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Event Detail Information

Astronomy Colloquium: "Cosmic Rays and Their Role in Galaxies" - Ellen Zweibel, University of Wisconsin


Ellen Zweibel, University of Wisconsin

Date Apr 22, 2014
Time 3:45 pm  

Astronomy 134


Department of Astronomy

Event type Colloquia
Views 3100

Cosmic rays comprise only about a billionth of interstellar particles by number, but they carry as much energy as the thermal particles. Except for very rare direct collisions, their interaction with the interstellar medium is entirely mediated  by the galactic magnetic field. This interaction exchanges energy and momentum between the background medium and the cosmic rays, can heat the interstellar gas, and can drive a galactic wind.

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