I continued working on my document about release of data and code. Twitter (tm) continues awesome.
Research highlight of the day was a long discussion with Megan Bedell (Chicago) about the consistency of exoplanet-host radial-velocity measurements order-by-order in a many-order high-resolution echelle spectrograph. The measurements are made by cross-correlation with a binary (ugh) template, and some orders are consistently high and some are consistently low, and we very much hope there are other more subtle regularities to exploit. Why are there these discrepancies? Probably because the model is inflexible and wrong. Unfortunately we don't have access to it directly (yet) so we have to live with the cross-correlation functions. We discussed simple methods to discover regularities in the order-by-order offsets and results, and sent Bedell off with a long to-do list.
I ended the day with a long conversation with Kat Deck (Caltech). Among other things, we discussed what we would do with our lives if exoplanet research evolves into nothing other than atmosphere transmission spectroscopy and modeling. Of course neither of us considers this outcome likely!