Effects of interplanetary dust on the LISA drag-free constellation
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The analysis of non-radiative sources of static or time-dependent gravitational fields in the Solar System is crucial to accurately estimate the free-fall orbits of the LISA space mission. In particular, we take into account the gravitational effects of Interplanetary Dust (ID) on the spacecraft trajectories. The perturbing gravitational field has been calculated for some ID density distributions that fit the observed zodiacal light. Then we integrated the Gauss planetary equations to get the deviations from the LISA Keplerian orbits around the Sun. This analysis can be eventually extended to Local Dark Matter (LDM), as gravitational fields are expected to be similar for ID and LDM distributions. Under some strong assumptions on the displacement noise at very low frequency, the Doppler data collected during the whole LISA mission could provide upper limits on ID and LDM densities.
KeywordsLISA Interplanetary dust Local dark matter Free-fall orbits
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- Bender, P. et al.: Pre-Phase A Report, 2nd edn. (1998)Google Scholar
- Bender, P. et al.: LISA: a cornerstone mission for the observation of gravitational waves System and Technology Study. Report ESA-SCI 11 (2000)Google Scholar
- Bocaletti D., Pucacco G.: Theory of Orbits. Springer, Berlin (2001)Google Scholar
- Helstrom C.W.: Statistical Theory of Signal Detection. Pergamon Press, New York (1960)Google Scholar
- Levasseur-Regourd A.C.: Optical and Thermal Properties of Zodiacal Dust, vol. 104, pp. 301–308. Physics, Chemistry and Dynamics of Interplanetary Dust. ASP Conference series, San Francisco (1996)Google Scholar