[mesa-users] entropy of accreting materials

Masanobu Kunitomo kunitomo at geo.titech.ac.jp
Thu Jun 6 13:30:46 EDT 2013

Dear all,

I am using MESA version 4589 and I have a question about the entropy of the accreting materials.

I have been studying the intense mass accretion ( ~1e-4 Msun/yr ) onto a protostar ( ~10 Jovian mass ).
In this case, the accretion timescale is shorter than the KH timescale,
and I found that the surface entropy highly increases during the accretion.

In MESA, the entropy of the accreting materials is determined by the compressional heating.
Is it possible to just set that the entropy of the accreting material is the same as the stellar surface?

Masanobu Kunitomo

Masanobu Kunitomo
PhD student / JSPS Researcher
Tokyo Institute of Technology
Dept. of Earth and Planetary Sciences
Email: kunitomo at geo.titech.ac.jp

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