Space-borne gravitational wave observatories
نویسندگان
چکیده
منابع مشابه
Unequal arm space-borne gravitational wave detectors
Abstract Unlike ground-based interferometric gravitational wave detectors, large space-based systems will not be rigid structures. When the end-stations of the laser interferometer are freely flying spacecraft, the armlengths will change due to variations in the spacecraft positions along their orbital trajectories, so the precise equality of the arms that is required in a laboratory interferom...
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The signal-to-noise ratio (SNR) is used in gravitational-wave observations as the basic figure of merit for detection confidence and, together with the Fisher matrix, for the amount of physical information that can be extracted from a detected signal. SNRs are usually computed from a sensitivity curve, which describes the gravitational-wave amplitude needed by a monochromatic source of given fr...
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We report the first results of the LISA Pathfinder in-flight experiment. The results demonstrate that two free-falling reference test masses, such as those needed for a space-based gravitational wave observatory like LISA, can be put in free fall with a relative acceleration noise with a square root of the power spectral density of 5.2±0.1 fm s^{-2}/sqrt[Hz], or (0.54±0.01)×10^{-15} g/sqrt[Hz...
متن کاملOptimal design of calibration signals in space borne gravitational wave detectors
Miquel Nofrarias, ∗ Nikolaos Karnesis, Ferran Gibert, Michele Armano, Heather Audley, Karsten Danzmann, Ingo Diepholz, Rita Dolesi, Luigi Ferraioli, Valerio Ferroni, Martin Hewitson, Mauro Hueller, Henri Inchauspe, Oliver Jennrich, Natalia Korsakova, Paul W. McNamara, Eric Plagnol, James I. Thorpe, Daniele Vetrugno, Stefano Vitale, Peter Wass, and William J. Weber Institut de Ciències de l’Espa...
متن کاملThe first space-based gravitational-wave detectors
Gravitational waves provide a laboratory for general relativity and a window to energetic astrophysical phenomena invisible with electromagnetic radiation. Several terrestrial detectors are currently under construction, and a space-based interferometer is envisioned for launch early next century to detect test-mass motions induced by waves of relatively short wavelength. Very-long-wavelength gr...
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ژورنال
عنوان ژورنال: General Relativity and Gravitation
سال: 2014
ISSN: 0001-7701,1572-9532
DOI: 10.1007/s10714-014-1730-2