2020-07-15

asteroseismic likelihood

Ana Bonaca (Harvard) and I discussed two important successes today (both of them due to Bonaca): We found the issue in our code that caused there to be frequency structure on frequency scales smaller than what you might call the “uncertainty-principle” limit of the inverse of the duration of the survey. It was literally a bug, not a think-o. Which is reassuring. And we do have likelihoods that seem to peak (at least locally) at sensible values of delta-nu, the large frequency difference, in the parlance of asteroseismology. So now there are questions of how to improve performance, and how Bayesian to be, as it were. Frequentism is easier in some respects, harder in others. Lots of engineering to think about!

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