Details
| Original language | English |
|---|---|
| Article number | 095004 |
| Journal | Classical and quantum gravity |
| Volume | 32 |
| Issue number | 9 |
| Publication status | Published - 7 May 2015 |
Abstract
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 http://spacegravity.org/designer. 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.
Keywords
- eLISA, Gravitational waves, Laser interferometer space antenna, Laser interferometry, LISA, OGO, Shot noise
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physics and Astronomy (miscellaneous)
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In: Classical and quantum gravity, Vol. 32, No. 9, 095004, 07.05.2015.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Towards a gravitational wave observatory designer
T2 - sensitivity limits of spaceborne detectors
AU - Barke, S.
AU - Wang, Y.
AU - Esteban Delgado, J. J.
AU - Tröbs, M.
AU - Heinzel, G.
AU - Danzmann, K.
PY - 2015/5/7
Y1 - 2015/5/7
N2 - 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 http://spacegravity.org/designer. 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.
AB - 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 http://spacegravity.org/designer. 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.
KW - eLISA
KW - Gravitational waves
KW - Laser interferometer space antenna
KW - Laser interferometry
KW - LISA
KW - OGO
KW - Shot noise
UR - http://www.scopus.com/inward/record.url?scp=84928494305&partnerID=8YFLogxK
U2 - 10.1088/0264-9381/32/9/095004
DO - 10.1088/0264-9381/32/9/095004
M3 - Article
AN - SCOPUS:84928494305
VL - 32
JO - Classical and quantum gravity
JF - Classical and quantum gravity
SN - 0264-9381
IS - 9
M1 - 095004
ER -