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Figure 1: The amplitude spectrum of Procyon observed by MOST (grey), compared with simulations (black) that included oscillations and granulation at the expected levels. The simulations were made for three different mode lifetimes, both with and without instrumental noise. |
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Figure 2:
Smoothed power density spectra from photometry of Procyon ( MOST), the Sun ( VIRGO, green channel), and an F-type star in the cluster M 67 (ground-based telescopes). Also shown are Balmer-line equivalent-width measurements of Procyon (EW, with 2-![]() |
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Figure 3: Distribution of peaks heights in the MOST amplitude spectrum of Procyon, compared with pure noise and also with three frequency bands in the GOLF solar spectrum (see text). |
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