group meetings

At my morning group meeting, Will Farr (Birmingham) told us about CARMA models and their use in stellar radial velocity analysis. His view is that they are a possible basis or method for looking (coarsely) at asteroseismology. That meshes well with things we have been talking about at NYU about doing Gaussian Processes with kernels that are non-trivial in the frequency domain to identify asteroseismic modes.

In the afternoon group meeting, we had a very wide-ranging conversation, about possible future work on CMB foregrounds, about using shrinkage priors to improve noisy measurements of SZ clusters and other low signal-to-noise objects, We also discussed the recent Dragonfly discovery of a very low surface-brightness galaxy, and whether it presents a challenge for cosmological models.

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