Gravitational wave memory in conformally flat spacetimes

Niko Jokela; Keijo Kajantie; Miika Sarkkinen

doi:10.1007/JHEP05(2023)055

Gravitational wave memory in conformally flat spacetimes

Niko Jokela, Keijo Kajantie, Miika Sarkkinen

Research output: Contribution to journal › Article › Scientific › peer-review

Abstract

We study the gravitational wave memory effect in spacetimes related to flat space by a conformal transformation. The discussion is general but the gravitational wave length scale is assumed to be small compared with the background curvature radius. The general formulas are applied to Friedmann-Robertson-Walker metrics of all spatial curvatures. The effect of new terms stemming from spatial curvature is potentially detectable in future gravitational wave measurements.

Original language	English
Article number	55
Journal	Journal of High Energy Physics
Volume	2023
Issue number	5
Number of pages	29
ISSN	1029-8479
DOIs	https://doi.org/10.1007/JHEP05(2023)055
Publication status	Published - 8 May 2023
MoE publication type	A1 Journal article-refereed

Fields of Science

114 Physical sciences
115 Astronomy, Space science

Access to Document

10.1007/JHEP05(2023)055Licence: CC BY

JHEP05(2023)055Final published version, 493 KBLicence: CC BY

Cite this

@article{7018176b592242f6947e78bd5fcce380,

title = "Gravitational wave memory in conformally flat spacetimes",

abstract = "We study the gravitational wave memory effect in spacetimes related to flat space by a conformal transformation. The discussion is general but the gravitational wave length scale is assumed to be small compared with the background curvature radius. The general formulas are applied to Friedmann-Robertson-Walker metrics of all spatial curvatures. The effect of new terms stemming from spatial curvature is potentially detectable in future gravitational wave measurements.",

keywords = "114 Physical sciences, 115 Astronomy, Space science",

author = "Niko Jokela and Keijo Kajantie and Miika Sarkkinen",

year = "2023",

month = may,

day = "8",

doi = "10.1007/JHEP05(2023)055",

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer-Verlag",

number = "5",

}

TY - JOUR

T1 - Gravitational wave memory in conformally flat spacetimes

AU - Jokela, Niko

AU - Kajantie, Keijo

AU - Sarkkinen, Miika

PY - 2023/5/8

Y1 - 2023/5/8

N2 - We study the gravitational wave memory effect in spacetimes related to flat space by a conformal transformation. The discussion is general but the gravitational wave length scale is assumed to be small compared with the background curvature radius. The general formulas are applied to Friedmann-Robertson-Walker metrics of all spatial curvatures. The effect of new terms stemming from spatial curvature is potentially detectable in future gravitational wave measurements.

AB - We study the gravitational wave memory effect in spacetimes related to flat space by a conformal transformation. The discussion is general but the gravitational wave length scale is assumed to be small compared with the background curvature radius. The general formulas are applied to Friedmann-Robertson-Walker metrics of all spatial curvatures. The effect of new terms stemming from spatial curvature is potentially detectable in future gravitational wave measurements.

KW - 114 Physical sciences

KW - 115 Astronomy, Space science

U2 - 10.1007/JHEP05(2023)055

DO - 10.1007/JHEP05(2023)055

M3 - Article

SN - 1029-8479

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 55

ER -