CMFGEN - GREAT-ESF Stellar Atmospheres in the Gaia Era ...

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CMFGEN - GREAT-ESF Stellar Atmospheres in the Gaia Era ...

1. The radiative transfer code CMFGEN

Cons

✦ momentum equation of the wind is not solved; velocity law has to be

assumed a priori (but can be constrained from observed line profiles).

(Martins+ 2005)

✦ computational time can be large compared to other codes such as

FASTWIND (Puls+ 05; Sergio Simon Diaz & Alex de Koter’s talks);

typical CMFGEN run takes 10-20 hours on 1 CPU; decreases by ~60%

with OPENMP (4 cores).

Jose Groh - Modeling the wind and photosphere of massive stars with CMFGEN GREAT-ESF workshop, Brussels, 24 June 2011

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