Sep 12, 2013

Todd Thompson, The Ohio State University

"The Physics of Starburst Galaxies"

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Star formation in galaxies is regulated by feedback processes.  I discuss the physics and implications of momentum injection via radiation pressure on dust grains and supernovae, including predictions for the galaxy-scale winds driven by rapidly star-forming galaxies and the characteristic surface density of star formation in ultra-luminous infrared galaxies.  I discuss the disruption of giant molecular clouds, with implications for their star formation efficiency.  I also present constraints on the magnetic field and cosmic ray energy densities in starbursts derived from the far-infrared--radio correlation and the gamma-ray emission of the local starbursts M82 and NGC 253.

Event Details

Date:
Sep 12, 2013

Time:
3:30–5pm

Location:
4421 Sterling Hall

Notes:
Coffee served at 3:30pm; talk starts at 3:45pm

Speaker Host:
Snezana Stanimirovic

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