%0 Generic %1 martinezcarrillo2021contributions %A Martinez-Carrillo, Rebeca %A Hidalgo, Juan Carlos %A Malik, Karim A. %A Pourtsidou, Alkistis %D 2021 %K library %T Contributions from primordial non-Gaussianity and General Relativity to the galaxy power spectrum %U http://arxiv.org/abs/2107.10815 %X We compute the real space galaxy power spectrum, including the leading order effects of General Relativity and primordial non-Gaussianity from the $f_NL$ and $g_NL$ parameters. Such contributions come from the one-loop matter power spectrum terms dominant at large scales, and from the factors of the non-linear bias parameter $b_NL$ (akin to the Newtonian $b_\phi$). We use our modelling to assess the ability of Stage-IV surveys to constrain primordial non-Gaussianity. In addition, we show how this non-linear bias parameter can effectively renormalize diverging relativistic contributions at large scales.

@misc{martinezcarrillo2021contributions, abstract = {We compute the real space galaxy power spectrum, including the leading order effects of General Relativity and primordial non-Gaussianity from the $f_{\mathrm{NL}}$ and $g_{\mathrm{NL}}$ parameters. Such contributions come from the one-loop matter power spectrum terms dominant at large scales, and from the factors of the non-linear bias parameter $b_{\mathrm{NL}}$ (akin to the Newtonian $b_{\phi}$). We use our modelling to assess the ability of Stage-IV surveys to constrain primordial non-Gaussianity. In addition, we show how this non-linear bias parameter can effectively renormalize diverging relativistic contributions at large scales.}, added-at = {2021-07-23T12:02:14.000+0200}, author = {Martinez-Carrillo, Rebeca and Hidalgo, Juan Carlos and Malik, Karim A. and Pourtsidou, Alkistis}, biburl = {https://www.bibsonomy.org/bibtex/217a35d33b5a5ccc58a73804a8b575c01/gpkulkarni}, description = {Contributions from primordial non-Gaussianity and General Relativity to the galaxy power spectrum}, interhash = {4b86882e16c3f229a41a2b39094c4b96}, intrahash = {17a35d33b5a5ccc58a73804a8b575c01}, keywords = {library}, note = {cite arxiv:2107.10815Comment: 15 pages, 5 figures}, timestamp = {2021-07-23T12:02:14.000+0200}, title = {Contributions from primordial non-Gaussianity and General Relativity to the galaxy power spectrum}, url = {http://arxiv.org/abs/2107.10815}, year = 2021 }