Black holes and fundamental fields: Hair, kicks, and a gravitational Magnus effect

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Black holes and fundamental fields : Hair, kicks, and a gravitational Magnus effect. / Okawa, Hirotada; Cardoso, Vitor.

I: Physical Review D, Bind 90, Nr. 10, 104040, 25.11.2014.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Okawa, H & Cardoso, V 2014, 'Black holes and fundamental fields: Hair, kicks, and a gravitational Magnus effect', Physical Review D, bind 90, nr. 10, 104040. https://doi.org/10.1103/PhysRevD.90.104040

APA

Okawa, H., & Cardoso, V. (2014). Black holes and fundamental fields: Hair, kicks, and a gravitational Magnus effect. Physical Review D, 90(10), [104040]. https://doi.org/10.1103/PhysRevD.90.104040

Vancouver

Okawa H, Cardoso V. Black holes and fundamental fields: Hair, kicks, and a gravitational Magnus effect. Physical Review D. 2014 nov. 25;90(10). 104040. https://doi.org/10.1103/PhysRevD.90.104040

Author

Okawa, Hirotada ; Cardoso, Vitor. / Black holes and fundamental fields : Hair, kicks, and a gravitational Magnus effect. I: Physical Review D. 2014 ; Bind 90, Nr. 10.

Bibtex

@article{d421a51da1d84f28abe571c7916b9e65,
title = "Black holes and fundamental fields: Hair, kicks, and a gravitational Magnus effect",
abstract = "Scalar fields pervade theoretical physics and are a fundamental ingredient to solve the dark matter problem, to realize the Peccei-Quinn mechanism in QCD or the string-axiverse scenario. They are also a useful proxy for more complex matter interactions, such as accretion disks or matter in extreme conditions. Here, we study the collision between scalar {"}clouds{"} and rotating black holes. For the first time we are able to compare analytic estimates and strong field, nonlinear numerical calculations for this problem. As the black hole pierces through the cloud it accretes according to the Bondi-Hoyle prediction, but is deflected through a purely kinematic gravitational {"}anti-Magnus{"} effect, which we predict to be present also during the interaction of black holes with accretion disks. After the interaction is over, we find large recoil velocities in the transverse direction. The end-state of the process belongs to the vacuum Kerr family if the scalar is massless, but can be a hairy black hole when the scalar is massive.",
author = "Hirotada Okawa and Vitor Cardoso",
year = "2014",
month = nov,
day = "25",
doi = "10.1103/PhysRevD.90.104040",
language = "English",
volume = "90",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Black holes and fundamental fields

T2 - Hair, kicks, and a gravitational Magnus effect

AU - Okawa, Hirotada

AU - Cardoso, Vitor

PY - 2014/11/25

Y1 - 2014/11/25

N2 - Scalar fields pervade theoretical physics and are a fundamental ingredient to solve the dark matter problem, to realize the Peccei-Quinn mechanism in QCD or the string-axiverse scenario. They are also a useful proxy for more complex matter interactions, such as accretion disks or matter in extreme conditions. Here, we study the collision between scalar "clouds" and rotating black holes. For the first time we are able to compare analytic estimates and strong field, nonlinear numerical calculations for this problem. As the black hole pierces through the cloud it accretes according to the Bondi-Hoyle prediction, but is deflected through a purely kinematic gravitational "anti-Magnus" effect, which we predict to be present also during the interaction of black holes with accretion disks. After the interaction is over, we find large recoil velocities in the transverse direction. The end-state of the process belongs to the vacuum Kerr family if the scalar is massless, but can be a hairy black hole when the scalar is massive.

AB - Scalar fields pervade theoretical physics and are a fundamental ingredient to solve the dark matter problem, to realize the Peccei-Quinn mechanism in QCD or the string-axiverse scenario. They are also a useful proxy for more complex matter interactions, such as accretion disks or matter in extreme conditions. Here, we study the collision between scalar "clouds" and rotating black holes. For the first time we are able to compare analytic estimates and strong field, nonlinear numerical calculations for this problem. As the black hole pierces through the cloud it accretes according to the Bondi-Hoyle prediction, but is deflected through a purely kinematic gravitational "anti-Magnus" effect, which we predict to be present also during the interaction of black holes with accretion disks. After the interaction is over, we find large recoil velocities in the transverse direction. The end-state of the process belongs to the vacuum Kerr family if the scalar is massless, but can be a hairy black hole when the scalar is massive.

U2 - 10.1103/PhysRevD.90.104040

DO - 10.1103/PhysRevD.90.104040

M3 - Journal article

VL - 90

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 10

M1 - 104040

ER -

ID: 300077727