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This Week at Physics

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Events on Friday, May 16th, 2014

Special Friday Colloquium
The interplay between condensation and chemistry in the formation of solid particles in the ejecta of supernova explosions
Time: 3:30 pm
Place: 4421 Sterling Hall
Speaker: Davide Lazzati
Abstract: Dust is a minor component of the interstellar medium but
plays a major role in the evolution of the universe and on our
capability to observe it. Despite recent advances, some fundamental aspects of the physics of formation of cosmic dust are still poorly understood. This leads, for example, to theoretical predictions of dust yields from supernova explosions that are at least two orders of magnitude larger than observed. In this talk I will use carbonaceous dust formation in core-collapse supernovae as a case study to discuss
the current status and recent advances on our understanding of the
physical and chemical mechanisms at the base of the gas-solid phase transition in the astrophysical environment. I will discuss different approaches to the problem and compare their results to available observations. I will conclude by introducing a new framework for studying the outcomes of collisions between dust agglometates to study their compactification, growth, and fragmentation.

Host: Brian Morsony
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Department of Physics
Undergraduate Majors Reception
Time: 5:00 pm
Place: 2241 Chamberlin Hall
Speaker: Department of Physics
Abstract: The department will be having reception for the undergraduate majors in Physics and their parents. Please RSVP if you plan to attend the event.

Please RSVP at:
https://www.physics.wisc.edu/GraduationRecognitionRSVP2014
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