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Cosmological neutrinos strongly affect the evolution of the largest structures in the Universe, i.e. galaxies and galaxy clusters. We use large box-size full hydrodynamic simulations to investigate the non-linear effects that massive…

Cosmology and Nongalactic Astrophysics · Physics 2011-11-16 Federico Marulli , Carmelita Carbone , Matteo Viel , Lauro Moscardini , Andrea Cimatti

Neutrinos are the most abundant fermions in the Universe and influence the formation of large-scale structure through both their non-zero masses and a possible chemical potential which can be described by a single asymmetry parameter. While…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-16 Yizhou Liu , Wangzheng Zhang , Shihong Liao , Liang Gao

Massive neutrinos suppress the growth of cosmic structure on small, non-linear, scales. It is thus often proposed that using statistics beyond the power spectrum can tighten constraints on the neutrino mass by extracting additional…

Cosmology and Nongalactic Astrophysics · Physics 2022-06-16 Adrian E. Bayer , Arka Banerjee , Uros Seljak

We study the spherical, top-hat collapse model for a mixed dark matter model including cold dark matter (CDM) and massive neutrinos of mass scales ranging from m_nu= 0.05 to a few 0.1eV, the range of lower- and upper-bounds implied from the…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Kiyotomo Ichiki , Masahiro Takada

Cosmic voids offer an extraordinary opportunity to study the effects of massive neutrinos on cosmological scales. Because they are freely streaming, neutrinos can penetrate the interior of voids more easily than cold dark matter or baryons,…

Cosmology and Nongalactic Astrophysics · Physics 2020-01-10 Nico Schuster , Nico Hamaus , Alice Pisani , Carmelita Carbone , Christina D. Kreisch , Giorgia Pollina , Jochen Weller

In the Standard Model, neutrinos are massless. However, oscillation experiments demonstrate that they do have a small mass. Currently, only the differences of the masses squared are known, along with an upper bound on their sum. Upcoming…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-20 Farshad Kamalinejad , Zachary Slepian

(abridged) We analyse the clustering features of Large Scale Structures (LSS) in the presence of massive neutrinos, employing a set of large-volume, high-resolution cosmological N-body simulations, where neutrinos are treated as a separate…

Cosmology and Nongalactic Astrophysics · Physics 2016-01-07 Emanuele Castorina , Carmelita Carbone , Julien Bel , Emiliano Sefusatti , Klaus Dolag

We explore the effects of massive neutrinos on the cosmic web using the FLAMINGO simulations. We classify the cosmic web into voids, sheets, filaments, and clusters, and find that massive neutrinos affect the environment by decreasing the…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-19 Leonor N. L. Simões , Krishna Naidoo , Benjamin Joachimi , Willem Elbers , Carlos S. Frenk

We investigate the signatures left by massive neutrinos on the spatial distribution of neutral hydrogen (HI) in the post-reionization era by running hydrodynamic simulations that include massive neutrinos as additional collisionless…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-09 Francisco Villaescusa-Navarro , Philip Bull , Matteo Viel

Using cosmological $N$-body simulation which coevolves cold dark matter (CDM) and neutrino particles, we discover the local effect of massive neutrinos on the spatial distribution of CDM halos, reflected on properties of the Delaunay…

Cosmology and Nongalactic Astrophysics · Physics 2018-07-31 Jian Qin , Yu Liang , Cheng Zhao , Hao-Ran Yu , Yu Liu , Tong-Jie Zhang

Massive neutrinos make up a fraction of the dark matter, but due to their large thermal velocities, cluster significantly less than cold dark matter (CDM) on small scales. An accurate theoretical modelling of their effect during the…

Cosmology and Nongalactic Astrophysics · Physics 2015-08-21 Yacine Ali-Haïmoud , Simeon Bird

Light but massive cosmological neutrinos do not cluster significantly on small scales, due to their high thermal velocities. With finite masses, cosmological neutrinos become part of the total matter field and contribute to its smoothing.…

Cosmology and Nongalactic Astrophysics · Physics 2019-03-20 Zhichao Zeng , Shek Yeung , Ming-Chung Chu

We investigate the non-linear evolution of the relic cosmic neutrino background by running large box-size, high resolution N-body simulations. Our set of simulations explore the properties of neutrinos in a reference $\Lambda$CDM model with…

Cosmology and Nongalactic Astrophysics · Physics 2015-12-09 Francisco Villaescusa-Navarro , Simeon Bird , Carlos Peña-Garay , Matteo Viel

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…

Cosmology and Nongalactic Astrophysics · Physics 2021-03-23 Titouan Lazeyras , Francisco Villaescusa-Navarro , Matteo Viel

The presence of massive neutrinos affects the growth of large-scale structure in the universe, leaving a potentially observable imprint on the abundance and properties of massive dark matter-dominated halos. Cosmological surveys detect…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-31 Rahul Biswas , Katrin Heitmann , Salman Habib , Amol Upadhye , Adrian Pope , Nicholas Frontiere

We present a detailed analytical study of ultra-relativistic neutrinos in cosmological perturbation theory and of the observable signatures of inhomogeneities in the cosmic neutrino background. We note that a modification of perturbation…

Astrophysics · Physics 2008-11-26 Sergei Bashinsky , Uros Seljak

Gravitational redshifts and other relativistic effects are beginning to be studied in the context of galaxy clustering. Distortions consistent with those expected in General Relativity have been measured in galaxy cluster redshift profiles…

Cosmology and Nongalactic Astrophysics · Physics 2019-01-18 Hongyu Zhu , Shadab Alam , Rupert A. C. Croft , Shirley Ho , Elena Giusarma

Modified gravity and massive neutrino cosmologies are two of the most interesting scenarios that have been recently explored to account for possible observational deviations from the concordance $\Lambda$-cold dark matter ($\Lambda$CDM)…

Cosmology and Nongalactic Astrophysics · Physics 2019-07-15 Jorge Enrique García-Farieta , Federico Marulli , Alfonso Veropalumbo , Lauro Moscardini , Rigoberto Casas , Carlo Giocoli , Marco Baldi

Redshift space distortions are an important probe of the growth of large-scale structure and for constraining cosmological parameters in general. As galaxy redshift surveys approach percent level precision in their observations of the two…

Cosmology and Nongalactic Astrophysics · Physics 2024-08-28 Juliana Kwan , Ian G. McCarthy , Jaime Salcido

The constraints on neutrino masses led to the revision of their cosmological role, since the existence of a cosmological neutrino background is a clear prediction of the standard cosmological model. In this paper, we study the impact of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-22 Fabio Fontanot , Francisco Villaescusa-Navarro , Davide Bianchi , Matteo Viel
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