the dawn of gravitational wave...
TRANSCRIPT
40 Scientific American, October 2013 Photograph by Tktk Tktk
sad1013Ande3p.indd 40 8/21/13 1:12 PM
The dawn of gravitational wave astronomy
Neil J. CornishMontana State University
Gravity Research in the Rockies
www.tetongravity.com
www.montana.edu/xgi
What is eXtreme Gravity?
Gravity Strength
eXtreme Gravity eXplorers
Ripples in Spacetime
h+ h×
h×
h+
∆L(t) ∼ h(t) L
Detecting Gravitational Waves
Gravitational Wave Telescopes
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time (seconds)
Early Morning, September 14 2015
reconstruction of the signal
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Made @ MSU
Rai Weiss
GW150914: A story 40+ years in the making
Kip Thorne Ron Drever
Rai Weiss Kip Thorne Ron Drever
GW150914: A story 40+ years in the making
Earlier claims of detection
Rai Weiss, 1972 design for what became LIGO
R. E. Vogt, R. W. P. Drever, K. S. Thorne, F. J. Raab and R. Weiss (Caltech & MIT), “Construction, operation, and supporting
research and development of a Laser Interferometer Gravitational-wave
Observatory”, proposal to NSF, 1989
LIGO Timeline• Conceived in the early 70’s, Chapman, Forward, Weiss
• 1984, Caltech and MIT form LIGO collaboration, jointly lead by Drever, Weiss and Thorne
• 1989 proposal to the National Science Foundation
• 1991 construction approved
• 1998 facility construction complete
• 2002 first observing run for the first generation detectors
• 2015 first observing run for the second generation detectors
LIGO sensitivity over time
Einstein's Unfinished Symphony: Listening to the Sounds of Space-Time by Marcia Bartusiak, 2000
Black Hole Blues and Other Songs from Outer Space by Janna Levin 2016
37 mm 39 m
Where will Gravitational Wave Astronomy be in 400 years?