MG13 - Talk detail |
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Participant |
Weber, William | |||||||
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Institution |
Università di Trento and INFN - Via Sommarive 14 - Povo - Trento - Italy | |||||||
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Session |
SG3 |
Accepted |
Yes |
Order |
3 |
Time |
15:20 - 16:00 | |
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Talk |
Oral abstract |
Title |
LISA Pathfinder: probing the limits of geodesic motion for gravitational experimentation | |||||
| Co-authors | William Weber for the LISA Pathfinder collaboration | |||||||
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Abstract |
The resolution of gravitational physics experiments, including gravitational wave detection, often hinges on our capability to put geodesic reference test masses into perfectly free-falling orbits. The LISA / NGO gravitational wave observatory will require test masses that are in free-fall to within a residual acceleration noise of 3 fm/s^2/sqrt(Hz) at frequencies from 0.1 to 3 mHz. This talk presents work towards realizing such sub-femto-g performance and on constructing a physical model of the limits to achieving perfect geodesic references with the LISA Pathfinder mission. Discussion will focus on the preparation for the flight experiments and our estimates for limits of free-fall performance based on laboratory measurements. |
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