Bulletin of the American Physical Society
APS April Meeting 2012
Volume 57, Number 3
Saturday–Tuesday, March 31–April 3 2012; Atlanta, Georgia
Session B8: Current and Future Gravitational Wave Experiments |
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Sponsoring Units: GGR Chair: Duncan Brown, Syracuse University Room: Embassy B |
Saturday, March 31, 2012 10:45AM - 11:21AM |
B8.00001: Prospects and challenges for gravitational-wave astronomy Invited Speaker: Stefan Ballmer Advanced LIGO, a 2nd generation gravitational wave detector currently being installed is expected to provide the first direct observation of the gravitational waves emitted by binary mergers, and will start to explore previously unobserved corners of the universe. Just as Galileo's optical telescope 400 years ago, this new scientific instrument will answer some questions and raise many others. This triggers a need for a successor to Advanced LIGO. I will explore the science case for such an instrument situated at a new observatory, focusing on the prospects of extending the observation band to lower frequencies. I will look at the technology development needed to achieve the exquisite displacement sensitivity required to listen even deeper into the cosmos. [Preview Abstract] |
Saturday, March 31, 2012 11:21AM - 11:57AM |
B8.00002: Wideband, Third-generation, Gravitational-wave Antenna Invited Speaker: Rana Adhikari The upcoming set of gravitational wave detectors (Adv LIGO, Adv Virgo, LCGT) will enable reliable detection of gravitational waves from compact binaries; likely dozens per year. To make high precision tests of relativity, nuclear physics, and cosmology will require an upgrade. I will argue that a relatively simple set of upgrades to the existing detectors will enable bypassing the current thermodynamic and quantum measurement limits. By hurdling these limits, we will be able to place the strongest constraints to date on alternative theories of strong field gravity and models for the neutron star equation of state and some gamma ray burst models. [Preview Abstract] |
Saturday, March 31, 2012 11:57AM - 12:09PM |
B8.00003: Advanced LIGO Status Michael Landry Advanced LIGO interferometers will have an order of magnitude better strain sensitivity than those of Initial LIGO, push the corner frequency down to approximately 10Hz, and are thus expected to yield multiple detections of astrophysical gravitational wave sources per year. The installation of Advanced LIGO was launched in October of 2011 at both Hanford, WA and Livingston, LA observatory sites. Since that time we have de-installed Initial LIGO detectors, modified vacuum envelopes, and embarked on the process of both in-vacuum and external installation of Advanced LIGO detector components. In this talk we summarize the status and plans for the installation and commissioning of these detectors. [Preview Abstract] |
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