Explore the words cloud of the CosTesGrav project. It provides you a very rough idea of what is the project "CosTesGrav" about.
The following table provides information about the project.
Coordinator |
UNIVERSITY OF PORTSMOUTH HIGHER EDUCATION CORPORATION
Organization address contact info |
Coordinator Country | United Kingdom [UK] |
Total cost | 1˙701˙132 € |
EC max contribution | 1˙701˙132 € (100%) |
Programme |
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC)) |
Code Call | ERC-2014-CoG |
Funding Scheme | ERC-COG |
Starting year | 2015 |
Duration (year-month-day) | from 2015-09-01 to 2021-07-31 |
Take a look of project's partnership.
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1 | UNIVERSITY OF PORTSMOUTH HIGHER EDUCATION CORPORATION | UK (PORTSMOUTH) | coordinator | 1˙701˙132.00 |
Einstein’s theory of General Relativity (GR) is tested accurately within the local universe i.e., the solar system, but this leaves open the possibility that it is not a good description at the largest scales in the Universe. The standard model of cosmology assumes GR as a theory to describe gravity on all scales. In 1998, astronomers made a surprising discovery that the expansion of the Universe is accelerating, not slowing down. This late-time acceleration of the Universe has become the most challenging problem in theoretical physics. Within the framework of GR, the acceleration would originate from an unknown “dark energy.” Alternatively, it could be that there is no dark energy and GR itself is in error on cosmological scales. The standard model of cosmology is based on a huge extrapolation of our limited knowledge of gravity. This discovery of the late time acceleration of the Universe may require us to revise the theory of gravity and the standard model of cosmology based on GR.
The main objective of my project is to develop cosmological tests of gravity and seek solutions to the origin of the observed accelerated expansion of the Universe by challenging conventional GR. Upcoming surveys will make cosmological tests of gravity a reality in the next five years. There are remaining issues in developing theoretical frameworks for probing gravitational physics on cosmological scales. We construct modified gravity theories as an alternative to dark energy and analyse “screening mechanisms” to restore GR on scales where it is well tested. We then develop better theoretical frameworks to perform cosmological tests of gravity that include non-linear scales by exploiting our theoretical knowledge of the models and our state-of-the-art simulations.
This grant will exploit and develop the world-leading position of the group initiated by Kazuya Koyama at the University of Portsmouth funded by the ERC starting grant (2008-2013).
year | authors and title | journal | last update |
---|---|---|---|
2019 |
Hans A. Winther, Santiago Casas, Marco Baldi, Kazuya Koyama, Baojiu Li, Lucas Lombriser, Gong-Bo Zhao Emulators for the nonlinear matter power spectrum beyond Λ CDM published pages: , ISSN: 2470-0010, DOI: 10.1103/physrevd.100.123540 |
Physical Review D 100/12 | 2020-02-20 |
2018 |
Kazuya Koyama Gravity beyond general relativity published pages: 1848001, ISSN: 0218-2718, DOI: 10.1142/s0218271818480012 |
International Journal of Modern Physics D 27/15 | 2020-02-20 |
2020 |
Chiaki Hikage, Kazuya Koyama, Ryuichi Takahashi Perturbation theory for the redshift-space matter power spectra after reconstruction published pages: , ISSN: 2470-0010, DOI: 10.1103/physrevd.101.043510 |
Physical Review D 101/4 | 2020-02-20 |
2020 |
Hiromu Ogawa, Tsutomu Kobayashi, Kazuya Koyama Relativistic stars in a cubic Galileon universe published pages: , ISSN: 2470-0010, DOI: 10.1103/physrevd.101.024026 |
Physical Review D 101/2 | 2020-02-20 |
2020 |
Alejandro Aviles, Kazuya Koyama, Jorge L. Cervantes-Cota, Hans A. Winther, Baojiu Li Marked correlation functions in perturbation theory published pages: 006-006, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2020/01/006 |
