Imprints of local lightcone projection effects on the galaxy bispectrum IV: second-order vector and tensor contributions

Sheean Jolicoeur, Alireza Allahyari, Chris Clarkson, Julien Larena, Obinna Umeh, Roy Maartens

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Abstract

The galaxy bispectrum on scales around and above the equality scale receives contributions from relativistic effects. Some of these arise from lightcone deformation effects, which come from local and line-of-sight integrated contributions. Here we calculate the local contributions from the generated vector and tensor background which is formed as scalar modes couple and enter the horizon. We show that these modes are sub-dominant when compared with other relativistic contributions.
Original languageEnglish
Article number004
Pages (from-to)1-17
Number of pages17
JournalJournal of Cosmology and Astroparticle Physics
Volume2019
Issue number03
DOIs
Publication statusPublished - 1 Mar 2019

Keywords

  • astro-ph.CO
  • gr-qc
  • RCUK
  • STFC
  • ST/P000592/1
  • ST/N000668/1

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