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    Unveiling the gravitational universe at μ-Hz frequencies

    Sesana, Alberto and Korsakova, Natalia and Sedda, Manuel Arca and Baibhav, Vishal and Barausse, Enrico and Barke, Simon and Berti, Emanuele and Bonetti, Matteo and Capelo, Pedro R. and Caprini, Chiara and Garcia-Bellido, Juan and Haiman, Zoltan and Jani, Karan and Jennrich, Oliver and Johansson, Peter H. and Khan, Fazeel Mahmood and Korol, Valeriya and Lamberts, Astrid and Lupi, Alessandro and Mangiagli, Alberto and Mayer, Lucio and Nardini, Germano and Pacucci, Fabio and Petiteau, Antoine and Raccanelli, Alvise and Rajendran, Surjeet and Regan, John and Shao, Lijing and Spallicci, Alessandro and Tamanini, Nicola and Volonteri, Marta and Warburton, Niels and Wong, Kaze and Zumalacarregui, Miguel (2021) Unveiling the gravitational universe at μ-Hz frequencies. Experimental Astronomy, 51 (3). pp. 1333-1383. ISSN 0922-6435

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    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.

    Item Type: Article
    Keywords: Space gravitational wave detector; Micro-Hz band; Massive black hole binaries; Multimessenger and multiband Astronomy; General relativity and beyond; Cosmology and cosmography; Milky Way science;
    Academic Unit: Faculty of Science and Engineering > Theoretical Physics
    Item ID: 18430
    Identification Number:
    Depositing User: John Regan
    Date Deposited: 25 Apr 2024 14:10
    Journal or Publication Title: Experimental Astronomy
    Publisher: Kluwer Academic Publishers
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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