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

Tutkimustuotos: Artikkelijulkaisu › Artikkeli › Tieteellinen › vertaisarvioitu

Abstrakti

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.

Alkuperäiskieli	englanti
Artikkeli	55
Lehti	Journal of High Energy Physics
Vuosikerta	2023
Numero	5
Sivumäärä	29
ISSN	1029-8479
DOI - pysyväislinkit	https://doi.org/10.1007/JHEP05(2023)055
Tila	Julkaistu - 8 toukok. 2023
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä, vertaisarvioitu

Tieteenalat

114 Fysiikka
115 Avaruustieteet ja tähtitiede

Pääsy asiakirjaan

10.1007/JHEP05(2023)055Lisenssi: CC BY

JHEP05(2023)055Lopullinen julkaistu versio, 493 KBLisenssi: CC BY

Siteeraa tätä

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AU - Kajantie, Keijo

AU - Sarkkinen, Miika

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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.

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KW - 115 Astronomy, Space science

U2 - 10.1007/JHEP05(2023)055

DO - 10.1007/JHEP05(2023)055

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JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

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