Time-delay interferometry and the relativistic treatment of LISA optical links
نویسندگان
چکیده
منابع مشابه
Time-delay interferometry for LISA
LISA ~Laser Interferometer Space Antenna! is a mission to detect and study low-frequency cosmic gravitational radiation through its influence on the phases or frequencies of laser beams exchanged between three remote spacecraft. We previously showed how, with lasers of identical frequencies on stationary spacecraft, the measurement of twelve time series of Doppler shifts could be combined to ca...
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The sensitivity of LISA depends on the suppression of several noise sources; dominant one is laser frequency noise. It has been shown that the six Doppler data streams obtained from three space-crafts can be appropriately time delayed and optimally combined to cancel this laser frequency noise. We show that the optimal data combinations when operated in a network mode improves the sensitivity o...
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Synthetic LISA, developed at the Jet Propulsion Laboratory, is a C++/Python package to simulate the LISA science process at the level of scientific and technical requirements. It generates synthetic time series of the LISA fundamental noises, as filtered through all the Time-Delay-Interferometric (TDI) observables; it provides a streamlined module to compute the TDI responses to gravitational w...
متن کاملRelativistic analysis of the LISA long range optical links
The joint ESA/NASA LISA mission consists in three spacecraft on heliocentric orbits, flying in a triangular formation of 5 Mkm each side, linked by infrared optical beams. The aim of the mission is to detect gravitational waves in a low frequency band. For properly processing the scientific data, the propagation delays between spacecraft must be accurately known. We thus analyse the propagation...
متن کاملTime Delay Interferometry for LISA with one arm dysfunctional
In order to attain the requisite sensitivity for LISA a joint space mission of the ESA and NASAthe laser frequency noise must be suppressed below the secondary noises such as the optical path noise, acceleration noise etc. By combining six appropriately time-delayed data streams containing fractional Doppler shifts a technique called time delay interferometry (TDI) the laser frequency noise may...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2009
ISSN: 1742-6596
DOI: 10.1088/1742-6596/154/1/012047