Journal of Cosmology and Astroparticle Physics 2020/01 | 2020-02-20 |
2019 |
A. Emir Gümrükçüoğlu, Ryo Namba Role of matter in gravitation: Going beyond the Einstein-Maxwell theory published pages: , ISSN: 2470-0010, DOI: 10.1103/physrevd.100.124064 |
Physical Review D 100/12 | 2020-02-20 |
2019 |
Benjamin Bose, Kazuya Koyama, Hans A. Winther Assessing non-linear models for galaxy clustering III: theoretical accuracy for stage IV surveys published pages: 021-021, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/10/021 |
Journal of Cosmology and Astroparticle Physics 2019/10 | 2020-02-20 |
2019 |
Obinna Umeh, Kazuya Koyama The galaxy bias at second order in general relativity with non-Gaussian initial conditions published pages: 048-048, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/12/048 |
Journal of Cosmology and Astroparticle Physics 2019/12 | 2020-02-20 |
2017 |
Marco Crisostomi, Remko Klein, Diederik Roest Higher derivative field theories: degeneracy conditions and classes published pages: 124, ISSN: 1029-8479, DOI: 10.1007/JHEP06(2017)124 |
Journal of High Energy Physics 2017/6 | 2019-10-03 |
2019 |
Andrius Tamosiunas, David Bacon, Kazuya Koyama, Robert C. Nichol Testing emergent gravity on galaxy cluster scales published pages: 053-053, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/05/053 |
Journal of Cosmology and Astroparticle Physics 2019/05 | 2019-10-03 |
2019 |
Michael Kenna-Allison, A. Emir Gümrükçüoǧlu, Kazuya Koyama Viability of bigravity cosmology published pages: 104032, ISSN: 2470-0010, DOI: 10.1103/physrevd.99.104032 |
Physical Review D 99/10 | 2019-10-03 |
2016 |
Matthew Hull, Kazuya Koyama, Gianmassimo Tasinato Covariantized vector Galileons published pages: 64012, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.93.064012 |
Physical Review D 93/6 | 2019-10-03 |
2016 |
Marco Crisostomi, Kazuya Koyama, Gianmassimo Tasinato Extended scalar-tensor theories of gravity published pages: 044-044, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/04/044 |
Journal of Cosmology and Astroparticle Physics 2016/04 | 2019-10-03 |
2017 |
Christian Fidler, Thomas Tram, Cornelius Rampf, Robert Crittenden, Kazuya Koyama, David Wands Relativistic initial conditions for N-body simulations published pages: 043-043, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/06/043 |
Journal of Cosmology and Astroparticle Physics 2017/06 | 2019-10-03 |
2017 |
Benjamin Bose, Kazuya Koyama, Wojciech A. Hellwing, Gong-Bo Zhao, Hans A. Winther Theoretical accuracy in cosmological growth estimation published pages: 23519, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.96.023519 |
Physical Review D 96/2 | 2019-10-03 |
2016 |
Jeremy Sakstein, Harry Wilcox, David Bacon, Kazuya Koyama, Robert C. Nichol Testing gravity using galaxy clusters: new constraints on beyond Horndeski theories published pages: 019-019, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/07/019 |
Journal of Cosmology and Astroparticle Physics 2016/07 | 2019-10-03 |
2017 |
Benjamin Bose, Kazuya Koyama A perturbative approach to the redshift space correlation function: beyond the Standard Model published pages: 029-029, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/08/029 |
Journal of Cosmology and Astroparticle Physics 2017/08 | 2019-10-03 |
2015 |
Jeremy Sakstein, Kazuya Koyama Testing the Vainshtein mechanism using stars and galaxies published pages: 1544021, ISSN: 0218-2718, DOI: 10.1142/S0218271815440216 |
International Journal of Modern Physics D 24/12 | 2019-10-03 |
2016 |
Benjamin Bose, Kazuya Koyama A perturbative approach to the redshift space power spectrum: beyond the Standard Model published pages: 032-032, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/08/032 |
Journal of Cosmology and Astroparticle Physics 2016/08 | 2019-10-03 |
2017 |
Jeremy Sakstein, Eugeny Babichev, Kazuya Koyama, David Langlois, Ryo Saito Towards strong field tests of beyond Horndeski gravity theories published pages: 64013, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.95.064013 |
