Gravitational wave memory in ΛcDM cosmology

Lydia Bieri, David Garfinkle, Nicolás Yunes

Research output: Contribution to journalArticlepeer-review


We examine gravitational wave memory in the case where sources and detector are in a ΛCDM cosmology. We consider the case where the Universe can be highly inhomogeneous, but gravitational radiation is treated in the short wavelength approximation. We find results very similar to those of gravitational wave memory in an asymptotically flat spacetime; however, the overall magnitude of the memory effect is enhanced by a redshift-dependent factor. In addition, we find the memory can be affected by lensing.

Original languageEnglish (US)
Article number215002
JournalClassical and Quantum Gravity
Issue number21
StatePublished - Sep 28 2017
Externally publishedYes


  • cosmology
  • gravitational wave
  • memory

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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