I talked to Jason Hunt (Flatiron) this afternoon about things we might do with the ESA Gaia early-DR3 data (December 2020), which will be similar to DR2 but with improved parallaxes and proper motions. In 2022 we'll get the complete DR3, which contains lots of qualitatively new data and measurements. But in the meantime, eDR3 is great for projects that we did—or tried to do—in DR2 but were limited by proper-motion precisions (especially, since proper motions get better by a lot). One such project is work Hunt did with Bovy on velocity substructure in the disk. So I pitched to him the MySpace project that Price-Whelan and I formulated a while back. I have an intuition that it should work well with the new data.
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