dc.contributor.author | Maartens, R | |
dc.contributor.author | Jolicoeur, S | |
dc.contributor.author | Umeh, O | |
dc.contributor.author | Weerd, EMD | |
dc.contributor.author | Clarkson, C | |
dc.contributor.author | Camera, S | |
dc.date.accessioned | 2020-05-06T09:36:14Z | |
dc.date.available | 2020-05-06T09:36:14Z | |
dc.date.issued | 2020-03 | |
dc.identifier.citation | Maartens, Roy et al. "Detecting The Relativistic Galaxy Bispectrum". Journal Of Cosmology And Astroparticle Physics, vol 2020, no. 03, 2020, pp. 065-065. IOP Publishing, doi:10.1088/1475-7516/2020/03/065. Accessed 6 May 2020. | en_US |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/63965 | |
dc.description.abstract | The Fourier galaxy bispectrum is complex, with the imaginary part arising from leading-order relativistic corrections, due to Doppler, gravitational redshift and related line-of-sight effects in redshift space. The detection of the imaginary part of the bispectrum is potentially a smoking gun signal of relativistic contributions. We investigate whether next-generation spectroscopic surveys could make such a detection. For a Stage IV spectroscopic Hα survey similar to Euclid, we find that the cumulative signal to noise of this relativistic signature is Script O(10). Long-mode relativistic effects couple to short-mode Newtonian effects in the galaxy bispectrum, but not in the galaxy power spectrum. This is the basis for detectability of relativistic effects in the bispectrum of a single galaxy survey, whereas the power spectrum requires multiple galaxy surveys to detect the corresponding signal. | en_US |
dc.format.extent | 065 - 065 | |
dc.publisher | IOP Publishing | en_US |
dc.relation.ispartof | Journal of Cosmology and Astroparticle Physics | |
dc.rights | The version of record is available https://iopscience.iop.org/article/10.1088/1475-7516/2020/03/065 | |
dc.title | Detecting the relativistic galaxy bispectrum | en_US |
dc.type | Article | en_US |
dc.rights.holder | © 2020 IOP Publishing Ltd and Sissa Medialab | |
dc.identifier.doi | 10.1088/1475-7516/2020/03/065 | |
pubs.issue | 03 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published online | en_US |
pubs.volume | 2020 | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |