Today Michele Bannister (Belfast) showed up. We spent time talking about how asteroids are characterized in time-domain imaging surveys. The idea is to make a fictitious absolute magnitude, which is what the asteroid would look like if it was simultaneously 1 AU from the Sun and 1 AU from the Earth, and observed with the Sun and Earth both getting it from the same angle. That's not real! We discussed how we might improve that situation.
I also spoke with Lauren Anderson (Flatiron) about how we might reduce the dimensionality of cosmological simulations of galaxies to a small parameterization of what's possible. The idea is to get a not-too-complex parameterization of the triaxiality of galaxy dark-matter halos and their dependences on time. I have a vision here, but it isn't clear it is possible to execute. We discussed the issues of using existing simulations or running our own.
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