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Gravitational Wave Detection on the Moon and the Moons of MarsThe Moon and the moons of Mars should be extremely quiet seismically and could therefore become sensitive gravitational wave detectors, if instrumented properly. Highly sensitive displacement sensors could be deployed on these planetary bodies to monitor the motion induced by gravitational waves. A superconducting displacement sensor with a 10-kg test mass cooled to 2 K will have an intrinsic instrument noise of 10(exp -16) m Hz(exp -1/2). These sensors could be tuned to the lowest two quadrupole modes of the body or operated as a wideband detector below its fundamental mode. An interesting frequency range is 0.1 to approx. 1 Hz, which will be missed by both the ground detectors on the Earth and LISA and would be the best window for searching for stochastic background gravitational waves. Phobos and Deimos have their lowest quadrupole modes at 0.2 to approx. 0.3 Hz and could offer a sensitivity h(sub min) = 10(exp -22) Hz(exp -1/2) within their resonance peaks, which is within two orders of magnitude from the goal of the Big Bang Observer (BBO). The lunar and Martian moon detectors would detect many interesting foreground sources in a new frequency window and could serve as a valuable precursor for BBO.
Document ID
20060014034
Document Type
Conference Paper
Authors
Paik, Ho Jung (Maryland Univ. College Park, MD, United States)
YethadkaVenkateswara, Krishna (Maryland Univ. College Park, MD, United States)
Date Acquired
September 7, 2013
Publication Date
January 1, 2004
Publication Information
Publication: Proceedings of the 2004 NASA/JPL Workshop on Physics for Planetary Exploration
Subject Category
Physics (General)
Funding Number(s)
CONTRACT_GRANT: NRA-01-OBOR-08-E
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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IDRelationTitle20060014017Analytic PrimaryProceedings of the 2004 NASA/JPL Workshop on Physics for Planetary Exploration