Physical Review D 95/6 | 2019-10-03 |
2016 |
Marco Crisostomi, Matthew Hull, Kazuya Koyama, Gianmassimo Tasinato Horndeski: beyond, or not beyond? published pages: 038-038, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/03/038 |
Journal of Cosmology and Astroparticle Physics 2016/03 | 2019-10-03 |
2018 |
Marco Crisostomi, Kazuya Koyama Self-accelerating universe in scalar-tensor theories after GW170817 published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.084004 |
Physical Review D 97/8 | 2019-10-03 |
2016 |
Gong-Bo Zhao, Yuting Wang, Ashley J. Ross, Sarah Shandera, Will J. Percival, Kyle S. Dawson, Jean-Paul Kneib, Adam D. Myers, Joel R. Brownstein, Johan Comparat, Timothée Delubac, Pengyuan Gao, Alireza Hojjati, Kazuya Koyama, Cameron K. McBride, Andrés Meza, Jeffrey A. Newman, Nathalie Palanque-Delabrouille, Levon Pogosian, Francisco Prada, Graziano Rossi, Donald P. Schneider, Hee-Jong Seo, Charling Tao, Dandan Wang, Christophe Yèche, Hanyu Zhang, Yuecheng Zhang, Xu Zhou, Fangzhou Zhu, Hu Zou The extended Baryon Oscillation Spectroscopic Survey: a cosmological forecast published pages: 2377-2390, ISSN: 0035-8711, DOI: 10.1093/mnras/stw135 |
Monthly Notices of the Royal Astronomical Society 457/3 | 2019-10-03 |
2018 |
Benjamin Bose, Kazuya Koyama, Matthew Lewandowski, Filippo Vernizzi, Hans A. Winther Towards precision constraints on gravity with the Effective Field Theory of Large-Scale Structure published pages: 063-063, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/04/063 |
Journal of Cosmology and Astroparticle Physics 2018/04 | 2019-10-03 |
2017 |
Bridget Falck, Kazuya Koyama, Gong-Bo Zhao, Marius Cautun Using voids to unscreen modified gravity published pages: 3262-3272, ISSN: 0035-8711, DOI: 10.1093/mnras/stx3288 |
Monthly Notices of the Royal Astronomical Society 475/3 | 2019-10-03 |
2018 |
A. Emir Gümrükçüoğlu, Mehdi Saravani, Thomas P. Sotiriou Hořava gravity after GW170817 published pages: 24032, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.024032 |
Physical Review D 97/2 | 2019-10-03 |
2017 |
Wojciech A. Hellwing, Kazuya Koyama, Benjamin Bose, Gong-Bo Zhao Revealing modified gravity signals in matter and halo hierarchical clustering published pages: 23515, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.96.023515 |
Physical Review D 96/2 | 2019-10-03 |
2017 |
Gong-Bo Zhao, Marco Raveri, Levon Pogosian, Yuting Wang, Robert G. Crittenden, Will J. Handley, Will J. Percival, Florian Beutler, Jonathan Brinkmann, Chia-Hsun Chuang, Antonio J. Cuesta, Daniel J. Eisenstein, Francisco-Shu Kitaura, Kazuya Koyama, Benjamin L’Huillier, Robert C. Nichol, Matthew M. Pieri, Sergio Rodriguez-Torres, Ashley J. Ross, Graziano Rossi, Ariel G. Sánchez, Arman Shafieloo, Jeremy L. Tinker, Rita Tojeiro, Jose A. Vazquez, Hanyu Zhang Dynamical dark energy in light of the latest observations published pages: 627-632, ISSN: 2397-3366, DOI: 10.1038/s41550-017-0216-z |
Nature Astronomy 1/9 | 2019-10-03 |
2016 |
Thomas Tram, Christian Fidler, Robert Crittenden, Kazuya Koyama, Guido W. Pettinari, David Wands The intrinsic matter bispectrum in ΛCDM published pages: 058-058, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/05/058 |
Journal of Cosmology and Astroparticle Physics 2016/05 | 2019-10-03 |
2018 |
Kazuya Koyama, Obinna Umeh, Roy Maartens, Daniele Bertacca The observed galaxy bispectrum from single-field inflation in the squeezed limit published pages: 050-050, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/07/050 |
Journal of Cosmology and Astroparticle Physics 2018/07 | 2019-10-03 |
2017 |
Hans A. Winther, Kazuya Koyama, Marc Manera, Bill S. Wright, Gong-Bo Zhao COLA with scale-dependent growth: applications to screened modified gravity models published pages: 006-006, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/08/006 |
Journal of Cosmology and Astroparticle Physics 2017/08 | 2019-10-03 |
2016 |
