Stellar atmospheric parameters for the giant stars µ Pegasi and Pegasi
Received 3 August 1998 / Accepted 27 August 1998
Profiles of the strong lines Ca II 8542 Å and Mg I 8806 Å together with regions containing Ca I, Fe I and Fe II lines in the spectra of the G8 giant stars µ Peg and Peg have been recorded at high resolution and with signal/noise . The wings of the strong lines and the full profiles of intermediate strength lines are consistent with an LTE analysis based on the following sets of atmospheric parameters:
These results, together with Hipparcos parallaxes and recently published photometry, lead to estimates of luminosity, mass and radius. Inferred angular diameters are consistent with a well established empirical relationship but disagree with direct measurements by an interferometric technique.
Key words: stars: fundamental parameters stars: individual: Peg stars: individual: Peg
Send offprint requests to: G. Smith
© European Southern Observatory (ESO) 1998
Online publication: October 21, 1998