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Main Authors: Ranjan, Shobhit, Jani, Karan, Nitz, Alexander H., Holley-Bockelmann, Kelly, Cutler, Curt
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2406.11926
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author Ranjan, Shobhit
Jani, Karan
Nitz, Alexander H.
Holley-Bockelmann, Kelly
Cutler, Curt
author_facet Ranjan, Shobhit
Jani, Karan
Nitz, Alexander H.
Holley-Bockelmann, Kelly
Cutler, Curt
contents The non-linear dynamics of General Relativity leave their imprint on remnants of black hole mergers in the form of a recoil ``kick''. The kick has profound astrophysical implications across the black hole mass range from stellar to super-massive. However, a robust measurement of the kick for generic binaries from gravitational-wave observations has proved so far to be extremely challenging. In this \emph{letter}, we demonstrate the prospects of measuring black hole kicks through a multiband gravitational-wave network consisting of space mission LISA, the current earth-based detector network and a third-generation detector. For two distinct cases of remnant black hole kick (68 km/s, 1006 km/s) emerging from near identical pre-merger configuration of GW190521 -- the first confirmed intermediate-mass black hole -- we find that the multiband network will recover with 90\% credible level the projection of the kick vector relative to the orbital plane within tens of km/s accuracy. Such precise measurement of the kick offer a new set of multi-messenger follow-ups and unprecedented tests of astrophysical formation channels.
format Preprint
id arxiv_https___arxiv_org_abs_2406_11926
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Tale of Two Black Holes: Multiband Gravitational-Wave Measurement of Recoil Kicks
Ranjan, Shobhit
Jani, Karan
Nitz, Alexander H.
Holley-Bockelmann, Kelly
Cutler, Curt
General Relativity and Quantum Cosmology
High Energy Astrophysical Phenomena
The non-linear dynamics of General Relativity leave their imprint on remnants of black hole mergers in the form of a recoil ``kick''. The kick has profound astrophysical implications across the black hole mass range from stellar to super-massive. However, a robust measurement of the kick for generic binaries from gravitational-wave observations has proved so far to be extremely challenging. In this \emph{letter}, we demonstrate the prospects of measuring black hole kicks through a multiband gravitational-wave network consisting of space mission LISA, the current earth-based detector network and a third-generation detector. For two distinct cases of remnant black hole kick (68 km/s, 1006 km/s) emerging from near identical pre-merger configuration of GW190521 -- the first confirmed intermediate-mass black hole -- we find that the multiband network will recover with 90\% credible level the projection of the kick vector relative to the orbital plane within tens of km/s accuracy. Such precise measurement of the kick offer a new set of multi-messenger follow-ups and unprecedented tests of astrophysical formation channels.
title A Tale of Two Black Holes: Multiband Gravitational-Wave Measurement of Recoil Kicks
topic General Relativity and Quantum Cosmology
High Energy Astrophysical Phenomena
url https://arxiv.org/abs/2406.11926