GALEX, SDSS, and Spitzer

Today was all talk all the time. We had David Schiminovich and Ben Johnson (no, not any of these Ben Johnsons) down from Columbia to discuss Ben's recent results on the inter-comparison of GALEX, SDSS, and Spitzer photometry and spectroscopy of normal galaxies. Ben finds that he can separate dust and age very clearly (though they do not separate clearly in optical bands), and that there is great promise for understanding galaxy spectral energy distributions from the far UV all the way through to the far IR. At the same time, he confirms a result of ours that there is diversity among galaxies in the mid-IR at low luminsoities. This motivates me to get cracking on my K corrections for Spitzer, a product that I am (famously) contractually obliged to deliver. We discussed how to proceed on that, especially the desideratum (?) that the spectra we fit not violate energy conservation!