Accretion of Dark Matter by Stars

Research output: Contribution to journal › Letter › Research › peer-review

Standard

Accretion of Dark Matter by Stars. / Brito, Richard; Cardoso, Vitor; Okawa, Hirotada.

In: Physical Review Letters, Vol. 115, No. 11, 111301, 09.09.2015.

Research output: Contribution to journal › Letter › Research › peer-review

Harvard

Brito, R, Cardoso, V & Okawa, H 2015, 'Accretion of Dark Matter by Stars', Physical Review Letters, vol. 115, no. 11, 111301. https://doi.org/10.1103/PhysRevLett.115.111301

APA

Brito, R., Cardoso, V., & Okawa, H. (2015). Accretion of Dark Matter by Stars. Physical Review Letters, 115(11), [111301]. https://doi.org/10.1103/PhysRevLett.115.111301

Vancouver

Brito R, Cardoso V, Okawa H. Accretion of Dark Matter by Stars. Physical Review Letters. 2015 Sep 9;115(11). 111301. https://doi.org/10.1103/PhysRevLett.115.111301

Author

Brito, Richard ; Cardoso, Vitor ; Okawa, Hirotada. / Accretion of Dark Matter by Stars. In: Physical Review Letters. 2015 ; Vol. 115, No. 11.

Bibtex

@article{42031ef2e284408c9c74f25cfd312ac2,
title = "Accretion of Dark Matter by Stars",
abstract = "Searches for dark matter imprints are one of the most active areas of current research. We focus here on light fields with mass m(B), such as axions and axionlike candidates. Using perturbative techniques and full-blown nonlinear numerical relativity methods, we show the following. (i) Dark matter can pile up in the center of stars, leading to configurations and geometries oscillating with a frequency that is a multiple of f = 2.5 x 10(14) (m(B)c(2)/eV) Hz. These configurations are stable throughout most of the parameter space, and arise out of credible mechanisms for dark-matter capture. Stars with bosonic cores may also develop in other theories with effective mass couplings, such as (massless) scalar-tensor theories. We also show that (ii) collapse of the host star to a black hole is avoided by efficient gravitational cooling mechanisms.",
keywords = "BOSON-FERMION STARS, STABILITY, CONFIGURATIONS, PARTICLES",
author = "Richard Brito and Vitor Cardoso and Hirotada Okawa",
year = "2015",
month = sep,
day = "9",
doi = "10.1103/PhysRevLett.115.111301",
language = "English",
volume = "115",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "11",

}

RIS

TY - JOUR

T1 - Accretion of Dark Matter by Stars

AU - Brito, Richard

AU - Cardoso, Vitor

AU - Okawa, Hirotada

PY - 2015/9/9

Y1 - 2015/9/9

N2 - Searches for dark matter imprints are one of the most active areas of current research. We focus here on light fields with mass m(B), such as axions and axionlike candidates. Using perturbative techniques and full-blown nonlinear numerical relativity methods, we show the following. (i) Dark matter can pile up in the center of stars, leading to configurations and geometries oscillating with a frequency that is a multiple of f = 2.5 x 10(14) (m(B)c(2)/eV) Hz. These configurations are stable throughout most of the parameter space, and arise out of credible mechanisms for dark-matter capture. Stars with bosonic cores may also develop in other theories with effective mass couplings, such as (massless) scalar-tensor theories. We also show that (ii) collapse of the host star to a black hole is avoided by efficient gravitational cooling mechanisms.

AB - Searches for dark matter imprints are one of the most active areas of current research. We focus here on light fields with mass m(B), such as axions and axionlike candidates. Using perturbative techniques and full-blown nonlinear numerical relativity methods, we show the following. (i) Dark matter can pile up in the center of stars, leading to configurations and geometries oscillating with a frequency that is a multiple of f = 2.5 x 10(14) (m(B)c(2)/eV) Hz. These configurations are stable throughout most of the parameter space, and arise out of credible mechanisms for dark-matter capture. Stars with bosonic cores may also develop in other theories with effective mass couplings, such as (massless) scalar-tensor theories. We also show that (ii) collapse of the host star to a black hole is avoided by efficient gravitational cooling mechanisms.

KW - BOSON-FERMION STARS

KW - STABILITY

KW - CONFIGURATIONS

KW - PARTICLES

U2 - 10.1103/PhysRevLett.115.111301

DO - 10.1103/PhysRevLett.115.111301

M3 - Letter

VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 11

M1 - 111301

ER -

ID: 300070471