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The effects of mass-varying neutrinos on cosmic microwave background (CMB) anisotropies and large scale structures (LSS) are studied. In these models, dark energy and neutrinos are coupled such that the neutrino masses are functions of the…

天体物理学 · 物理学 2014-10-13 A. W. Brookfield , C. van de Bruck , D. F. Mota , D. Tocchini-Valentini

We present cosmological perturbation theory in neutrino probe interacting dark-energy models, and calculate cosmic microwave background anisotropies and matter power spectrum. In these models, the evolution of the mass of neutrinos is…

高能物理 - 唯象学 · 物理学 2008-11-26 Yong-Yeon Keum

We investigate whether interaction between massive neutrinos and quintessence scalar field is the origin of the late time accelerated expansion of the universe. We present explicit formulas of the cosmological linear perturbation theory in…

高能物理 - 唯象学 · 物理学 2009-09-01 Kiyotomo Ichiki , Yong-Yeon Keum

Consequences of a new force mediated by a light scalar particle for neutrino oscillation experiments are considered. Such a force could give rise to neutrino masses and mixings whose matter dependence is much more significant than the MSW…

高能物理 - 唯象学 · 物理学 2008-11-26 Kathryn M. Zurek

We present cosmological perturbation theory in neutrinos probe interacting dark-energy models, and calculate cosmic microwave background anisotropies and matter power spectrum. In these models, the evolution of the mass of neutrinos is…

天体物理学 · 物理学 2009-06-23 Kiyotomo Ichiki , Yong-Yeon Keum

Models of dark energy in which neutrinos interact with the scalar field supposed to be responsible for the acceleration of the universe usually imply a variation of the neutrino masses on cosmological time scales. In this work we propose a…

宇宙学与河外天体物理 · 物理学 2009-11-06 Urbano Franca , Massimiliano Lattanzi , Julien Lesgourgues , Sergio Pastor

Cosmological consequences of a coupling between massive neutrinos and dark energy are investigated. In such models, the neutrino mass is a function of a scalar field, which plays the role of dark energy. The background evolution, as well as…

天体物理学 · 物理学 2010-04-06 A. W. Brookfield , C. van de Bruck , D. F. Mota , D. Tocchini-Valentini

We review the impact of massive neutrinos on cosmological observables at the linear order. By means of N-body simulations we investigate the signatures left by neutrinos on the fully non-linear regime. We present the effects induced by…

宇宙学与河外天体物理 · 物理学 2015-01-20 Francisco Villaescusa-Navarro

We explore the effect of massive neutrinos on the weak lensing shear bispectrum using the Cosmological Massive Neutrino Simulations. We find that the primary effect of massive neutrinos is to suppress the amplitude of the bispectrum with…

宇宙学与河外天体物理 · 物理学 2019-06-05 William R. Coulton , Jia Liu , Mathew S. Madhavacheril , Vanessa Böhm , David N. Spergel

After reviewing the main mechanisms by which cosmological measurements constrain the sum of neutrino masses, I give the current reached upper limits, emphasizing the level of model-dependence. A large improvement is to be expected with…

宇宙学与河外天体物理 · 物理学 2015-03-17 Stephane Plaszczynski

We investigate the impact of massive neutrinos on cosmological models in which dark energy, described by a quintessence scalar field $\phi$ with an exponential potential, interacts with dark matter through both energy and momentum…

宇宙学与河外天体物理 · 物理学 2026-03-18 Jose Beltrán Jiménez , Kiyotomo Ichiki , Xiaolin Liu , Florencia Anabella Teppa Pannia , Shinji Tsujikawa

Cosmological observations are a powerful probe of neutrino properties, and in particular of their mass. In this review, we first discuss the role of neutrinos in shaping the cosmological evolution at both the background and perturbation…

宇宙学与河外天体物理 · 物理学 2017-12-20 Massimiliano Lattanzi , Martina Gerbino

I give an overview of the effects of neutrino masses in cosmology, focussing on the role they play in the evolution of cosmological perturbations. I discuss how recent observations of the cosmic microwave background anisotropies and the…

宇宙学与河外天体物理 · 物理学 2015-06-03 Yvonne Y. Y. Wong

Measuring the absolute scale of the neutrino masses is one of the most exciting opportunities available with near-term cosmological datasets. Two quantities that are sensitive to neutrino mass, scale-dependent halo bias $b(k)$ and the…

宇宙学与河外天体物理 · 物理学 2016-06-01 Marilena LoVerde

We investigate how matter density affects neutrino oscillations by considering a mass-varying neutrino scenario where the neutrino mass depends on a scalar field. This scalar field is non-minimally coupled to the Gauss-Bonnet (GB)…

高能物理 - 唯象学 · 物理学 2025-10-17 H. Mohseni Sadjadi , H. Yazdani Ahmadabadi

The framework for considering the astronomical and cosmological observations in the context of scalar-tensor quintessence in which the quintessence field also accounts for a time dependence of the gravitational constant is developed. The…

天体物理学 · 物理学 2010-05-28 Alain Riazuelo , Jean-Philippe Uzan

We investigate whether interaction between massive neutrinos and quintessence scalar field is the origin of the late time accelerated expansion of the universe. We present cosmological perturbation theory in neutrinos probe interacting…

天体物理学 · 物理学 2008-03-24 Kiyotomo Ichiki , Yong-Yeon Keum

The effect of massive neutrinos on matter power spectrum is discussed in the context of $f(R)$ gravity. It is shown that the anomalous growth of density fluctuations on small scales due to the scalaron force can be compensated by free…

宇宙学与河外天体物理 · 物理学 2010-10-27 Hayato Motohashi , Alexei A. Starobinsky , Jun'ichi Yokoyama

Measurements of the linear power spectrum of galaxies have placed tight constraints on neutrino masses. We extend the framework of the halo model of cosmological nonlinear matter clustering to include the effect of massive neutrino infall…

天体物理学 · 物理学 2008-11-26 Kevork Abazajian , Eric R. Switzer , Scott Dodelson , Katrin Heitmann , Salman Habib

Astrophysical and cosmological arguments and observations give us the most restrictive constraints on neutrino masses, electromagnetic couplings, and other properties. Conversely, massive neutrinos would contribute to the cosmic dark-matter…

高能物理 - 唯象学 · 物理学 2007-05-23 Georg G. Raffelt
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