CCAPP Seminar: "Does radiation pressure on dust drive galactic winds?" Ben Wibking (OSU Astronomy)

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July 17, 2018
11:30AM - 12:30PM
Location
PRB 4138

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Add to Calendar 2018-07-17 11:30:00 2018-07-17 12:30:00 CCAPP Seminar: "Does radiation pressure on dust drive galactic winds?" Ben Wibking (OSU Astronomy) Popular models used in cosmological hydrodynamical simulations of galaxy formation have invoked direct radiation pressure on dust as a critical driver of galactic winds. We investigate the stability properties of direct radiation pressure on dust due to young stellar populations within starburst disk galaxies and compute observational estimates of galaxy-averaged Eddington ratios. We conclude with an assessment of the prospects for radiation-pressure-driven galactic winds and radiation-pressure-driven galactic turbulence.  PRB 4138 Center for Cosmology and AstroParticle Physics (CCAPP) ccapp@osu.edu America/New_York public
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Popular models used in cosmological hydrodynamical simulations of galaxy formation have invoked direct radiation pressure on dust as a critical driver of galactic winds. We investigate the stability properties of direct radiation pressure on dust due to young stellar populations within starburst disk galaxies and compute observational estimates of galaxy-averaged Eddington ratios. We conclude with an assessment of the prospects for radiation-pressure-driven galactic winds and radiation-pressure-driven galactic turbulence.

 

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