A Two-Zone Model for the Study of Nuclear Shell Burning on Accreting White Dwarfs

Details A Two-Zone Model for the Study of Nuclear Shell Burning on Accreting White Dwarfs A Two-Zone Model for the Study of Nuclear Shell Burning on Accreting White Dwarfs

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.169..193j&link_type=abstract

Astrophysics and Space Science, Volume 169, Issue 1-2, pp. 193-195

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

A two-zone model for the analysis of nuclear shell burning on accreting degenerate dwarfs is developed. The model consists of two thin shells in a plane-parallel approximation: an accreted hydrogen zone on the top and a pure helium zone on the bottom, generated by hydrogen burning. The core of the star is isothermal and does not evolve with time. The physical properties (density, temperature, and pressure) of the shells are obtained and an analysis of some correlations between them and the mass accretion rate, the chemical composition of the accreted mass, and the heat flux from core is done. The interaction between both shells is also analyzed.

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