Angular and frequency response of LISA

作者: Roland Schilling

DOI: 10.1088/0264-9381/14/6/020

关键词: Gravitational waveOpticsAzimuthDetectorFrequency responseShot noiseWavelengthPolarization (waves)Transfer functionPhysicsPhysics and Astronomy (miscellaneous)

摘要: The sensitivity of LISA at frequencies above about 10 mHz is determined by the shot noise light together with decreasing antenna transfer function, finally being limited mechanical resonances 1 Hz. In this paper we will investigate function laser-interferometric gravitational-wave antennas in upper frequency range, where physical arm length becomes comparable to or even greater than wavelength gravitational waves. This analysis reveals results which are also interesting for ground-based detectors. Furthermore, calculate dependence on orbit azimuth, source declination and polarization, form average over these angles order arrive a mean curve. It turns out that resulting response better estimated previously.

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