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  LISA verification binaries with updated distances from Gaia Data Release 2

Kupfer, T., Korol, V., Shah, S., Nelemans, G., Marsh, T. R., Ramsay, G., et al. (2018). LISA verification binaries with updated distances from Gaia Data Release 2. Monthly Notices of the Royal Astronomical Society, 480 (1), 302-309. doi:10.1093/mnras/sty1545.

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1805.00482.pdf (Preprint), 768KB
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 Urheber:
Kupfer, T., Autor
Korol, V., Autor
Shah, S.1, Autor
Nelemans, G., Autor
Marsh, T. R., Autor
Ramsay, G., Autor
Groot, P. J., Autor
Steeghs, D. T. H, Autor
Rossi, E. M., Autor
Affiliations:
1AEI-Hannover, MPI for Gravitational Physics, Max Planck Society, Hannover, DE, ou_24009              

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Schlagwörter: Astrophysics, Solar and Stellar Astrophysics, astro-ph.SR
 Zusammenfassung: Ultracompact binaries with orbital periods less than a few hours will dominate the gravitational wave signal in the mHz regime. Until recently, 10 systems were expected have a predicted gravitational wave signal strong enough to be detectable by the Laser Interferometer Space Antenna (LISA), the so-called `verification binaries'. System parameters, including distances, are needed to provide an accurate prediction of the expected gravitational wave strength to be measured by LISA. Using parallaxes from {\sl Gaia} Data Release 2 we calculate signal-to-noise ratios (SNR) for $\approx$50 verification binary candidates. We find that 11 binaries reach a SNR$\geq$20, two further binaries reaching a SNR$\geq$5 and three more systems are expected to have a SNR$\approx$5 after four years integration with LISA. For these 16 systems we present predictions of the gravitational wave amplitude ($\mathcal{A}$) and parameter uncertainties from Fisher information matrix on the amplitude ($\mathcal{A}$) and inclination ($\iota$).

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 Datum: 2018-05-012018
 Publikationsstatus: Erschienen
 Seiten: submitted to MNRAS, 9 pages, 4 figures
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Titel: Monthly Notices of the Royal Astronomical Society
  Andere : Mon. Not. R. Astron. Soc.
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Oxford : Oxford University Press
Seiten: - Band / Heft: 480 (1) Artikelnummer: - Start- / Endseite: 302 - 309 Identifikator: ISSN: 1365-8711
CoNE: https://pure.mpg.de/cone/journals/resource/1000000000024150