J/A+AS/141/141 8500-8750{AA} high resolution spectroscopy. II. (Munari+, 2000) ================================================================================ High resolution spectroscopy over 8500-8750{AA} for GAIA. II. A library of synthetic spectra for T_eff_<=7500K. Munari U., Castelli F. =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_{sun}_]<=+0.5, 4.5<=logg<=1.0, and T_eff_<=7500K computed at the same {lambda}/{Delta}{lambda}=20000 resolving power of the observed spectra given in Paper I (Munari, 1999, Cat. ) 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 T_eff_>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 (7650-8750{AA}) than that currently baselined for implementation on GAIA, i.e. the 8500-8750{AA}. 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, 7699{AA}), the Na I doublet (8183, 8194{AA}) and the lines of Fe I multiplet N.60 at 8327 and 8388{AA}. The synthetic spectra support our previous conclusions about the superior performance of the Paschen/Ca II 8500-8750{AA} region in meeting the GAIA requirements when compared to other near-IR intervals of similar {Delta}{lambda}=250{AA}. File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table2.dat 84 288 Lines that in the interval 8490-8750{AA} show a residual central intensity F({lambda})/F(cont.)>=90%. table2.tex 110 463 LaTeX version of table2 -------------------------------------------------------------------------------- See also: J/A+AS/137/521 : 8500-8750{AA} high res. spectroscopy. I. (Munari+, 1999) J/A+A/366/1003 : 8500-8750{AA} 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. 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. LAMB: Lambert 1968MNRAS.138..143L MFW: Martin et al., 1988, Cat. 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