ICATE 21876
INSTITUTO DE CIENCIAS ASTRONOMICAS, DE LA TIERRA Y DEL ESPACIO
Unidad Ejecutora - UE
artículos
Título:
FUNDPAR: A program for deriving fundamental parameters from equivalent widths
Autor/es:
SAFFE, CARLOS
Revista:
REVISTA MEXICANA DE ASTRONOMÃA Y ASTROFÃSICA
Editorial:
UNIV NACIONAL AUTONOMA MEXICO
Referencias:
Lugar: México D.F.; Año: 2010 vol. 47 p. 3 - 14
ISSN:
0185-1101
Resumen:
We implemented a Fortran code that determines fundamental parameters of solar type stars from a list of Fe line equivalent widths. The solution should verify three conditions in the standard method: ionization equilibrium, excitation equilibrium and independence between metallicity and equivalent widths. Solar-scaled Kurucz model atmospheres with NEWODF opacities are calculated with an independent program. Parameter files control different details, such as the mixing length parameter and the overshooting. FUNDPAR derives the uncertainties following two methods: the criterion of Gonzalez & Vanture (1998) and the dispersion using the Chi2 function. The code uses the 2009 version of the MOOG program. The results derived with FUNDPAR are in agreement with previous determinations in the literature. The program is freely available from the web.
