Advances in Research on Theories of the Dark Universe - Inhomogeneity Effects in Relativistic Cosmology | ARTHUS | Progetto | Risultati | H2020 | CORDIS

Cosmologie inhomogène et contraintes topologiques

Autori: Félix de la Salle
Pubblicato in: Internship Report, Numero Licence 3 - Paris Saclay, 2023, Pagina/e 24
Editore: University Lyon1

Topology and geometry of Gaussian random fields II: on critical points, excursion sets, and persistent homology

Autori: Pranav, Pratyush
Pubblicato in: Preprint, 2021, Pagina/e 29
Editore: Cornell University library
DOI: 10.48550/arxiv.2109.08721

Estimation of Expected Euler Characteristic Curves of Nonstationary Smooth Gaussian Random Fields

Autori: Fabian Telschow, Armin Schwartzman, Dan Cheng, Pratyush Pranav
Pubblicato in: Preprint, 2019, Pagina/e 21
Editore: Cornell University Library
DOI: 10.48550/arxiv.1908.02493

Alexandrov Theorem for 2+1 flat radiant spacetimes

Autori: Brunswic, Léo
Pubblicato in: Preprint, 2020, Pagina/e 56
Editore: Cornell University Library
DOI: 10.48550/arxiv.2012.01275

Gravitoelectromagnetism and Cosmology

Autori: Tom Boismard
Pubblicato in: Internship Report, Numero Master 2, 2023, Pagina/e 29
Editore: University Lyon1

The Inhomogeneous Radiation Cosmos

Autori: Shriya Hirve
Pubblicato in: Internship Report, Numero Licence 3 - IISER Pune, India, 2019, Pagina/e 5
Editore: École Normale Supérieure

Spherically symmetric solutions of General Relativity: topological constraints on average properties

Autori: Matthieu Chatelain
Pubblicato in: Internship Report, Numero Master 1, 2020, Pagina/e 30
Editore: Ecole Normale Supérieure

Averaging in Newtonian Inhomogeneous Cosmology

Autori: Rémi Faure
Pubblicato in: Internship Report, Numero Master 1, 2019, Pagina/e 29
Editore: University Lyon1

On branched coverings of singular $(G,X)$-manifolds

Autori: Brunswic, Léo
Pubblicato in: Preprint, 2020, Pagina/e 35
Editore: Cornell University Library
DOI: 10.48550/arxiv.2010.10610

Loops abound in the cosmic microwave background: A $4\sigma$ anomaly on super-horizon scales

Autori: Pranav, Pratyush
Pubblicato in: Preprint, 2021, Pagina/e 21
Editore: Cornell University Library
DOI: 10.48550/arxiv.2101.02237

Characterization of an anomaly of the CMB in the standard LCDM model: Alignment of low-order multipoles with the ecliptic plane

Autori: Clément Richard
Pubblicato in: Internship Report, Numero Licence 3, 2019, Pagina/e 20
Editore: University Lyon1

Non-perturbative collapse models for collisionless self-gravitating flows

Autori: Niels Fardeau
Pubblicato in: Internship Report, Numero Master 1, 2022, Pagina/e 30
Editore: University Lyon1

Averaged Inhomogeneous Cosmology: Fit to Supernovae without Dark Energy

Autori: Célia Desgrange
Pubblicato in: Internship Report, Numero Licence 3, 2018, Pagina/e 25
Editore: Université Lyon1

Towards a topological conservation law in averaged Newtonian cosmologies

Autori: Nathan Cohen
Pubblicato in: Internship Report, Numero Licence 3 -EPFL Lausanne, Switzerland, 2020, Pagina/e 20
Editore: Ecole Normale Supérieure

Inhomogeneities and Anisotropies in the Universe analyzed with Supernovae of Type Ia

Autori: Antonin Borderies
Pubblicato in: Internship Report, Numero Master 1, 2021, Pagina/e 22
Editore: University Lyon1

Space Is the Place - How to master spatial average properties of the Universe?

Autori: Thomas Buchert, Pierre Mourier, Xavier Roy
Pubblicato in: Classical and Quantum Gravity Plus, Numero Invited Insight Comment, 2018
Editore: Institute of Physics Publishing

Backreaction and Virialization: Volume partitioning of inhomogeneous Newtonian cosmologies

Autori: Alfred Bovon
Pubblicato in: Internship Report, Numero Master 2, 2021, Pagina/e 31
Editore: Ecole Normale Supérieure

Globally static and stationary inhomogeneous cosmologies

Autori: Francesco Sartini
Pubblicato in: Internship Report, Numero Master 1, 2018, Pagina/e 23
Editore: École Normale Supérieure

Inhomogeneous Cosmology in Spherical Space

Autori: Aubin Courty
Pubblicato in: Internship Report, Numero Master 1, 2022, Pagina/e 30
Editore: Ecole Normale Supérieure

Anomalies in the topology of the temperature fluctuations in the cosmic microwave background: An analysis of the NPIPE and FFP10 data releases

Autori: Pratyush Pranav
Pubblicato in: Astronomy & Astrophysics, Numero 659, 2022, Pagina/e A115, ISSN 0004-6361
Editore: Springer Verlag
DOI: 10.1051/0004-6361/202140291

A prediction for anisotropies in the nearby Hubble flow

Autori: Asta Heinesen, Hayley J. Macpherson
Pubblicato in: Journal of Cosmology and Astroparticle Physics, Numero 2022 / 03, 2022, Pagina/e 057, ISSN 1475-7516
Editore: Institute of Physics
DOI: 10.1088/1475-7516/2022/03/057

1 + 3 -Newton-Cartan system and Newton-Cartan cosmology

Autori: Quentin Vigneron
Pubblicato in: Physical Review D, Numero 103/6, 2021, Pagina/e 064064, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.103.064064

On General-Relativistic Lagrangian Perturbation Theory and Its Non-Perturbative Generalization

Autori: Thomas Buchert, Ismael Delgado Gaspar, Jan J. Ostrowski
Pubblicato in: Universe, Numero 8 / 11, 2022, Pagina/e 583, ISSN 2218-1997
Editore: MDPI
DOI: 10.3390/universe8110583

Persistent homology of the cosmic web – I. Hierarchical topology in ΛCDM cosmologies

Autori: Georg Wilding, Keimpe Nevenzeel, Rien van de Weygaert, Gert Vegter, Pratyush Pranav, Bernard J T Jones, Konstantinos Efstathiou, Job Feldbrugge
Pubblicato in: Monthly Notices of the Royal Astronomical Society, Numero 507/2, 2021, Pagina/e 2968-2990, ISSN 0035-8711
Editore: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stab2326

The quadrupole in the local Hubble parameter: first constraints using Type Ia supernova data and forecasts for future surveys

Autori: Suhail Dhawan, Antonin Borderies, Hayley J. Macpherson, Asta Heinesen
Pubblicato in: Monthly Notices of the Royal Astronomical Society, Numero 519, 2023, Pagina/e 4841-4845, ISSN 0035-8711
Editore: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stac3812

Beyond relativistic Lagrangian perturbation theory: An exact-solution controlled model for structure formation

Autori: Ismael Delgado Gaspar; Thomas Buchert; Jan J. Ostrowski
Pubblicato in: Physical Review D, Numero 107, 2023, Pagina/e 024018, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.107.024018

Solving the curvature and Hubble parameter inconsistencies through structure formation-induced curvature

Autori: Asta Heinesen, Thomas Buchert
Pubblicato in: Classical and Quantum Gravity, Numero 37/16, 2020, Pagina/e 164001, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/ab954b

Computational Topology for Biomedical Images and Data: Theory and Applications [Book Review]

Autori: Pratyush Pranav
Pubblicato in: IEEE Signal Processing Magazine, Numero 38/4, 2021, Pagina/e 130-131, ISSN 1053-5888
Editore: Institute of Electrical and Electronics Engineers
DOI: 10.1109/msp.2021.3075187

A comparison theorem for cosmological lightcones

Autori: Mauro Carfora, Francesca Familiari
Pubblicato in: Letters in Mathematical Physics, Numero 111/2, 2021, Pagina/e id 53, ISSN 0377-9017
Editore: Kluwer Academic Publishers
DOI: 10.1007/s11005-021-01393-2

The averaging problem on the past null cone in inhomogeneous dust cosmologies

Autori: Thomas Buchert, Henk van Elst, Asta Heinesen
Pubblicato in: General Relativity and Gravitation, Numero 55, 2023, Pagina/e 7, ISSN 0001-7701
Editore: Kluwer Academic Publishers
DOI: 10.1007/s10714-022-03051-x

Redshift drift cosmography for model-independent cosmological inference

Autori: Asta Heinesen
Pubblicato in: Physical Review D, Numero 104/12, 2021, Pagina/e 123527, ISSN 1550-2368
Editore: American Physical Society
DOI: 10.1103/physrevd.104.123527

Minkowski Functionals of SDSS-III BOSS: Hints of Possible Anisotropy in the Density Field?

