March 5, 2015
4:00PM
-
5:00PM
2015 McPherson Laboratory
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2015-03-05 16:00:00
2015-03-05 17:00:00
Astronomy Colloquium - Eliot Quataert
The Surprisingly Dynamic Last Years in the Lives of Massive StarsEliot Quataert (UC Berkeley)In the last few years of the lives of massive stars, fusion in the core of the star produces a nuclear power that greatly exceeds the Eddington luminosity. This drives vigorous convection in numerous core and shell burning phases. I describe the surprising effect that waves excited by such convection can have on the properties of massive stars in the years leading up to core collapse. Wave transport of energy into the stellar envelope can power prodigious mass loss in the last few years of stellar evolution. And angular momentum transport by waves excited during shell burning phases may well determine the angular momentum of the pre-supernova core, setting the birth spins of compact objects. Coffee & Donuts will be served at 3:30 in MP4054
2015 McPherson Laboratory
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2015-03-05 16:00:00
2015-03-05 17:00:00
Astronomy Colloquium - Eliot Quataert
The Surprisingly Dynamic Last Years in the Lives of Massive StarsEliot Quataert (UC Berkeley)In the last few years of the lives of massive stars, fusion in the core of the star produces a nuclear power that greatly exceeds the Eddington luminosity. This drives vigorous convection in numerous core and shell burning phases. I describe the surprising effect that waves excited by such convection can have on the properties of massive stars in the years leading up to core collapse. Wave transport of energy into the stellar envelope can power prodigious mass loss in the last few years of stellar evolution. And angular momentum transport by waves excited during shell burning phases may well determine the angular momentum of the pre-supernova core, setting the birth spins of compact objects. Coffee & Donuts will be served at 3:30 in MP4054
2015 McPherson Laboratory
America/New_York
public
The Surprisingly Dynamic Last Years in the Lives of Massive Stars
Eliot Quataert (UC Berkeley)
In the last few years of the lives of massive stars, fusion in the core of the star produces a nuclear power that greatly exceeds the Eddington luminosity. This drives vigorous convection in numerous core and shell burning phases. I describe the surprising effect that waves excited by such convection can have on the properties of massive stars in the years leading up to core collapse. Wave transport of energy into the stellar envelope can power prodigious mass loss in the last few years of stellar evolution. And angular momentum transport by waves excited during shell burning phases may well determine the angular momentum of the pre-supernova core, setting the birth spins of compact objects.
Coffee & Donuts will be served at 3:30 in MP4054