2014 | 2013 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 | 2000 | 1999 | 1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990 | 1989 | 1988 | 1987 | 1986 | 1985 | 1984 | 1983 | 1982 | 1981 | 1980 | 1979 | 1978 | 1977 | 1976 | 1975 | 1974 | 1973 | 1972 | 1971 | 1970 | 1969 | 1968 | 1967 | 1966 | 1965 | 1964 | 1963 | 1962 | 1961 | 500 | 76 | 0

A calibration of the 85 Peg binary system

Authors: J. Fernandes; Morel, P.; Lebreton, Y.

Ref.: Astronomy and Astrophysics 392, 529-533 (2002)

Abstract: e have calibrated the initial abundances, age and mixing-length parameters of the visual binary system 85 Pegasi. We obtain an age t85 Peg=9 345+/-500 Myr, masses mA=0.88+/-0.01 Msun and mB=0.55+/-0.02 Msun, an initial helium mass fraction Yi=0.25+/-0.01, an initial metallicity [Fe/H]i=-0.185+/-0.054 and mixing-length parameters LambdaA =1.80+/-0.05 and LambdaB =2.14+/-0.10. We find that, as already proposed, 85 Peg B is itself a binary. The mass of the unseen companion is mb~ 0.11 Msun.

DOI: 10.1051/0004-6361:20020962

URL: cdsads.u-strasbg.fr