Black holes in galaxies: Environmental impact on gravitational-wave generation and propagation
Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Standard
Black holes in galaxies : Environmental impact on gravitational-wave generation and propagation. / Cardoso, Vitor; Destounis, Kyriakos; Duque, Francisco; Macedo, Rodrigo Panosso; Maselli, Andrea.
I: Physical Review D, Bind 105, Nr. 6, 061501, 14.03.2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - Black holes in galaxies
T2 - Environmental impact on gravitational-wave generation and propagation
AU - Cardoso, Vitor
AU - Destounis, Kyriakos
AU - Duque, Francisco
AU - Macedo, Rodrigo Panosso
AU - Maselli, Andrea
PY - 2022/3/14
Y1 - 2022/3/14
N2 - We introduce a family of solutions of Einstein's gravity minimally coupled to an anisotropic fluid, describing asymptotically flat black holes with "hair" and a regular horizon. These spacetimes can describe the geometry of galaxies harboring supermassive black holes, and are extensions of Einstein clusters to include horizons. They are useful to constrain the environment surrounding astrophysical black holes, using electromagnetic or gravitational-wave observations. We compute the main properties of the geometry, including the corrections to the ringdown stage induced by the external matter and fluxes by orbiting particles. The leading order effect to these corrections is a gravitational-redshift, but gravitational-wave propagation is affected by the galactic potential in a nontrivial way, and may be characterized with future observatories.
AB - We introduce a family of solutions of Einstein's gravity minimally coupled to an anisotropic fluid, describing asymptotically flat black holes with "hair" and a regular horizon. These spacetimes can describe the geometry of galaxies harboring supermassive black holes, and are extensions of Einstein clusters to include horizons. They are useful to constrain the environment surrounding astrophysical black holes, using electromagnetic or gravitational-wave observations. We compute the main properties of the geometry, including the corrections to the ringdown stage induced by the external matter and fluxes by orbiting particles. The leading order effect to these corrections is a gravitational-redshift, but gravitational-wave propagation is affected by the galactic potential in a nontrivial way, and may be characterized with future observatories.
KW - DARK-MATTER
KW - SPHERICAL GALAXIES
KW - RADIATION
KW - MODELS
KW - FIELD
KW - PERTURBATIONS
KW - OSCILLATIONS
KW - INSTABILITY
KW - PULSATION
KW - EXISTENCE
U2 - 10.1103/PhysRevD.105.L061501
DO - 10.1103/PhysRevD.105.L061501
M3 - Journal article
VL - 105
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 6
M1 - 061501
ER -
ID: 303676608