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Paper   IPM / Astronomy / 15603
School of Astronomy
  Title:   Imprints of local lightcone projection effects on the galaxy bispectrum IV: second-order vector and tensor contributions
1.  Sh. Jolicoeur
2.  A. Allahyari
3.  Ch. Clarkson
4.  J. Larena
5.  O. Umeh
6.  R. Maartens
  Status:   Published
  Journal: JCAP
  Year:  2019
  Supported by:            ipm IPM
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.

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