Autori: Stephen Appleby, Changbom Park, Pratyush Pranav, Sungwook E. Hong, Ho Seong Hwang, Juhan Kim, Thomas Buchert
Pubblicato in: The Astrophysical Journal, Numero 928, 2022, Pagina/e 108, ISSN 1538-4357
Editore: Institute of Physics Publishing
DOI: 10.3847/1538-4357/ac562a

Is backreaction in cosmology a relativistic effect? On the need for an extension of Newton's theory to non-Euclidean topologies

Autori: Quentin Vigneron
Pubblicato in: Physical Review D, Numero 105/04, 2022, Pagina/e 043524, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.105.043524

Hydrodynamic interpretation of generic squeezed coherent states: A kinetic theory

Autori: Nezihe Uzun
Pubblicato in: Annals of Physics, Numero 442, 2022, Pagina/e 168900, ISSN 0003-4916
Editore: Academic Press
DOI: 10.1016/j.aop.2022.168900

Cauchy-compact flat spacetimes with extreme BTZ

Autori: Léo Brunswic
Pubblicato in: Geometriae Dedicata, Numero 214/1, 2021, Pagina/e 571-608, ISSN 0046-5755
Editore: Kluwer Academic Publishers
DOI: 10.1007/s10711-021-00629-8

Redshift drift in a universe with structure: Lemaître-Tolman-Bondi structures with arbitrary angle of entry of light

Autori: Sofie Marie Koksbang, Asta Heinesen
Pubblicato in: Physical Review D, Numero 106, 2022, Pagina/e 043501, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.106.043501

Lagrangian theory of structure formation in relativistic cosmology. VI. Comparison with Szekeres exact solutions

Autori: Ismael Delgado Gaspar, Thomas Buchert
Pubblicato in: Physical Review D, Numero 103/2, 2021, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.103.023513

Cosmological homogeneity scale estimates are dressed

Autori: Asta Heinesen
Pubblicato in: Journal of Cosmology and Astroparticle Physics, Numero 2020/10, 2020, Pagina/e 052-052, ISSN 1475-7516
Editore: Institute of Physics
DOI: 10.1088/1475-7516/2020/10/052

The variance of the CMB temperature gradient: a new signature of a multiply connected Universe

Autori: Ralf Aurich, Thomas Buchert, Martin J. France, Frank Steiner
Pubblicato in: Classical and Quantum Gravity, Numero 38/22, 2021, Pagina/e 225005, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/ac27f0

Is the observable Universe consistent with the cosmological principle?

Autori: Pavan Kumar Aluri, et al., Pratyush Pranav, et al.
Pubblicato in: Classical and Quantum Gravity, Numero 40 / 9, 2023, Pagina/e 094001, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/acbefc

Redshift drift as a model independent probe of dark energy

Autori: Asta Heinesen
Pubblicato in: Physical Review D, Numero 103/8, 2021, Pagina/e L081302, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.103.l081302

Multipole decomposition of the general luminosity distance Hubble law — a new framework for observational cosmology

Autori: Asta Heinesen
Pubblicato in: Journal of Cosmology and Astroparticle Physics, Numero 2021/05, 2021, Pagina/e 008, ISSN 1475-7516
Editore: Institute of Physics
DOI: 10.1088/1475-7516/2021/05/008

Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies

Autori: Elcio Abdalla, ..., Thomas Buchert, ..., Asta Heinesen, ... et al.
Pubblicato in: Journal of High Energy Astrophysics, Numero 34, 2022, Pagina/e 49-211, ISSN 2214-4048
Editore: Elsevier BV
DOI: 10.1016/j.jheap.2022.04.002

On Backreaction in Newtonian cosmology

Autori: Thomas Buchert
Pubblicato in: Monthly Notices of the Royal Astronomical Society: Letters, Numero 473/1, 2017, Pagina/e L46-L49, ISSN 1745-3933
Editore: Blackwell Publishing
DOI: 10.1093/mnrasl/slx160

Lagrangian theory of structure formation in relativistic cosmology. IV. Lagrangian approach to gravitational waves

Autori: Fosca Al Roumi, Thomas Buchert, Alexander Wiegand
Pubblicato in: Physical Review D, Numero 96/12, 2017, Pagina/e 123538, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/PhysRevD.96.123538

