A&A 420, 289-305 (2004)
MAFAGS-OS: New opacity sampling model atmospheres for A, F and G stars
I. The model and the solar fluxF. Grupp
Universitäts Sternwarte München, Scheinerstr. 1, 81679 München, Germany
(Received 5 January 2004 / Accepted 19 February 2004 )
We present a new opacity sampling model atmosphere code, named MAFAGS-OS. This code, designed for stars reaching from A0 down to G9 on a solar and metal poor main sequence and up to an evolutionary stage represented by the turnoff is introduced in its basic input physics and modelling techniques. Fe I bound-free cross-sections of Bautista (1997) are used and convection is treated according to Canuto & Mazzitelli (1991). An -parameter for the efficiency of convection of 0.82 is used as determined by Bemkopf (1998) from stellar evolution requirements.
Key words: methods: numerical -- Sun: infrared -- Sun: photosphere -- stars: atmospheres -- stars: fundamental parameters
© ESO 2004