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Detailed Description of J/A+AS/126/267

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The catalogue can be queried from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/A+AS/126/267

This standardized document follows the rules of the Standard Description for Astronomical Catalogues. For those having to work on this catalogue using FORTRAN programs, this ReadMe file can be transformed into a f77-compliant program which reads the files making up this catalogue, in two versions: either a f77 program loading whole files into arrays, or a f77-program reading each data file line by line.


J/A+AS/126/267      Atlas of Synthetic Spectra     (Chavez+ 1997)
================================================================================
An Atlas of high resolution synthetic spectra in the wavelength
region 4850-5400 A
       Chavez M., Malagnini M. L., Morossi C.
      <Astron. Astrophys. Suppl. Ser. 126, 267 (1997)>
      =1997A&AS..126..267C
================================================================================
ADC_Keywords: Spectroscopy ; Stars, late-type

Keywords: stars: atmospheres - stars: late-type


Description:
    A library  of 711 cool star synthetic  spectra in the wavelength range
    485-540nm  is presented.  The coverage in  the parameter space span in
    surface  gravity from 1.0 to 5.0dex at a step of 0.5dex.  The range in
    effective temperature covers from 4000 to 6000K at a step of 250K plus
    the  spectra for 7000 and 8000K.  The global chemical compositions are
    [M/H]=-1.0, -0.5, 0.0, +0.1, +0.2, +0.3 and +0.5. The adopted value of
    microturbulent  velocity is  2km/s but  for two  sets of  nine spectra
    each. All the spectra are computed at a resolving power =250,000.  For
    each wavelength point the continuum and line blanketed absolute fluxes
    per unit frequency are given.

File Summary:

FileName Lrecl Records Explanations
× ReadMe 80 . This file × list.dat 48 711 Summary of spectra × dat/* 0 711 Spectra
Byte-by-byte Description of file: list.dat
Bytes Format Units Label Explanations
1- 12 A12 --- File Filename (in subdirectory dat) 16- 19 I4 K Teff [3500/8000] Effective temperature 21- 24 F4.2 [cm/s2] logg [1/5] Surface gravity 26- 29 F4.1 --- [M/H] [-1/0.5] Metallicity 32- 34 F3.1 km/s Vtur [0/2] Turbulent velocity 36- 39 F4.2 --- L/H [1.25] Microturbulent parameter 42- 47 I6 --- RP [250000] Resolving power
Struture of the spectra (in dat/*): The header in each spectrum (four lines) contains the values of effective temperature, surface gravity, metallicity, microturbulent velocity, convection parameter and resolving power. The following lines have the format: -------------------------------------------------------------- Records Format Units Label Explanations -------------------------------------------------------------- 1- 11 F11.3 0.1nm Lambda Wavelength (A) 13- 22 E10.4 10+23Jy f(nu) Line blanketed flux 24- 33 E10.4 10+23Jy Continuum Continuum flux -------------------------------------------------------------- Acknowledgements: Maria Lucia Malagnini ================================================================================ (End) Patricia Bauer [CDS] 02-Oct-1997

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