Lagrangian theory of structure formation in relativistic cosmology. V. Irrotational fluids

Autori: Yong-Zhuang Li, Pierre Mourier, Thomas Buchert, David L. Wiltshire
Pubblicato in: Physical Review D, Numero 98/4, 2018, Pagina/e 28, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/PhysRevD.98.043507

Cosmological backreaction and its dependence on spacetime foliation

Autori: Thomas Buchert, Pierre Mourier, Xavier Roy
Pubblicato in: Classical and Quantum Gravity, Numero 35/24, 2018, Pagina/e 24LT02, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/aaebce

Topology and geometry of Gaussian random fields I: on Betti numbers, Euler characteristic, and Minkowski functionals

Autori: Pratyush Pranav, Rien van de Weygaert, Gert Vegter, Bernard J T Jones, Robert J Adler, Job Feldbrugge, Changbom Park, Thomas Buchert, Michael Kerber
Pubblicato in: Monthly Notices of the Royal Astronomical Society, Numero 485/3, 2019, Pagina/e 4167-4208, ISSN 0035-8711
Editore: Blackwell Publishing Inc.
DOI: 10.1093/mnras/stz541

On the covariance of scalar averaging and backreaction in relativistic inhomogeneous cosmology

Autori: Asta Heinesen, Pierre Mourier, Thomas Buchert
Pubblicato in: Classical and Quantum Gravity, Numero 36/7, 2019, Pagina/e 075001, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/ab0618

Environment dependence of the growth of the most massive objects in the Universe

Autori: Krzysztof Bolejko, Jan J. Ostrowski
Pubblicato in: Physical Review D, Numero 99/12, 2019, Pagina/e 9, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/PhysRevD.99.124036

Unexpected topology of the temperature fluctuations in the cosmic microwave background

Autori: Pratyush Pranav, Robert J. Adler, Thomas Buchert, Herbert Edelsbrunner, Bernard J. T. Jones, Armin Schwartzman, Hubert Wagner, Rien van de Weygaert
Pubblicato in: Astronomy & Astrophysics, Numero 627, 2019, Pagina/e A163, ISSN 0004-6361
Editore: Springer Verlag
DOI: 10.1051/0004-6361/201834916

Dark matter from backreaction? Collapse models on galaxy cluster scales

Autori: Quentin Vigneron, Thomas Buchert
Pubblicato in: Classical and Quantum Gravity, Numero 36/17, 2019, Pagina/e 175006, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/ab32d1

Dynamical spatial curvature as a fit to Type Ia supernovae

Autori: Célia Desgrange, Asta Heinesen, Thomas Buchert
Pubblicato in: International Journal of Modern Physics D, Numero 28/11, 2019, Pagina/e 1950143, ISSN 0218-2718
Editore: World Scientific Publishing Co
DOI: 10.1142/s0218271819501438

Stochastic homology of Gaussian vs. non-Gaussian random fields: graphs towards Betti numbers and persistence diagrams

Autori: Job Feldbrugge, Matti van Engelen, Rien van de Weygaert, Pratyush Pranav, Gert Vegter
Pubblicato in: Journal of Cosmology and Astroparticle Physics, Numero 2019/09, 2019, Pagina/e 052-052, ISSN 1475-7516
Editore: Institute of Physics
DOI: 10.1088/1475-7516/2019/09/052

Editorial note to: On the Newtonian limit of Einstein’s theory of gravitation (by Jürgen Ehlers)

Autori: Thomas Buchert, Thomas Mädler
Pubblicato in: General Relativity and Gravitation, Numero 51/12, 2019, Pagina/e 162, ISSN 0001-7701
Editore: Kluwer Academic Publishers
DOI: 10.1007/s10714-019-2623-1

On average properties of inhomogeneous fluids in general relativity III: general fluid cosmologies

Autori: Thomas Buchert, Pierre Mourier, Xavier Roy
Pubblicato in: General Relativity and Gravitation, Numero 52/3, 2020, Pagina/e 27, ISSN 0001-7701
Editore: Kluwer Academic Publishers
DOI: 10.1007/s10714-020-02670-6

Channels for streaming instability in dusty discs

Autori: Etienne Jaupart, Guillaume Laibe
Pubblicato in: Monthly Notices of the Royal Astronomical Society, Numero 492/4, 2020, Pagina/e 4591-4598, ISSN 0035-8711
Editore: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa057

