We present a library of synthetic spectra characterized by -2.5≤[Z/Z]≤+0.5, 4.5≤logg≤1.0, and Teff≤7500K computed at the same λ/Δλ=20000 resolving power of the observed spectra given in Paper I (Munari, 1999, Cat. J/A+AS/137/521) for 131 standard stars mapping the MKK spectral classification system. This range of parameters includes the majority of the galactic stars expected to dominate the GAIA target population, i.e. F-G-K-M type stars with metallicity ranging from that of the galactic globular clusters to Population I objects. Extension to Teff>7500K will be given later on in this series. The 254 synthetic spectra presented here are based on Kurucz's codes and line data and have been computed over a more extended wavelength interval (7650-8750Å) than that currently baselined for implementation on GAIA, i.e. the 8500-8750Å. This last range is dominated by the near-IR Ca II triplet and the head of the Paschen series. The more extended wavelength range allows us to investigate the behaviour of other strong near-IR spectral features (severely contaminated by telluric absorptions in ground-based observed spectra) as the K I doublet (7664, 7699Å), the Na I doublet (8183, 8194Å) and the lines of Fe I multiplet N.60 at 8327 and 8388Å. The synthetic spectra support our previous conclusions about the superior performance of the Paschen/Ca II 8500-8750Å region in meeting the GAIA requirements when compared to other near-IR intervals of similar Δλ=250Å. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table2.dat 84 288 Lines that in the interval 8490-8750Å show a residual central intensity F(λ)/F(cont.)≥90%. table2.tex 110 463 LaTeX version of table2
See also: J/A+AS/137/521 : 8500-8750Å high res. spectroscopy. I. (Munari+, 1999) J/A+A/366/1003 : 8500-8750Å high res. spectroscopy. III. (Munari+, 2001) http://ulisse.pd.astro.it/Astro/Atlases : Postscript figures Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 F8.3 0.1nm lambda Wavelength 10- 19 A10 --- Ion Ion 21- 31 A11 --- Mult. Multiplet 33- 37 F5.2 eV EP Energy potential in eV 39- 47 F9.3 cm-1 EP2 Energy potential in cm-1 49- 54 F6.3 --- log(gf) Oscillator strength 56- 59 A4 --- Ref Reference (1) 61- 65 F5.3 --- rcI1 ? Residual central intensity (T=4500K, logg=1.0) 67- 71 F5.3 --- rcI2 ? Residual central intensity (T=4500K, logg=4.5) 73- 77 F5.3 --- rcI3 ? Residual central intensity (T=7500K, logg=2.0) 79- 84 F6.3 --- rcI4 ? Residual central intensity (T=7500K, logg=4.5)
Note (1): BWL: Black et al., 1972ApJ...177..567B FHSW: Figger et al., 1975A&A....43..389F FMW: Fuhr et al., 1988, Cat. VI/72 K88: Kurucz, 1988, Trans. IAU, XXB, McNally M. (ed.). Kluwer, p. 168 K: Kurucz, unpublished and in given in the line lists on CD-ROMs KP: Kurucz and Peytremann, 1975, Cat. VI/10 LAMB: Lambert 1968MNRAS.138..143L MFW: Martin et al., 1988, Cat. VI/72 MULT: estimated by Kurucz from multiplet table intensity NBS: Wiese et al., 1966, NSRDS-NBS 4
Acknowledgements: Ulisse Munari
(End) Patricia Bauer [CDS] 06-Jan-2000
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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