%0 Generic %1 lazeyras2020impact %A Lazeyras, Titouan %A Villaescusa-Navarro, Francisco %A Viel, Matteo %D 2020 %K physics %T The impact of massive neutrinos on halo assembly bias %U http://arxiv.org/abs/2008.12265 %X Using the publicly available Quijote simulations, we present the first measurements of the assembly bias of dark matter halos in N-body simulations which include massive neutrinos. We focus on the dependence of the linear bias $b_1$ on three halo properties: 1) concentration $c$, 2) spin $łambda$, and 3) ellipticity $s$. Although these simulations cover a large volume, superior to any future surveys, we do not detect any effect of neutrinos on the relations $b_1(c)$, $b_1(łambda)$ and $b_1(s)$ at fixed halo mass. We further study the dependence of halo properties and environment on neutrinos, finding these quantities to be impacted by neutrino masses at the same level as assembly bias. We find that the effect of neutrinos on spin and shape can be largely attributed to the change in the cold dark matter $\sigma_8$ in neutrinos simulations, which is not the case for concentration.

@misc{lazeyras2020impact, abstract = {Using the publicly available Quijote simulations, we present the first measurements of the assembly bias of dark matter halos in N-body simulations which include massive neutrinos. We focus on the dependence of the linear bias $b_1$ on three halo properties: 1) concentration $c$, 2) spin $\lambda$, and 3) ellipticity $s$. Although these simulations cover a large volume, superior to any future surveys, we do not detect any effect of neutrinos on the relations $b_1(c)$, $b_1(\lambda)$ and $b_1(s)$ at fixed halo mass. We further study the dependence of halo properties and environment on neutrinos, finding these quantities to be impacted by neutrino masses at the same level as assembly bias. We find that the effect of neutrinos on spin and shape can be largely attributed to the change in the cold dark matter $\sigma_8$ in neutrinos simulations, which is not the case for concentration.}, added-at = {2020-08-28T18:16:10.000+0200}, author = {Lazeyras, Titouan and Villaescusa-Navarro, Francisco and Viel, Matteo}, biburl = {https://www.bibsonomy.org/bibtex/2d8743dc28896b9a4b523269d3d31b1f9/domcorvasce}, description = {The impact of massive neutrinos on halo assembly bias}, interhash = {b0776f16ef706875b2010bac0dda2600}, intrahash = {d8743dc28896b9a4b523269d3d31b1f9}, keywords = {physics}, note = {cite arxiv:2008.12265Comment: 25 pages, 9 figures}, timestamp = {2020-08-28T18:16:10.000+0200}, title = {The impact of massive neutrinos on halo assembly bias}, url = {http://arxiv.org/abs/2008.12265}, year = 2020 }