Reduced phase space optics for general relativity: symplectic ray bundle transfer

Autori: Nezihe Uzun
Pubblicato in: Classical and Quantum Gravity, Numero 37/4, 2020, Pagina/e 045002, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/ab60b5

1 + 3 formulation of Newton’s equations

Autori: Quentin Vigneron
Pubblicato in: Physical Review D, Numero 102/12, 2020, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.102.124005

Luminosity distance and anisotropic sky-sampling at low redshifts: A numerical relativity study

Autori: Hayley J. Macpherson, Asta Heinesen
Pubblicato in: Physical Review D, Numero 104/2, 2021, Pagina/e 023525, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.104.023525

Gauss–Bonnet–Chern approach to the averaged Universe

Autori: Léo Brunswic, Thomas Buchert
Pubblicato in: Classical and Quantum Gravity, Numero 37/21, 2020, Pagina/e 215022, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/abae45

The Hawking energy on the past lightcone in cosmology

Autori: Dennis Stock
Pubblicato in: Classical and Quantum Gravity, Numero 37/21, 2020, Pagina/e 215005, ISSN 0264-9381
Editore: Institute of Physics Publishing
DOI: 10.1088/1361-6382/aba182

Nonperturbative collapse models for collisionless self-gravitating flows

Autori: Niels Fardeau, Thomas Buchert, Fosca Al Roumi, Fereshteh Felegary
Pubblicato in: Physical Review D, Numero 108, 2023, Pagina/e 083502, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.108.083502

Reconciling a decelerating Universe with cosmological observations

Autori: Asta Heinesen
Pubblicato in: Physical Review D, Numero 107, 2023, Pagina/e L101301, ISSN 2470-0010
Editore: American Physical Society
DOI: 10.1103/physrevd.107.l101301

Einstein Constraints and Ricci Flow - A Geometrical Averaging of Initial Data Sets

Autori: Mauro Carfora, Annalisa Marzuoli
Pubblicato in: Mathematical Physics Studies, 2023, Pagina/e XII, 173, ISBN 978-981-19-8539-3
Editore: Springer Nature
DOI: 10.1007/978-981-19-8540-9

4MOST Consortium Survey 8: Cosmology Redshift Survey (CRS)

Autori: J. Richard, J.-P. Kneib, C. Blake, A. Raichoor, J. Comparat, T. Shanks, J. Sorce, M. Sahlén, C. Howlett, E. Tempel, R. McMahon, M. Bilicki, B. Roukema, J. Loveday, D. Pryer, T. Buchert, C. Zhao (for the CRS team)
Pubblicato in: The Messenger, Numero 175/3, 2019, Pagina/e 50-53
Editore: ESO
DOI: 10.18727/0722-6691/5127

A Few Numbers from the Turnaround Epoch of Collapse

Autori: J.J. Ostrowski
Pubblicato in: Acta Physica Polonica B Proceedings Supplement, Numero 13/2, 2020, Pagina/e 177, ISSN 1899-2358
Editore: Jagellonian University
DOI: 10.5506/aphyspolbsupp.13.177

Is Dark Energy Simulated by Structure Formation in the Universe ?

Autori: Thomas Buchert
Pubblicato in: Proceedings of 2nd World Summit: Exploring the Dark Side of the Universe — PoS(EDSU2018), Numero 335, 2018, Pagina/e 038
Editore: Sissa Medialab
DOI: 10.22323/1.335.0038

Inhomogeneous Relativistic Cosmology : nonperturbative models and spatial averaging of the Einstein equations

Autori: Mourier, Pierre
Pubblicato in: Cosmology and Extragalactic Astrophysics, Numero tel-02299373, 2019, Pagina/e 198 pages
Editore: HAL open archive

Influence of topology in inhomogeneous cosmology through non-Euclidean extensions of Newton’s theory and relativistic numerical schemes

Autori: Quentin Vigneron
Pubblicato in: Cosmology and Extragalactic Astrophysics, Numero tel-03481716, 2021, Pagina/e 188 pages
Editore: HAL open archive

Cosmic microwave background properties in a universe with simply or multiply connected topology

Autori: Martin France
Pubblicato in: Cosmology and Extragalactic Astrophysics, Numero tel-03908491, 2023, Pagina/e 144 pages
Editore: HAL open archive

Advances in Research on Theories of the Dark Universe - Inhomogeneity Effects in Relativistic Cosmology

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