| Preprint typeset using LATEX style emulateapj v. 11/12/01 arXiv:astro-ph/0508609 v1 29 Aug 2005 SUBMITTED TO APJ SOLAR-LIKE OSCILLATIONS IN«CENTAURI B (2008) | |||||||||||||
Abstract | |||||||||||||
| We have made velocity observations of the star«Cen B from two sites, allowing us to identify 37 oscillation modes with l = 0–3. Fitting to these modes gives the large and small frequency separations as a function of frequency. The mode lifetime, as measured from the scatter of the oscillation frequencies about a smooth trend, is similar to that in the Sun. Limited observations of the starÆPav show oscillations centred at 2.3 mHz with peak amplitudes close to solar. We introduce a new method of measuring oscillation amplitudes from heavilysmoothed power density spectra, from which we estimated amplitudes for«Cen A and B,¬Hyi,ÆPav and the Sun. We point out that the oscillation amplitudes may depend on which spectral lines are used for the velocity measurements. | |||||||||||||
Publication details | |||||||||||||
| |||||||||||||