Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Eline M. De Weerd"'
Autor:
Obinna Umeh, Eline M. De Weerd, Sheean Jolicoeur, Roy Maartens, Chris Clarkson, Stefano Camera
Publikováno v:
Maartens, R, Jolicoeur, S, Umeh, O, Weerd, E M D, Clarkson, C & Camera, S 2020, ' Detecting the relativistic galaxy bispectrum ', Journal of Cosmology and Astroparticle Physics, vol. 2020, no. 03, 065 . https://doi.org/10.1088/1475-7516/2020/03/065
The Fourier-space 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 pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c99565138f7e4a8ee40172a248619036
https://researchportal.port.ac.uk/ws/files/19876536/1911.02398v3.pdf
https://researchportal.port.ac.uk/ws/files/19876536/1911.02398v3.pdf
Next-generation galaxy and 21cm intensity mapping surveys will rely on a combination of the power spectrum and bispectrum for high-precision measurements of primordial non-Gaussianity. In turn, these measurements will allow us to distinguish between
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::662cc6068a29745553dede5d8da03039
Publikováno v:
Weerd, E M D, Clarkson, C, Jolicoeur, S, Maartens, R & Umeh, O 2020, ' Multipoles of the relativistic galaxy bispectrum ', Journal of Cosmology and Astroparticle Physics, vol. 2020, no. 05, 018, pp. 1-36 . https://doi.org/10.1088/1475-7516/2020/05/018
Above the equality scale the galaxy bispectrum will be a key probe for measuring primordial non-Gaussianity which can help differentiate between different inflationary models and other theories of the early universe. On these scales a variety of rela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f383408a97c63fffe23f0adb97145be6
Publikováno v:
Clarkson, C, Weerd, E M D, Jolicoeur, S, Maartens, R & Umeh, O 2019, ' The dipole of the galaxy bispectrum ', Monthly Notices of the Royal Astronomical Society, vol. 486, no. 1, pp. L101-L104 . https://doi.org/10.1093/mnrasl/slz066
The bispectrum will play an important role in future galaxy surveys. On large scales it is a key probe for measuring primordial non-Gaussianity which can help differentiate between different inflationary models and other theories of the early univers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31621ae3ecfb1aa83815064ae5f7f368
http://arxiv.org/abs/1812.09512
http://arxiv.org/abs/1812.09512