PPT-Absolute Calibration of A Gravitational Wave Detector Network

Jeffrey Kissel LIGO Hanford Controls Engineer LIGO Calibration Group CoChair G1800393v2 1 Inspiration G1800393v2 2 PRL 11623 2016 231102 2G 3G Space and PTAs will have events with SNRs of O100. Benabid M Notcutt L Ju DG Blair Physics Department University of Western Australia Nedlands WA 6907 Australia Abstract We report measurements of the birefringence of a high purity polished sapphire sample to determine the fringe contrast attainable Background. Gerald L Mader. 2 . , Andria L Bilich. 1. , Charles Geoghegan. 3. 1. National Geodetic Survey, . NOAA/NOS, Boulder CO; corresponding author: . andria.bilich@noaa.gov. 1. National Geodetic Survey, NOAA/NOS, Silver Spring, MD. To demonstrate the physical reality of gravitational waves, consider the example system of the previous section. We will concentrate our attention on three of the test masses, one chosen arbitrarily from the plane, along with its nearest neighbors in the +x and +y directions. Imagine that we have equipped the mass at the vertex of this “L” with a lamp that can be made to emit very brief pulses of light. Imagine also that the two masses at the ends of the “L” are fitted with mirrors aimed so that they will return the flashes of light back toward the vertex mass. The Child of General Relativity. A Necessary Change. Concepts after Einstein :-. Time is not absolute. There is no ether frame. Notion of . spacetime. Concepts before Einstein :-. There is a preferred reference frame ether. Clive Tomlinson. . Einstein’s General Theory Of Relativity predicts the existence of gravitational waves (1916). Yet to be directly detected.. Gravitational Waves. . Cause a time varying curvature of space-time, propagating at the speed of light. . Overview of Why and How. Dan Burbank and Tony Young. AST5022. Introduction. Background. Physics. Sources. Detectors and Detector Implications. Questions. Gravitational Waves . Speed-of-light wave propagation solution of Einstein’s Field Equations. Detecting Einstein’s Elusive Waves. Opening a New Window to the Universe. An Indo-US joint mega-project concept proposal. . IndIGO. Consortium. (. Ind. ian . I. nitiative in . G. ravitational-wave . Gravitational Waves: On the Brink of a New Astronomy. Tiffany Summerscales, Dept. of Physics. What are gravitational waves?. Einstein’s theory of General Relativity predicts that mass curves the fabric of . Gabriela . Gonz. ález. Louisiana State University. LSC spokesperson. For the LIGO Scientific Collaboration and . the Virgo Collaboration. LIGO Livingston Observatory,. Louisiana, USA. LIGO Hanford Observatory. UsingdatatakenbetweenNovember2005and2007theLaserInterferometerGravitational-waveObservatoryLIGOScientificCollaborationandtheVirgoCollaborationhaveplacedupperlimitsontheamplitudeofthestochasticgravitat Tim Kovachy. Department of Physics and Astronomy and Center for Fundamental Physics, Northwestern University. NPS Colloquium. February 1, 2019 . Conceptual overview of atom interferometry. Motivation for gravitational wave detection in the “mid-band” frequency range of ~ 0.1 Hz to 10 Hz. gravitational. . waves. by. Laser-plasma . interaction. . Hedvika . Kadlecová. . a. , . S. Weber . a. , G. Korn. a . a. . Institute of Physics, v.v.i. ASCR, Na Slovance 1999, Prague, Czech Republic;. rd. generation gravitational wave observatory. Michele Punturo. INFN Perugia and EGO. On behalf of the ET Design Study Team. http://www.et-gw.eu/. 1. Einstein Telescope. Talk Outline. Introduction to the Gravitational Wave (GW) search. Jim Stewart. August . 24. . 2017. Work over the last few months. I have tried to contact people working on the ProtoDUNE-SP calibration related systems and other people interested in the Far Detector calibration to develop a list of calibration systems and then build a coherent plan that is likely to accommodate the needed calibrations but minimized the number of penetrations into the cryostat..