Towards a gravitational wave observatory designer: sensitivity limits of spaceborne detectors

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Barke, Simon; Wang, Y.; Delgado, J. J. Esteban; Troebs, Michael; Heinzel, Gerhard; Danzmann, Karsten: Towards a gravitational wave observatory designer: sensitivity limits of spaceborne detectors. In: Classical And Quantum Gravity 32 (2015), Nr. 9, 95004. DOI:

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Sum total of downloads: 239

The most promising concept for low frequency (millihertz to hertz) gravitational wave observatories are laser interferometric detectors in space. It is usually assumed that the noise floor for such a detector is dominated by optical shot noise in the signal readout. For this to be true, a careful balance of mission parameters is crucial to keep all other parasitic disturbances below shot noise. We developed a web application that uses over 30 input parameters and considers many important technical noise sources and noise suppression techniques to derive a realistic position noise budget. It optimizes free parameters automatically and generates a detailed report on all individual noise contributions. Thus one can easily explore the entire parameter space and design a realistic gravitational wave observatory. In this document we describe the different parameters, present all underlying calculations, and compare the final observatory's sensitivity with astrophysical sources of gravitational waves. We use as an example parameters currently assumed to be likely applied to a space mission proposed to be launched in 2034 by the European Space Agency. The web application itself is publicly available on the Internet at Future versions of the web application will incorporate the frequency dependence of different noise sources and include a more detailed model of the observatory's residual acceleration noise.
License of this version: CC BY 3.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2015-05-07
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 189 79.08%
2 image of flag of United States United States 10 4.18%
3 image of flag of China China 9 3.77%
4 image of flag of France France 5 2.09%
5 image of flag of Russian Federation Russian Federation 4 1.67%
6 image of flag of Netherlands Netherlands 3 1.26%
7 image of flag of Sweden Sweden 2 0.84%
8 image of flag of Malaysia Malaysia 2 0.84%
9 image of flag of Israel Israel 1 0.42%
10 image of flag of Algeria Algeria 1 0.42%
    other countries 13 5.44%

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