Theoretical Stellar Flux Spectra for F- to K-type Stars (Buser+ 1992)

Details Theoretical Stellar Flux Spectra for F- to K-type Stars (Buser+ 1992) Theoretical Stellar Flux Spectra for F- to K-type Stars (Buser+ 1992)

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ycat.6078....0b&link_type=abstract

VizieR On-line Data Catalog: VI/78. Originally published in: 1992A&A...264..557B

Computer Science

Models: Atmosphere, Stars: Late-Type

Scientific paper

In conjunction with Kurucz' (1979a,b) models for O to G stars, the present models for F- to K- stars provide an extensive, quasi-homogeneous grid of low-resolution theoretical flux spectra for a significant range in stellar parameters covering mostly of the observed HR diagram. The file bklate.dat contains 242 theoretical model atmosphere flux distributions for late-type stars. These flux distributions were calculated by Buser & Kurucz in 1983-5 using published and unpublished models by Gustafsson and his associates. Please refer to the publication (A&A 264, 447) for a full description of the calculations and a discussion of synthetic UBVRI photometry computed from these models. The models cover the following ranges in the parameter space: ----------------------------------------------------------- number fraction of hydrogen xH =0.9 all models turbulent velocity [km/s] vturb =2.00 234 models vturb =5.00 8 models ----------------------------------------------------------- 3750 <= Teff <= 6000 (K) 0.75 <= log.g <= 5.25 (cm/s/s) -3.00 <= [Fe/H] <= 0.50 (dex) ----------------------------------------------------------- Notice that the model sequence does NOT strictly follow an orderly pattern in parameter space, because the present file was composed from several original files having their individual parameter sequences. The last model (#242) is the solar model. Note that the present file still contains 8 models (out of a total of 242) which have turbulent velocities vturb=5.00 km/s, but whose flux distributions have n o t actually been computed for this value of vturb (=5.00 km/s). Hence, for these models, the flux distributions given in the present file are erroneous and should not be used at all. It is suggested that the user d e l e t e them from the file altogether; for the user's convenience, these models are marked on the accompanying list. (1 data file).

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