On the pre-main-sequence evolution of stars with mass accretion

Details On the pre-main-sequence evolution of stars with mass accretion On the pre-main-sequence evolution of stars with mass accretion

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.228..289b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 228, Sept. 15, 1987, p. 289-292.

Astronomy and Astrophysics

Astronomy

1

Pre-Main Sequence Stars, Stellar Evolution, Stellar Mass Accretion, Stellar Models, Polytropic Processes, Stellar Gravitation

Scientific paper

The evolutionary path for a pre-main-sequence star accreting mass has been constructed by an analytical method by assuming a polytropic stellar model with no nuclear energy source. The result is found to be in fairly good agreement with that of Bhattacharjee & Williams (1980) obtained by detailed numerical calculation. It is also found that the energy supplied to the star by the accreted material is mostly gravitational. The thermal energy content of the on-falling matter has no significant effect on the evolution.

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