Solar-like oscillations in three main sequence stars
Date: 24 October 2008
Satellite: CoRoT
Depicts: Instrumental power spectral densities for HD49933, HD181420 and HD181906
Copyright: Michel, E. et al. [2008]
Fourier power spectral density derived from CoRoT light curves for the three main sequence F stars (A) HD49933, (B) HD181420, (C) HD181906.
For each plot the coloured curves are:
| Black: | instrumental power spectral density with a moving mean applied (4 μHz boxcar) |
| Yellow: | same spectrum highly smoothed (4 times Δ boxcar)* |
| Green: | mean level of the granulation + white noise components |
|
Red: |
mean white noise component level alone |
| Blue: | stellar oscillation mean power density contribution alone. This is the highly smoothed contribution of the solar-like oscillations (spikes in black curve). |
*Δ = the large frequency separation that is the first order regular frequency spacing in the oscillation spectrum
Last Update: 1 September 2019
