Sensitivity curves for searches for gravitational-wave backgrounds
- Creators
- Thrane, Eric
- Romano, Joseph D.
Abstract
We propose a graphical representation of detector sensitivity curves for stochastic gravitational-wave backgrounds that takes into account the increase in sensitivity that comes from integrating over frequency in addition to integrating over time. This method is valid for backgrounds that have a power-law spectrum in the analysis band. We call these graphs "power-law integrated curves." For simplicity, we consider cross-correlation searches for unpolarized and isotropic stochastic backgrounds using two or more detectors. We apply our method to construct power-law integrated sensitivity curves for second-generation ground-based detectors such as Advanced LIGO, space-based detectors such as LISA and the Big Bang Observer, and timing residuals from a pulsar timing array. The code used to produce these plots is available at https://dcc.ligo.org/LIGO-P1300115/public for researchers interested in constructing similar sensitivity curves.
Additional Information
© 2013 American Physical Society. Received 19 October 2013; published 12 December 2013. We thank Vuk Mandic and Nelson Christensen for helpful comments regarding an earlier draft of the paper. J. D. R. would also like to thank Paul Demorest, Justin Ellis, Shane Larson, Alberto Sesana, and Alberto Vecchio for discussions related to PTA sensitivity curves. E. T. is a member of the LIGO Laboratory, supported by funding from the United States National Science Foundation. LIGO was constructed by the California Institute of Technology and Massachusetts Institute of Technology with funding from the National Science Foundation and operates under Cooperative Agreement No. PHY-0757058. J.D.R. acknowledges support from NSF Grants No. PHY-1205585, No. PHY-0855371, and No. CREST HRD-1242090.Attached Files
Published - PhysRevD.88.124032.pdf
Submitted - 1310.5300v2.pdf
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Additional details
- Eprint ID
- 43449
- Resolver ID
- CaltechAUTHORS:20140121-100602671
- PHY-0757058
- NSF
- PHY-1205585
- NSF
- PHY-0855371
- NSF
- CREST HRD-1242090
- NSF
- Created
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2014-01-22Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field