J/A+AS/122/51 B to G stars calibration in Geneva photometry (Kunzli+, 1997)
A calibration of Geneva photometry for B to G stars in terms of Teff, logg, and [M/H] Kunzli M., North P., Kurucz R.L., Nicolet B. <Astron. Astrophys. Suppl. Ser. 122, 51 (1997)> =1997A&AS..122...51K (SIMBAD/NED BibCode)
ADC_Keywords: Photometry, Geneva ; Models, atmosphere Keywords: stars: general, atmosphere, fundamental parameters Description: We have used recent Kurucz models and many standard stars to revise previous calibrations of the Geneva photometric parameters in terms of Teff, logg, and [M/H]. In addition, new parameters pT and pG were defined, which are the Geneva equivalents of Stromgren's a and r parameters and allow to estimate Teff and logg for stars with intermediate temperature (spectral type A0-A3). A fortran code (calib.f) has been written, which applies our calibration to stars measured in the Geneva system. A conspicuous change in slope appears in the grid d vs B2-V1. It seems to be linked with the onset of convection in the superficial layers of the star's envelope. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file calib.doc 80 54 *Notes about the code calib calib.f 119 1185 Source file of the code calib (FORTRAN program) bcdci 41 5815 grids d vs B2-V1 for all metallicities bcmci 41 2942 Grids m2 vs B2-V1 for all gravities ptpgm10i 52 216 Grids pG vs pT for [M/H]=-1. ptpgp00i 52 238 Grids pG vs pT for [M/H]= 0. ptpgp10i 52 257 Grids pG vs pT for [M/H]=+1. xcycm10i 58 360 Grids Y vs X for [M/H]=-1 xcycp00i 58 375 Grids Y vs X for [M/H]= 0. xcycp10i 58 410 Grids Y vs X for [M/H]=+1. kurgen.col 69 3804 The Geneva colours (uncorrected) of the Kurucz models
Note on calib.doc: bcdci, bcmci, ptpgm10i, ptpgp00i, ptpgp10i, xcycm10i, xcycp00i and xcycp10i files contain the numerical values of the corrected grids and are necessary to use the code calib.
Byte-by-byte Description of file: kurgen.col
Bytes Format Units Label Explanations
2- 7 F6.0 K Teff Effective temperature 11- 14 F4.2 [cm/s2] logg Surface gravity 17- 21 F5.2 [Sun] [M/H] Metallicity 24- 29 F6.3 mag [U-B] Geneva [U-B] index 32- 37 F6.3 mag [V-B] Geneva [V-B] index 41- 45 F5.3 mag [B1-B] Geneva [B1-B] index 49- 53 F5.3 mag [B2-B] Geneva [B2-B] index 56- 61 F6.3 mag [V1-B] Geneva [V1-B] index 64- 69 F6.3 mag [G-B] Geneva [G-B] index
Courtesy: Marc Kunzli Notes: A new version of calib.f was installed on 26-Jun-1997, by the author.
(End) Patricia Bauer [CDS] 19-Aug-1996
|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|