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UID:UW-Physics-Event-2660
DTSTART:20120503T203000Z
DTEND:20120503T220000Z
DTSTAMP:20240319T020012Z
LAST-MODIFIED:20120416T195954Z
LOCATION:4421 Sterling Hall
SUMMARY:Here be dragons :The Dynamic Radio Sky\, Astronomy Colloquium\
, Geoffrey Bower\, University of California - Berkeley
DESCRIPTION:Radio variability probes a wide range of astrophysical phe
nomena from the solar system to the early Universe including black hol
es\, neutron stars\, gravitational wave sources\, and relativistic sho
cks from collapsing stars. Radio follow-up of events discovered at opt
ical\, X-ray\, and gamma-ray wavelengths demonstrates a rich phenomeno
logy but we lack a systematic and sensitive view of radio variability.
Our efforts in recent years with the Very Large Array (VLA) and the
Allen Telescope Array (ATA) have provided the beginnings of an unbiase
d exploration on time scales from milliseconds to decades. Powered by
development of unique digital instrumentation\, new algorithms\, and
new survey strategies\, our surveys have defined the shape of next gen
eration radio telescopes and surveys. In particular\, these surveys a
re shaping our understanding of radio supernovae\, tidal disruption ev
ents\, and gravitational-wave sources. Planned surveys with newly com
missioned national facilities such as the Expanded Very Large Array (E
VLA)\, the Australian SKA Pathfinder (ASKAP)\, and the South African M
eerKAT telescopes coupled with the development of new instrumentation
will extend our reach into new parameter space.
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URL:https://www.physics.wisc.edu/events/?id=2660
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