3. Model atmospheres and spectrum synthesis
ATLAS9 model atmospheres (Kurucz 1992) are calculated using the stellar parameters and element compositions derived by Lemke (1989, 1990). The stars and their adopted parameters are listed in Table 1 . The differences between the new models and those based on ATLAS6 (Kurucz 1979) are insignificant.
Table 1. Stellar parameters of the program stars (Lemke 1989)
© European Southern Observatory (ESO) 1997