Type: 
Colloquium
Date-Time: 
Monday, February 3, 2014 - 16:00 to 17:00
Location: 
Weniger 149
Event Speaker: 
Prof. Davide Lazzati, Oregon State University
Local Contact: 
Zwolak
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 aspects of the
physics of cosmic dust are still poorly understood. This leads, for
example, to theoretical predictions of dust yields from supernova
explosions that are two orders of magnitude larger than observed. In
this talk I will use 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. I will discuss different approaches to
the problem and compare their outcomes to available observations. I
will conclude by highlighting some interesting parallels between
astrophysical dust condensation and aggregation and other areas of
active research, such as condensation nuclei and the role of aerosols
in climate.