WROCŁAWSKA STRONA HELAS-a

EVOLUTIONARY TRACKS of 1.6 to 20 MSun stellar models with new OPAL opacities

J. Daszyńska-Daszkiewicz, P. Walczak, Instytut Astronomiczny Uniwersytetu Wrocławskiego

The evolutionary tracks have been calculated for stellar models from 1.8 up to 12 solar masses in the MS and early post-MS evolutionary stages. The results were obtained for Z=0.020 and reffered as A04 (Asplund et al. 2005).

Pobierz:


OPALOPAL opacities (Iglesias, C.A., Rogers, F.J., 1996, ApJ 464, 943)
AGSS09Chemical Composition (Asplund, M., Grevesse, N., Sauval, A.J., Scott, P., 2009, ARA&A 47, 481A)
Xhydrogen abundance
Zheavy element abundance
ACMLT parameter (mixing-length theory); AC = alpha convective = lconv/Hp, where lconv - mixing length, Hp - local pressure scale height
AOconvective overshooting parameter; AO = alpha overshooting = dover/Hp, where dover - convective overshooting
Vinitial equatorial rotational velocity [km/s]
BIBLIOGRAFIA:
  • Iglesias, C.A., Rogers, F.J., 1996, ApJ 464, 943
  • Asplund, M., Grevesse, N., Sauval, A.J., Scott, P., 2009, ARA&A 47, 481A
Webmaster: