منابع مشابه
The LISA Optimal Sensitivity
The multiple Doppler readouts available on the Laser Interferometer Space Antenna (LISA) permit simultaneous formation of several interferometric observables. All these observables are independent of laser frequency fluctuations and have different couplings to gravitational waves and to the various LISA instrumental noises. Within the functional space of interferometric combinations LISA will b...
متن کاملTime Delay Interferometry and LISA Optimal Sensitivity
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...
متن کاملLisa Interferometer Sensitivity to Spacecraft Motion
A study has been performed to assess the sensitivity of the LISA interferometer to motion of the spacecraft (S/C) with respect to the proof mass. The results are presented as a functions of arm length and Fourier frequency. In addition different optical arrangements have been analysed and their effects on the cancellation of the spacecraft motion is discussed.
متن کاملOptimal Source Tracking and Beaming of LISA
We revisit the directionally optimal data streams of LISA first introduced in Nayak etal. It was shown that by using appropriate choice of Time delay interferometric (TDI) combinations, a monochromatic fixed source in the barycentric frame can be optimally tracked in the LISA frame. In this work, we study the beaming properties of these optimal streams. We show that all the three streams v+,×,0...
متن کاملSensitivity and parameter-estimation precision for alternate LISA configurations
We describe a simple framework to assess the LISA scientific performance (more specifically, its sensitivity and expected parameter-estimation precision for prescribed gravitational-wave signals) under the assumption of failure of one or two inter-spacecraft laser measurements (links) and of one to four intraspacecraft laser measurements. We apply the framework to the simple case of measuring t...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2002
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.66.122002