Supersonic convection in the stellar interiors

Details Supersonic convection in the stellar interiors Supersonic convection in the stellar interiors

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006acasn..47..144c&link_type=abstract

Acta Astronomica Sinica, vol. 47, no. 2, p. 144-152

Astronomy and Astrophysics

Astronomy

2

Convection, Stars: Evolution, Stars: Giants, Stars: Supergiants

Scientific paper

According to the result of the numerical simulation of the traditional mix-length theory, supersonic convection would occur on the top of convective regions of both the yellow-and-red giants and super giants. This, however, is not self-consistent with the local convection theory. Therefore, this paper is devoted to analyze in full detail what has caused the formation of supersonic convection, and at the same time to present a plot of the supersonic convective region on the H-R diagram based on the evolutionary tracks of population I stars. The main results of this paper are as follows: during the process of evolution, (1) no supersonic convection occurs in low mass star; (2) for the intermediate mass stars, supersonic convection chiefly occurs in the region of 3.6

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