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One of possible explanations of a faint narrow emission line at 3.5 keV reported in our Galaxy, Andromeda galaxy and a number of galaxy clusters is the dark matter made of 7 keV sterile neutrinos. Another signature of such sterile neutrino…

Cosmology and Nongalactic Astrophysics · Physics 2018-11-28 Anton Rudakovskyi , Dmytro Iakubovskyi

Planck measurements of the cosmic microwave background power spectra find a lower value of the Hubble constant $H_0$ and a higher value of the fractional matter energy density $\Omega_{m0}$ for the concordance $\Lambda$CDM model, and these…

Cosmology and Nongalactic Astrophysics · Physics 2014-05-01 Qing Gao , Yungui Gong

Short baseline neutrino experiments such as LSND and MiniBooNE seem to suggest the existence of light sterile neutrinos. Meanwhile, current cosmic microwave background (CMB) and big bang nucleosynthesis (BBN) measurements place an upper…

High Energy Physics - Phenomenology · Physics 2015-06-12 Chiu Man Ho , Robert J. Scherrer

The light neutrino masses are at present most stringently constraint via cosmological probes. In particular the Planck collaboration reports $ \sum m_\nu \leq 0.12\,\mathrm{eV}$ at $95\%$ CL within the standard cosmological model. This is…

High Energy Physics - Phenomenology · Physics 2022-05-17 Stefan Sandner

(abridged) High-z galaxy redshift surveys open up exciting possibilities for precision determinations of neutrino masses and inflationary models. The high-z surveys are more useful for cosmology than low-z ones owing to much weaker…

Astrophysics · Physics 2009-11-13 Masahiro Takada , Eiichiro Komatsu , Toshifumi Futamase

We show that, in flat $\Lambda$CDM, low-redshift structure probes -- cluster abundances, 3$\times$2-point analyses, and full-shape clustering -- are mutually consistent, jointly delivering precise constraints on $\sigma_8$ and $\Omega_{\rm…

Cosmology and Nongalactic Astrophysics · Physics 2025-12-11 Andrés N. Salcedo , Eduardo Rozo , Hao-Yi Wu , Shulei Cao , Enrique Paillas , Hanyu Zhang , Eli S. Rykoff

New physics in the neutrino sector might be necessary to address anomalies between different neutrino oscillation experiments. Intriguingly, it also offers a possible solution to the discrepant cosmological measurements of $H_0$ and…

Cosmology and Nongalactic Astrophysics · Physics 2020-07-01 Christina D. Kreisch , Francis-Yan Cyr-Racine , Olivier Doré

In this paper, we have constrained the neutrino mass and mass hierarchy in the $\Lambda$CDM cosmology with the neutrino mass hierarchy parameter $\Delta$, which represents different mass orderings, by using the {\it Planck} 2015 + BAO + SN…

Cosmology and Nongalactic Astrophysics · Physics 2019-04-23 Wenxue Zhang , En-Kun li , Minghui Du , Yuhao Mu , Shouli Ning , Baorong Chang , Lixin Xu

We revisit the possibility of using cosmological observations to constrain models that involve interactions between neutrinos and dark matter. We show that small-scale measurements of the cosmic microwave background with a few per cent…

Cosmology and Nongalactic Astrophysics · Physics 2023-10-31 Philippe Brax , Carsten van de Bruck , Eleonora Di Valentino , William Giarè , Sebastian Trojanowski

In this work, we investigate the constraints on the total neutrino mass in the scenario of vacuum energy interacting with cold dark matter (abbreviated as I$\Lambda$CDM) by using the latest cosmological observations. We consider four…

Cosmology and Nongalactic Astrophysics · Physics 2020-11-16 Hai-Li Li , Jing-Fei Zhang , Xin Zhang

We investigate the cosmological implications of the latest growth of structure measurement from the Baryon Oscillation Spectroscopic Survey (BOSS) CMASS Data Release 11 with particular focus on the sum of the neutrino masses, $\sum…

Minimal dark energy models, described by the same number of free parameters of the standard cosmological model with cold dark matter plus a cosmological constant to parameterize the dark energy component, constitute very appealing scenarios…

Cosmology and Nongalactic Astrophysics · Physics 2022-05-25 Eleonora Di Valentino , Stefano Gariazzo , Carlo Giunti , Olga Mena , Supriya Pan , Weiqiang Yang

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…

Astrophysics · Physics 2008-11-26 Kevork Abazajian , Eric R. Switzer , Scott Dodelson , Katrin Heitmann , Salman Habib

The clustering ratio is defined as the ratio between the correlation function and the variance of the smoothed overdensity field. In LCDM cosmologies not accounting for massive neutrinos, it has already been proved to be independent from…

Cosmology and Nongalactic Astrophysics · Physics 2018-04-19 Matteo Zennaro , Julien Bel , Jason Dossett , Carmelita Carbone , Luigi Guzzo

The $\Lambda$CDM cosmological model provides to first approximation a good description of the universe, but various tensions with data, most notably Hubble tension, persist. In this work we confront $\Lambda$CDM with the Pantheon Type Ia…

Cosmology and Nongalactic Astrophysics · Physics 2019-09-11 Eoin Ó Colgáin

The recent measurements of the Hubble constant based on the standard $\Lambda$CDM cosmology reveal an underlying disagreement between the early-Universe estimates and the late-time measurements. Moreover, as these measurements improve, the…

General Physics · Physics 2020-11-25 Ram Gopal Vishwakarma

We explore the renormalization group-based extension of the $\Lambda$CDM model as a potential solution to the current cosmological tensions. In this approach, both the cosmological constant density and Newton's constant are allowed to vary…

Cosmology and Nongalactic Astrophysics · Physics 2025-09-30 Nicolas R. Bertini , Marcos H. Novaes , Rodrigo von Marttens , Ilya L. Shapiro

The tensions between the values of Hubble constant obtained from the early and the late Universe data pose a significant challenge to modern cosmology. Possible modifications of the flat homogeneous isotropic cosmological {\Lambda}CDM model…

Cosmology and Nongalactic Astrophysics · Physics 2021-10-14 S. L. Parnovsky

We employ state-of-the art cosmological observables including supernova surveys and BAO information to provide constraints on the mass and mixing angle of a non-resonantly produced sterile neutrino species, showing that cosmology can…

Cosmology and Nongalactic Astrophysics · Physics 2015-07-10 Aaron C. Vincent , Enrique Fernandez Martinez , Pilar Hernandez , Massimiliano Lattanzi , Olga Mena

We present an updated analysis of eleven cosmological models that may help reduce the Hubble tension, which now reaches the $6\sigma$ level when considering the latest SH0ES measurement versus recent CMB and BAO data, assuming $\Lambda$CDM.…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-09 Ali Rida Khalife , Maryam Bahrami Zanjani , Silvia Galli , Sven Günther , Julien Lesgourgues , Karim Benabed