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A Short Review on the Latest Neutrinos Mass and Number Constraints from Cosmological Observables

open access: yesUniverse, 2022
We review the neutrino science, focusing on its impact on cosmology along with the latest constraints on its mass and number of species. We also discuss its status as a possible solution to some of the recent cosmological tensions, such as the Hubble ...
Ziad Sakr
doaj   +1 more source

Detecting gravitational waves from cosmological phase transitions with LISA: an update [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2019
We investigate the potential for observing gravitational waves from cosmological phase transitions with LISA in light of recent theoretical and experimental developments. Our analysis is based on current state-of-the-art simulations of sound waves in the
C. Caprini   +13 more
semanticscholar   +1 more source

Cosmological backgrounds of gravitational waves [PDF]

open access: yesClassical and quantum gravity, 2018
Gravitational waves (GWs) have a great potential to probe cosmology. We review early universe sources that can lead to cosmological backgrounds of GWs.
C. Caprini, Daniel G. Figueroa
semanticscholar   +1 more source

Evolution of cosmological horizons of wormhole cosmology [PDF]

open access: yesInternational Journal of Modern Physics D, 2020
Recently, we solved Einstein’s field equations to obtain the exact solution of the cosmological model with the Morris–Thorne-type wormhole. We found the apparent horizons and analyzed their geometric natures, including the causal structures. We also derived the Hawking temperature near the apparent cosmological horizon.
openaire   +3 more sources

Cosmological aspects of the clockwork axion

open access: yesJournal of High Energy Physics, 2018
The clockwork axion refers to a family of aligned multi-axion models that lead to an exponential hierarchy between the scale of Peccei-Quinn symmetry breaking and the scale of the axion decay constant.
Andrew J. Long
doaj   +1 more source

Little Ado about Everything: ηCDM, a Cosmological Model with Fluctuation-driven Acceleration at Late Times

open access: yesThe Astrophysical Journal, 2023
We propose a model of the Universe (dubbed η CDM) featuring a controlled stochastic evolution of the cosmological quantities that is meant to render the effects of small deviations from homogeneity/isotropy on scales of 30–50 h ^−1 Mpc at late cosmic ...
Andrea Lapi   +6 more
doaj   +1 more source

Precision cosmology, Accuracy cosmology and Statistical cosmology [PDF]

open access: yesProceedings of the International Astronomical Union, 2014
AbstractThe avalanche of data over the past 10-20 years has propelled cosmology into the “precision era”. The next challenge cosmology has to meet is to enter the era of accuracy. Because of the intrinsic nature of studying the Cosmos and the sheer amount of data available now and coming soon, the only way to meet this challenge is by developing ...
openaire   +1 more source

Cutting cosmological correlators [PDF]

open access: yes, 2021
The initial conditions of our universe appear to us in the form of a classical probability distribution that we probe with cosmological observations.
H. Goodhew   +3 more
semanticscholar   +1 more source

The cosmology of fluctuations [PDF]

open access: yesChaos, Solitons & Fractals, 2003
We review a cosmology in which particles are fluctuationally created from a background Zero Point Field. This cosmology is consistent with recent observations of an ever expanding and accelerating universe, as also the recently confirmed evolution of the fine structure constant.
openaire   +3 more sources

Updates from the ANITA Experiment

open access: yesEPJ Web of Conferences, 2017
The ANtarctic Impulsive Transient Antenna (ANITA) collaboration deploys balloonborne interferometric antenna payloads that fly at 37 km above Antarctica.
Deaconu Cosmin
doaj   +1 more source

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