Today I went to the L2G2 (Local Local Group Group) meeting at Columbia. This meeting started with a dozen of us around a table and is now 50 people packed into the Columbia Astronomy Library! A stand-out presentation was by Grace Telford (Rutgers), who showed beautiful spectroscopy of low-metallicity O stars. From their spectral features and (in one case) surrounding H2 region, she can calculate their production of ionizing photons. This is all very relevant to the high redshift universe and reionization. Afterwards, Scott Tremaine (IAS) argued that The Snail could be created by random perturbations, not just one big interaction.
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