This week is a sprint week for Ana Bonaca (Harvard) and me to work on our asteroseismology likelihood and search, for (possibly even ground-based) irregularly spaced data and heterogenous data. We figured out what we need for inputs to this likelihood function: We need empirical relationships between the nu-max parameter and other aspects of the power spectrum, like the mean heights of the mode peaks, and the width of the mode forest or comb. It seemed daunting at first, but awesomely a lot of what we need is in the Basu & Chaplin book. Most of our current technical struggles relate to the problem that the likelihood function is amazingly, amazingly featured. It's almost adversarial!
Late in the day, Tyler Pritchard (NYU) and I met socially distanced in a park to make final plans for a working meeting on time-domain astrophysics for NYC. The plan is to start to build a community around Vera Rubin LSST (which I just learn got backronymed) that is centered here in New York, and possibly build and operate a real-time event broker. But in this first meeting we want people to really discuss ideas and get something started: How to design online meetings to involve discussions and idea generation? We are learning a lot from our friends at TESS dot science online and AstroHackWeek 2020, both of which worked out new ways to have scientists who aren't physically in the same space—and maybe don't know one another all that well yet—do novel work together.
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