Beyond the Required LISA Free-Fall Performance: New LISA Pathfinder Results down to 20 mu Hz

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Armano, M. et al.: Beyond the Required LISA Free-Fall Performance: New LISA Pathfinder Results down to 20 mu Hz. In: Physical Review Letters 120 (2018), Nr. 6, 061101. DOI:

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Sum total of downloads: 84

In the months since the publication of the first results, the noise performance of LISA Pathfinder has improved because of reduced Brownian noise due to the continued decrease in pressure around the test masses, from a better correction of noninertial effects, and from a better calibration of the electrostatic force actuation. In addition, the availability of numerous long noise measurement runs, during which no perturbation is purposely applied to the test masses, has allowed the measurement of noise with good statistics down to 20 mu Hz. The Letter presents the measured differential acceleration noise figure, which is at (1.74 +/- 0.01) fm s(-2)/root Hz above 2 mHz and (6 +/- 1) x 10 fm s(-2)/root Hz at 20 mu Hz, and discusses the physical sources for the measured noise. This performance provides an experimental benchmark demonstrating the ability to realize the low-frequency science potential of the LISA mission, recently selected by the European Space Agency.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:An-Institute

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pos. country downloads
total perc.
1 image of flag of Germany Germany 39 46.43%
2 image of flag of United States United States 19 22.62%
3 image of flag of China China 12 14.29%
4 image of flag of France France 2 2.38%
5 image of flag of Canada Canada 2 2.38%
6 image of flag of Australia Australia 2 2.38%
7 image of flag of Vietnam Vietnam 1 1.19%
8 image of flag of No geo information available No geo information available 1 1.19%
9 image of flag of Taiwan Taiwan 1 1.19%
10 image of flag of Denmark Denmark 1 1.19%
    other countries 4 4.76%

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