Abstract
Ultra-compact binary systems containing white dwarfs dominate the gravitational wave foreground in the mHz frequency range. Many of these binaries are weak gravitational wave sources. However, there are nine systems where the gravitational wave strain is strong enough to make them verification sources for gravitational wave missions, e.g. the evolved Laser Interferometer Space Antenna (eLISA). Here we present a summary of the physical characteristics of these nine systems, including the observed rate of orbital decay. In addition, we present the recent discoveries from the ELM Survey, which identified two verification sources in the last 3 years. We also discuss the future prospects for increasing the sample of verification binaries.
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Acknowledgements
We gratefully acknowledge the support of the NSF under grant AST-1312678. JJH acknowledges funding from the European Research Council under the European Union’s Seventh Framework Programme (FP/2007–2013)/ERC Grant Agreement no. 320964 (WDTracer).
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Kilic, M., Brown, W.R., Hermes, J.J., Gianninas, A. (2015). Gravitational Wave Verification Sources. In: Sopuerta, C. (eds) Gravitational Wave Astrophysics. Astrophysics and Space Science Proceedings, vol 40. Springer, Cham. https://doi.org/10.1007/978-3-319-10488-1_14
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DOI: https://doi.org/10.1007/978-3-319-10488-1_14
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