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Modeling Supernovae Feedback as a Galactic Fountain

21 Jan 2020, 17:00 UTC
Modeling Supernovae Feedback as a Galactic Fountain
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Editor’s note: Astrobites is a graduate-student-run organization that digests astrophysical literature for undergraduate students. As part of the partnership between the AAS and astrobites, we occasionally repost astrobites content here at AAS Nova. We hope you enjoy this post from astrobites; the original can be viewed at astrobites.org.
Title: How do Supernovae Impact the Circumgalactic Medium? I. Large-Scale Fountains in a Milky Way-Like Galaxy
Authors: Miao Li and Stephanie Tonnesen
First Author’s Institution: Center for Computational Astrophysics, Flatiron Institute
Status: Submitted to ApJ
Simulations are a powerful tool in astronomy. Processes that take billions of years in reality can be played out over a much smaller timescale on a computer. The exact time a simulation takes to run depends on a few things, mainly the size and resolution of the simulation, as well as the speed of the computer itself.
The Problem
Artist’s impression of a supernova explosion. [ESO/M. Kornmesser]Resolution is a critical issue when it comes to any simulation; galaxy formation in particular involves both very large and very small processes. In the early years of galaxy formation simulations, researchers found that simulated galaxies weren’t accurately reproducing the observed rates of star formation. They realized that a relatively small ...

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