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 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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 48 711 Summary of spectra
dat/* . 711 Spectra
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Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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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
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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:
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Records Format Units Label Explanations
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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
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Acknowledgements: Maria Lucia Malagnini
(End) Patricia Bauer [CDS] 02-Oct-1997