oscillations in giant stars

Hou and I spoke about his attempts to model jitter or velocity variability in giant stars with a Gaussian-process model of damped, randomly forced oscillations. He can't confirm reported oscillations; is this because our model is deficient, the code is broken, or because those oscillations aren't there? I hope it is the latter!

1 comment:

  1. Interesting. If the oscillations are inferred to be absent, what "term" is taking up the slack? White noise? That would be surprising. Do you have a red noise term in the model?