Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996acaps..16...49y&link_type=abstract
Acta Astrophys. Sin., Vol. 16, No. 1, p. 49 - 56
Astronomy and Astrophysics
Astrophysics
Stellar Structure: Opacities, Stellar Evolution: Hr Diagrams
Scientific paper
The updated Livermore Opacity tables (OPAL) and the corresponding abundance data have been used to compute the non-conservation evolutionary models of three population I stars with different initial mass. A detailed comparison between the OPAL and previous Los Alamos Opacity (LAOL) results have been made. The main results are: (1) The use of OPAL produces appreciable changes in the HR diagrams for low-, intermediate-mass, and massive stars. In all cases, the tracks shift to significantly lower luminosity and effective temperature with respect to those by the old LAOL models. (2) The lifetimes in the H and He burning phases have increased greatly. (3) For low mass stars, the size of the convective core and H-burning core is smaller. While for intermediate mass and massive stars, their convective and burning core are slightly larger. (4) The Tc-ρc relation is insensitive to the differences in opacity tables.
Huang Runqian
Yuan Yongquan
No associations
LandOfFree
The influences of OPAL opacities on stellar structure and evolution models. does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The influences of OPAL opacities on stellar structure and evolution models., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The influences of OPAL opacities on stellar structure and evolution models. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-967438