2006-08-12

star-formation rates, angular momenta

Yesterday Bhardwaj and I measured the average current star formation rates in her samples of elliptical galaxies, using the H-alpha line luminosity, as a function of total galaxy stellar luminosity (stellar mass). Her next job is to compare these estimates to the star-formation rate estimates from GALEX UV imaging, and from the suite of models that explain the total galaxy spectral energy distributions.

Zolotov and I figured out the first-year physics problem of estimating the angular momentum vector for a galaxy disk in a numerical simulation of a forming galaxy, and transformed all the particle positions and velocities into the simulation equivalent of galactic coordinates.

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