Results 41 to 50 of about 492,367 (339)

MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics [PDF]

open access: yes, 2008
We present further development and the first public release o f our multimodal nested sampling algorithm, called MULTINEST. This Bayesian inference tool calculates the evidence, with an associated error estimate, and produces posterior s amples from ...
F. Feroz, M. Hobson, M. Bridges
semanticscholar   +1 more source

The Atacama Cosmology Telescope: a measurement of the Cosmic Microwave Background power spectra at 98 and 150 GHz [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2020
We present the temperature and polarization angular power spectra of the CMB measured by the Atacama Cosmology Telescope (ACT) from 5400 deg2 of the 2013–2016 survey, which covers >15000 deg2 at 98 and 150 GHz.
Steve K. Choi   +138 more
semanticscholar   +1 more source

String cosmology in Bianchi I space-time [PDF]

open access: yes, 2021
Some cosmological solutions of massive strings are obtained in Bianchi I space-time following the techniques used by Letelier and Stachel. A class of solutions corresponds to string cosmology associated with/without a magnetic field and the other class ...
Asit Banerjee, A. Sanyal, S. Chakraborty
semanticscholar   +1 more source

The concept of fractal cosmos, I: Anaxagoras’ cosmology [PDF]

open access: yesSerbian Astronomical Journal, 2001
The concept of a fractal cosmos occupies a prominent position in the modern cosmology. We trace the development of this concept from the presocratic Greece to the present state of affairs.
Grujić P.V.
doaj   +1 more source

Post-inflationary brane cosmology [PDF]

open access: yes, 2001
The brane cosmology has invoked new challenges to the usual Big Bang cosmology. In this paper we present a brief account on thermal history of the post-inflationary brane cosmology. We have realized that it is not obvious that the post-inflationary brane
Affleck   +63 more
core   +2 more sources

Cosmology of axion dark matter [PDF]

open access: yesProceedings of 1st General Meeting and 1st Training School of the COST Action COSMIC WSIPers — PoS(COSMICWISPers)
I present an introduction and topical review on axions as a dark matter candidate. Emphasis is placed on issues surrounding the cosmology of axion dark matter that are relevant for present-day searches, including: early-Universe production mechanisms ...
C. O’Hare
semanticscholar   +1 more source

Particle Physics and Inflationary Cosmology [PDF]

open access: yesPhysics today, 1987
With the invention of unified theories of strong, weak, electromagnetic and gravitational interactions, elementaryparticle physics has entered a very interesting and unusual stage of its development.
Andrei Linde
semanticscholar   +1 more source

Planck evidence for a closed Universe and a possible crisis for cosmology [PDF]

open access: yesNature Astronomy, 2019
The recent Planck Legacy 2018 release has confirmed the presence of an enhanced lensing amplitude in cosmic microwave background power spectra compared with that predicted in the standard Λ cold dark matter model, where Λ is the cosmological constant.
Eleonora di Valentino   +2 more
semanticscholar   +1 more source

Late-time cosmology with phantom dark-energy in f(Q) gravity [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2022
Motivated by the exciting features and a recent proposed general form of the function of non-metricity scalar Q, we investigate the cosmological implications in f(Q) gravity, through the resulting effective dark energy sector, extracting analytical ...
Andreas Lymperis
semanticscholar   +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

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