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Physics Colloquium: Gravitational Wave Astronomy: Binary Black Holes and the Virgo Cluster
Start Date: 5/10/2018Start Time: 3:30 PM
End Date: 5/10/2018End Time: 4:30 PM

Event Description
Matthew Benacquista, PhD, NSF

 

The existence of massive stellar-mass black hole binaries has been confirmed by the recent LIGO detections of their inspiral and merger. An estimate of the number of longer-period binaries that are precursors to the merging systems can be inferred from the observed event-rate. The Laser Interferometer Space Antenna (LISA) is a space-based gravitational wave detector that will be sensitive to the low-frequency gravitational waves from this precursor population at distances of up to 20 Mpc. I will provide a brief introduction to gravitational wave astronomy and discuss how the long-period binary black hole population can be used to obtain an independent measurement of the distances to galaxies in the Virgo cluster.
Contact Information:
Name: Professor Steve McMillan
Email: steve@physics.drexel.edu
Location:
Disque Hall, Room 919, 32 South 32nd Street, Philadelphia, PA 19104
Audience:
  • Undergraduate Students
  • Graduate Students
  • Faculty
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