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Journal Articles Experimental Astronomy Year : 2021

Unveiling the gravitational universe at μ-Hz frequencies

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Alberto Sesana
  • Function : Author
  • PersonId : 1109492
Manuel Arca Sedda
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Vishal Baibhav
  • Function : Author
Enrico Barausse
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Simon Barke
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Emanuele Berti
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Matteo Bonetti
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Pedro R Capelo
  • Function : Author
Juan Garcia-Bellido
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Zoltan Haiman
  • Function : Author
Karan Jani
  • Function : Author
Oliver Jennrich
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Peter H Johansson
  • Function : Author
Fazeel Mahmood Khan
  • Function : Author
Valeriya Korol
  • Function : Author
Astrid Lamberts
Alessandro Lupi
  • Function : Author
Alberto Mangiagli
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Lucio Mayer
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Germano Nardini
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Fabio Pacucci
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Alvise Raccanelli
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Surjeet Rajendran
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John Regan
  • Function : Author
Lijing Shao
  • Function : Author
Marta Volonteri
Niels Warburton
  • Function : Author
Kaze Wong
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Miguel Zumalacarregui
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Abstract

We propose a space-based interferometer surveying the gravitational wave (GW) sky in the milli-Hz to μ-Hz frequency range. By the 2040s, the μ-Hz frequency band, bracketed in between the Laser Interferometer Space Antenna (LISA) and pulsar timing arrays, will constitute the largest gap in the coverage of the astrophysically relevant GW spectrum. Yet many outstanding questions related to astrophysics and cosmology are best answered by GW observations in this band. We show that a μ-Hz GW detector will be a truly overarching observatory for the scientific community at large, greatly extending the potential of LISA. Conceived to detect massive black hole binaries from their early inspiral with high signal-to-noise ratio, and low-frequency stellar binaries in the Galaxy, this instrument will be a cornerstone for multimessenger astronomy from the solar neighbourhood to the high-redshift Universe.
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Dates and versions

insu-03336222 , version 1 (07-09-2021)

Licence

Attribution - CC BY 4.0

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Cite

Alberto Sesana, Natalia Korsakova, Manuel Arca Sedda, Vishal Baibhav, Enrico Barausse, et al.. Unveiling the gravitational universe at μ-Hz frequencies. Experimental Astronomy, 2021, ⟨10.1007/s10686-021-09709-9⟩. ⟨insu-03336222⟩
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