Open AccessModelling pulsation amplitudes of ξ Hydrae
Author(s) -
Houdek G.,
Gough D. O.
Publication year - 2002
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2002.06024.x
Subject(s) - physics , amplitude , astrophysics , excitation , excited state , astronomy , atomic physics , optics , quantum mechanics
Amplitudes of stochastically excited oscillations of models of ξ Hydrae (HR4450) are presented. The theoretical results are compared with the recent measurements by an international group of astronomers announced in the ESO press release 10/02. Using a stochastic excitation model we find fair agreement between estimated velocity amplitudes and the values quoted in the ESO press release.