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VI/65          Evolutionary models of evolved stars          (Dorman+ 1993)

Ultraviolet Radiation from Evolved Stellar Populations. I. Models Dorman B., Rood R.T., O'Connell R.W. <Astrophys. J. 419, 596 (1993)> =1993ApJ...419..596D
ADC_Keywords: Models, evolutionary Description: Tables are given for all of the evolutionary tracks in the paper, which represent the evolution from the Zero-Age Horizontal Branch to a point either late in the AGB evolution, or in many cases to a point on the white dwarf cooling sequences. There are sequences for 8 different compositions. The original grid of tracks comprises several tens of thousands of models. In order to make this grid easy to use while not seriously compromising the representation of the evolution, much shorter tables have been derived for the general user. The data given here have been derived from these original calculations by linear and quadratic interpolation routines. For the HB phase, the evolution is represented at a fixed set of core helium values. After core exhaustion, the table points are at fixed intervals along the evolutionary path. The compositions in the tables are denoted as follows: -------------------------------------------------- Filename YHB [Fe/H] [O/Fe] Mc -------------------------------------------------- g14.dat 0.245 -2.26 0.50 0.495 e64.dat 0.247 -1.48 0.60 0.485 j63.dat 0.257 -0.47 0.23 0.475 z22.dat 0.288 +0.00 0.00 0.469 z42.dat 0.292 +0.39 0.00 0.464 z62.dat 0.289 +0.58 0.00 0.458 yz42.dat 0.356 +0.43 0.00 0.454 yz62.dat 0.459 +0.71 0.00 0.434 ------------------------------------------------- The columns give respectively: 1 Age in Myr since ZAHB 2 Central helium fraction 3 log Te (effective temperature, Kelvin) 4 log L (surface luminosity) in solar units 5 log g (surface gravity, cgs units) 6 log R (radius, cm) 7 Mass at peak energy production rate of hydrogen burning shell (solar units) 8 log Tc (central Temperature, Kelvin) 9 log rho_c (central density cgs units) The fortran format for the data tables is: '(f10.5,8(2x,f7.4))' for the first header line the format is: '("Track: ",i4,"lines Mass = ",f5.3," [Fe/H] = ",f5.2," [O/Fe] = ", f5.2," Y = ", f5.3)' while the second header line containing the column titles can of course be read as a character string ( format = '(a)' ). More specialized data is available in some cases from the first author, who should be contacted if other data are needed (see AAS directory for current address.) File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file g14.dat 82 2014 Y=0.245 [Fe/H]=-2.26 [O/Fe]=0.50 Mc=0.495 e64.dat 82 1695 Y=0.247 [Fe/H]=-1.48 [O/Fe]=0.60 Mc=0.485 j63.dat 82 1351 Y=0.257 [Fe/H]=-0.47 [O/Fe]=0.23 Mc=0.475 z22.dat 82 1408 Y=0.288 [Fe/H]=+0.00 [O/Fe]=0.00 Mc=0.469 z42.dat 82 1118 Y=0.292 [Fe/H]=+0.58 [O/Fe]=0.00 Mc=0.464 z62.dat 82 1171 Y=0.289 [Fe/H]=+0.58 [O/Fe]=0.00 Mc=0.458 yz42.dat 82 1170 Y=0.356 [Fe/H]=+0.43 [O/Fe]=0.00 Mc=0.454 yz62.dat 82 1101 Y=0.459 [Fe/H]=+0.71 [O/Fe]=0.00 Mc=0.434 tofits.sh 80 68 Generates a FITS file with all models on a Unix station models.fih 76 75 FITS header for all models models.dat 106 10756 Table with all models
Summary of all models: A file "models.dat" including all data can be generated on a Unix station corresponding to the "Byte-per-byte Description" below with the following shell command: cat *.dat | awk '/^Track/{Y=$15;Fe=$9;O=$12;M=$6;next}/^ *Age/{next} {printf("%6s %5s %5s%6s",Y,Fe,O,M);print;}' > models.dat See also: VI/54 : Horizontal Branch Stellar Model Calculations (Dorman 1992) Byte-by-byte Description of file: models.dat
Bytes Format Units Label Explanations
2- 6 F5.3 --- YHB He composition 8- 12 F5.2 [Sun] [Fe/H] composition (log scale relative to Sun) 14- 18 F5.2 [Sun] [O/Fe] O composition (log scale relative to Sun) 20- 24 F5.3 solMass Mass [0.44/0.9] Total mass 26- 34 F9.5 Myr Age since Zero-Age Horizontal Branch (ZAHB) 37- 43 F7.4 --- Yc Central helium fraction 46- 52 F7.4 [K] log.Te Effective temperature 55- 61 F7.4 [solLum] log.L Surface luminosity 64- 70 F7.4 [cm/s2] log.g Surface gravity (cgs units) 73- 79 F7.4 [cm] log.R Radius 82- 88 F7.4 solMass Msh Mass at peak energy production rate of hydrogen burning shell 91- 97 F7.4 [K] log.Tc Central temperature 100-106 F7.4 [g/cm3] log.rho_c Central density
History: * 18-Apr-1994: First version * 11-Jan-2007: file models.dat added
(End) Ben Dorman [Univ. of Virginia], Francois Ochsenbein [CDS] 18-Apr-1994
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

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