J. Ben Achour, M. Crisostomi, K. Koyama, D. Langlois, K. Noui, G. Tasinato Degenerate higher order scalar-tensor theories beyond Horndeski up to cubic order published pages: 100, ISSN: 1029-8479, DOI: 10.1007/JHEP12(2016)100 |
Journal of High Energy Physics 2016/12 | 2019-10-03 |
2016 |
A. Emir Gümrükçüoğlu, Kazuya Koyama, and Shinji Mukohyama Role of matter in extended quasidilaton massive gravity published pages: 123510, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.94.123510 |
Physical Review D 94 | 2019-10-03 |
2018 |
Simone Peirone, Kazuya Koyama, Levon Pogosian, Marco Raveri, Alessandra Silvestri Large-scale structure phenomenology of viable Horndeski theories published pages: 43519, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.043519 |
Physical Review D 97/4 | 2019-10-03 |
2018 |
Thomas E. Collett, Lindsay J. Oldham, Russell J. Smith, Matthew W. Auger, Kyle B. Westfall, David Bacon, Robert C. Nichol, Karen L. Masters, Kazuya Koyama, Remco van den Bosch A precise extragalactic test of General Relativity published pages: 1342-1346, ISSN: 0036-8075, DOI: 10.1126/science.aao2469 |
Science 360/6395 | 2019-10-03 |
2016 |
Robert J. Hardwick, Vincent Vennin, Kazuya Koyama, David Wands Constraining Curvatonic Reheating published pages: 42, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/08/042 |
Journal of Cosmology and Astroparticle Physics 2016/08 | 2019-10-03 |
2017 |
Chiaki Hikage, Kazuya Koyama, Alan Heavens Perturbation theory for BAO reconstructed fields: One-loop results in the real-space matter density field published pages: 43513, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.96.043513 |
Physical Review D 96/4 | 2019-10-03 |
2016 |
Christian Fidler, Thomas Tram, Cornelius Rampf, Robert Crittenden, Kazuya Koyama, David Wands Relativistic interpretation of Newtonian simulations for cosmic structure formation published pages: 031-031, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2016/09/031 |
Journal of Cosmology and Astroparticle Physics 2016/09 | 2019-10-03 |
2016 |
Harry Wilcox, Robert C. Nichol, Gong-Bo Zhao, David Bacon, Kazuya Koyama, A. Kathy Romer Simulation tests of galaxy cluster constraints on chameleon gravity published pages: 715-725, ISSN: 0035-8711, DOI: 10.1093/mnras/stw1617 |
Monthly Notices of the Royal Astronomical Society 462/1 | 2019-10-03 |
2018 |
M. Crisostomi, K. Noui, C. Charmousis, D. Langlois Beyond Lovelock gravity: Higher derivative metric theories published pages: 44034, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.044034 |
Physical Review D 97/4 | 2019-10-03 |
2017 |
Christian Fidler, Thomas Tram, Cornelius Rampf, Robert Crittenden, Kazuya Koyama, David Wands General relativistic weak-field limit and Newtonian N-body simulations published pages: 022-022, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/12/022 |
Journal of Cosmology and Astroparticle Physics 2017/12 | 2019-10-03 |
2017 |
Jeremy Sakstein, Michael Kenna-Allison, Kazuya Koyama Stellar pulsations in beyond Horndeski gravity theories published pages: 007-007, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/03/007 |
Journal of Cosmology and Astroparticle Physics 2017/03 | 2019-10-03 |
2016 |
Wojciech A. Hellwing, Matthieu Schaller, Carlos S. Frenk, Tom Theuns, Joop Schaye, Richard G. Bower, Robert A. Crain The effect of baryons on redshift space distortions and cosmic density and velocity fields in the EAGLE simulation published pages: L11-L15, ISSN: 1745-3933, DOI: 10.1093/mnrasl/slw081 |
Monthly Notices of the Royal Astronomical Society: Letters 461/1 | 2019-10-03 |
2017 |
Benjamin L?Huillier, Hans A. Winther, David F. Mota, Changbom Park, Juhan Kim Dark matter haloes in modified gravity and dark energy: interaction rate, small- and large-scale alignment published pages: 3174-3183, ISSN: 0035-8711, DOI: 10.1093/mnras/stx700 |
Monthly Notices of the Royal Astronomical Society 468/3 | 2019-10-03 |
2017 |
