Scattering of point particles by black holes: Gravitational radiation
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Scattering of point particles by black holes : Gravitational radiation. / Hopper, Seth; Cardoso, Vitor.
I: Physical Review D, Bind 97, Nr. 4, 044031, 21.02.2018.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Scattering of point particles by black holes
T2 - Gravitational radiation
AU - Hopper, Seth
AU - Cardoso, Vitor
PY - 2018/2/21
Y1 - 2018/2/21
N2 - Gravitational waves can teach us not only about sources and the environment where they were generated, but also about the gravitational interaction itself. Here we study the features of gravitational radiation produced during the scattering of a pointlike mass by a black hole. Our results are exact (to numerical error) at any order in a velocity expansion, and are compared against various approximations. At large impact parameter and relatively small velocities our results agree to within percent level with various post-Newtonian and weak-field results. Further, we find good agreement with scaling predictions in the weakfield/high-energy regime. Lastly, we achieve striking agreement with zero-frequency estimates.
AB - Gravitational waves can teach us not only about sources and the environment where they were generated, but also about the gravitational interaction itself. Here we study the features of gravitational radiation produced during the scattering of a pointlike mass by a black hole. Our results are exact (to numerical error) at any order in a velocity expansion, and are compared against various approximations. At large impact parameter and relatively small velocities our results agree to within percent level with various post-Newtonian and weak-field results. Further, we find good agreement with scaling predictions in the weakfield/high-energy regime. Lastly, we achieve striking agreement with zero-frequency estimates.
KW - MASSES
KW - COLLISIONS
KW - PHOTONS
KW - SYSTEMS
U2 - 10.1103/PhysRevD.97.044031
DO - 10.1103/PhysRevD.97.044031
M3 - Journal article
VL - 97
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 4
M1 - 044031
ER -
ID: 299202934