Hartwig, Tilman and Agarwal, Bhaskar and Regan, John (2018) Gravitational Wave Signals from the First Massive Black Hole Seeds. Monthly Notices of the Royal Astronomical Society, 479. ISSN 1365-2966

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Abstract

Recent numerical simulations reveal that the isothermal collapse of pristine gas in atomic cooling haloes may result in stellar binaries of supermassive stars with M∗≳104 M⊙. For the first time, we compute the in-situ merger rate for such massive black hole remnants by combining their abundance and multiplicity estimates. For black holes with initial masses in the range 104−6 M⊙ merging at redshifts z≳15 our optimistic model predicts that LISA should be able to detect 0.6 mergers per year. This rate of detection can be attributed, without confusion, to the in-situ mergers of seeds from the collapse of very massive stars. Equally, in the case where LISA observes no mergers from heavy seeds at z≳15 we can constrain the combined number density, multiplicity, and coalesence times of these high-redshift systems. This letter proposes gravitational wave signatures as a means to constrain theoretical models and processes that govern the abundance of massive black hole seeds in the early Univer

Item Type:	Article
Keywords:	quasars; supermassive black holes; cosmology; dark ages; reionization; first stars; galaxies; high-redshift; gravitational waves;
Academic Unit:	Faculty of Science and Engineering > Theoretical Physics Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	13181
Identification Number:	https://doi.org/10.1093/mnrasl/sly091
Depositing User:	John Regan
Date Deposited:	07 Aug 2020 20:17
Journal or Publication Title:	Monthly Notices of the Royal Astronomical Society
Publisher:	The Royal Astronomical Society
Refereed:	Yes
URI:	Publisher
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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