Sownak Bose, Baojiu Li, Alexandre Barreira, Jian-hua He, Wojciech A. Hellwing, Kazuya Koyama, Claudio Llinares and Gong-Bo Zhao Speeding up N-body simulations of modified gravity: chameleon screening models published pages: 50, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2017/02/050 |
Journal of Cosmology and Astroparticle Physics 2 | 2019-10-03 |
2016 |
Alejo Stark, Christopher J. Miller, Nicholas Kern, Daniel Gifford, Gong-Bo Zhao, Baojiu Li, Kazuya Koyama, Robert C. Nichol Probing theories of gravity with phase space-inferred potentials of galaxy clusters published pages: 84036, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.93.084036 |
Physical Review D 93/8 | 2019-10-03 |
2017 |
Wojciech A. Hellwing, Adi Nusser, Martin Feix, Maciej Bilicki Not a Copernican observer: biased peculiar velocity statistics in the local Universe published pages: stx213, ISSN: 0035-8711, DOI: 10.1093/mnras/stx213 |
Monthly Notices of the Royal Astronomical Society | 2019-10-03 |
2016 |
Kazuya Koyama Cosmological Tests of Modified Gravity published pages: 4, ISSN: 0034-4885, DOI: 10.1088/0034-4885/79/4/046902 |
Reports on Progress in Physics 79 | 2019-10-03 |
2017 |
Sownak Bose
Wojciech A. Hellwing
Carlos S. Frenk
Adrian Jenkins
Mark R. Lovell
John C. Helly
Baojiu Li
Violeta Gonzalez-Perez
Liang Gao Substructure and galaxy formation in the Copernicus Complexio warm dark matter simulations published pages: 4520, ISSN: 0035-8711, DOI: 10.1093/mnras/stw2686 |
Monthly Notices of the Royal Astronomical Society 464 | 2019-10-03 |
2018 |
Marco Crisostomi, Kazuya Koyama Vainshtein mechanism after GW170817 published pages: 21301, ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.021301 |
Physical Review D 97/2 | 2019-10-03 |
2016 |
Ying-li Zhang, Kazuya Koyama, Misao Sasaki, Gong-Bo Zhao Acausality in nonlocal gravity theory published pages: 39, ISSN: 1029-8479, DOI: 10.1007/JHEP03(2016)039 |
Journal of High Energy Physics 2016/3 | 2019-10-03 |
2017 |
Pablo Arnalte-Mur, Wojciech A. Hellwing, Peder Norberg Real- and redshift-space halo clustering in f ( R ) cosmologies published pages: stx196, ISSN: 0035-8711, DOI: 10.1093/mnras/stx196 |
Monthly Notices of the Royal Astronomical Society | 2019-10-03 |
2018 |
Emanuela Dimastrogiovanni, Matteo Fasiello, Robert J. Hardwick, Hooshyar Assadullahi, Kazuya Koyama, David Wands Non-Gaussianity from axion-gauge fields interactions during inflation published pages: 029-029, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2018/11/029 |
Journal of Cosmology and Astroparticle Physics 2018/11 | 2019-10-03 |
2019 |
Juan Espejo, Simone Peirone, Marco Raveri, Kazuya Koyama, Levon Pogosian, Alessandra Silvestri Phenomenology of large scale structure in scalar-tensor theories: Joint prior covariance of w DE , Σ , and μ in Horndeski theories published pages: 23512, ISSN: 2470-0010, DOI: 10.1103/physrevd.99.023512 |
Physical Review D 99/2 | 2019-10-03 |
2019 |
A. Emir Gümrükçüoğlu, Kazuya Koyama Generalizing the matter coupling in massive gravity: A search for new interactions published pages: 84004, ISSN: 2470-0010, DOI: 10.1103/physrevd.99.084004 |
Physical Review D 99/8 | 2019-10-03 |
2019 |
Christian Fidler, Alexander Kleinjohann, Thomas Tram, Cornelius Rampf, Kazuya Koyama A new approach to cosmological structure formation with massive neutrinos published pages: 025-025, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/01/025 |
Journal of Cosmology and Astroparticle Physics 2019/01 | 2019-10-03 |
2019 |
M. Crisostomi, K. Koyama, D. Langlois, K. Noui, D.A. Steer Cosmological evolution in DHOST theories published pages: 030-030, ISSN: 1475-7516, DOI: 10.1088/1475-7516/2019/01/030 |
Journal of Cosmology and Astroparticle Physics 2019/01 | 2019-10-03 |
2019 |
Noemi Frusciante, Ryotaro Kase, Kazuya Koyama, Shinji Tsujikawa, Daniele Vernieri Tracker and scaling solutions in DHOST theories published pages: 167-175, ISSN: 0370-2693, DOI: 10.1016/j.physletb.2019.01.009 |
Physics Letters B 790 | 2019-10-03 |
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