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June 15, 2016

GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence

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February 18, 2016

The Right Place At The Right Spacetime

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February 11, 2016

Observation of Gravitational Waves from a Binary Black Hole Merger

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Center for Gravitation and Cosmology hosts Alt Grav Workshop

Posted by Sara Gil-Casanova on June 01, 2010

Over 40 scientists attended the Alt Grav Workshop, “Gravitational Wave Tests of Alternative Theories of Gravity in the Advanced Detector Era", hosted by UWM’s Center for Gravitation and Cosmology on May 26 and 27.

The goal of the workshop was to plan and scope out work to prepare for the era of advanced gravitational wave detectors, Advanced LIGO and Virgo, expected to come on-line around 2014. Gravitational wave tests of alternative theories of gravity could shed light on some of the most profound challenges facing physics today: from explanations of cosmic acceleration and dark matter to the reconciliation of gravity and quantum theory.

The workshop was structured relatively informally, starting with two lectures by Cliff Will on the gravitational wave physics in alternative theories of gravity. These lectures were followed by focus sessions on gravitational wave bursts, compact binary systems, stochastic background, and continuous waves. Workshop participants enjoyed a number of thought-provoking conferences/altgrav/talks followed by long discussion periods during which gravitational wave sources, data analysis techniques, pipelines, and milestones were proposed and discussed


  • Stochastic Gravitational Wave Backgrounds in extended theories of Gravity [PDF]
    Stefanos Giampanis, Albert Einstein Institute Hannover
  • Externally Triggered GW Searches and Tests of Alternate Gravity Models [PDF]
    Emre Kahya, Friedrich-Schiller-Universität, Jena
  • Testing GR using Externally Triggered Searches:Astrophysical challenges [PDF]
    R. O’Shaughnessy, Center for Gravitational Wave Physics, Penn State University
  • An example: Using short GRBs to limit Birefringence in Chern-Simons modified gravity [PDF]
    R. O’Shaughnessy, Center for Gravitational Wave Physics, Penn State University
  • Searching for Alternative GW Bursts [PDF]
    Peter Shawhan, University of Maryland
  • All-sky burst searches to test alternatives theories of gravity [PDF]
    Xavier Siemens, University of Wisconsin-Milwaukee
  • Testing alternative theories of gravity with gravitational waves: Continuous waves [PDF]
    Alberto Vecchio, University of Birmingham
  • Testing General Relativity Using Gravitational Waves: A Tutorial [PDF]
    Clifford Will, Washington University, St. Louis

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