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Cosmology

Group “Fundamental Interactions”

The Cosmology Team is comprised of researchers having an expertise in Cosmology, General Relativity, Quantum Field Theory and Particle Physics who collaborate and share contracts with several national and international groups of theoreticians, cosmologists, astronomers, astrophysicists and particle physicists.

Context of our researches. Flooded for over a decade with a massive quantity of high quality data, cosmology has finally become a fertile domain of research, the ideal ground where predictions from fundamental physics, particle physics and general relativity can be tested and falsified. This abundance of information has recently led to the discovery of phenomena and physical signals that were completely unexpected, such as the accelerated expansion of the universe, as well as phenomena that were expected since long, but undetected so far, such as gravitational waves.

The core of our activities is oriented along three main research axes:

  • Understanding the physics of the large scale structure of the universe by studying how the structures grow in different regimes using statistical tools. We want to gauge the contribution of the different forms of matter (standard and dark) and we aim at extracting the values of fundamental observables of the standard model of cosmology.
  • Unveiling the nature of dark energy by studying the rich phenomenology of the acceleration of the universe. The goal is to refine our knowledge of the dark sector of the universe either empirically, by exploring whether the standard description of gravity, the general theory of relativity, fails on large (infrared) cosmic scales, either theoretically, by exploring which non-standard model of gravity might generalize the current paradigm.
  • Assessing the consistency of the physical foundations of the model of cosmology by challenging fundamental assumptions adopted in cosmological inferences, in order to secure the conceptual basis of the paradigm used in interpreting cosmological observations.

Directory of Members

Bel Julien University faculty
+33.4.91.26.95.05 Email
Chbib Dyaa PhD candidate
Email
KUNTZ Adrien PhD candidate
Email
Marinoni Christian University faculty
Chef de l’équipe « Cosmologie »
+33.4.91.26.95.35 Email
Pèrenon Louis PhD candidate
Email
Piazza Federico University faculty
+33.4.91.26.95.04 Email
Schücker Thomas University faculty
Chef du Groupe « Interactions fondamentales »
+33.4.91.26.95.61 Email
Taxil Pierre University faculty
+33.4.91.26.95.48 Email
Virey Jean-Marc University faculty
+33.4.91.26.95.48 Email

List of Publications

44 results
Journal article
C. Duval, T. Schücker
Gravitational birefringence of light in Robertson-Walker cosmologies
Physical Review D, American Physical Society, 2017, 96 (4),
Journal article
Jose Beltrán Jiménez, Ruth Lazkoz, Diego Sáez-Gómez, Vincenzo Salzano
Observational constraints on cosmological future singularities
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2016, 76 (11), pp.631.
Conference paper
Hermano Velten, Jose Jiménez, Federico Piazza
Limits on the anomalous speed of gravitational waves from binary pulsars
7th International Workshop on Astronomy and Relativistic Astrophysics, Oct 2016, Gramado, Brazil. Int.J.Mod.Phys.Conf.Ser., 45, pp.1760016, 2017,
Journal article
L. A. M. Tasca, R. Tojeiro, D. Vergani, A. Zanichelli, J. Bel, J. Coupon, G. De Lucia, O. Ilbert, H. J. Mccracken, L. Moscardini, V. Scottez, Y. Mellier, B. R. Granett, T. Moutard, M. Kilbinger, M. Scodeggio, B. Garilli, M. Bolzonella, S. Torre, L. Guzzo, U. Abbas, C. Adami, S. Arnouts, D. Bottini, E. Branchini, A. Cappi, O. Cucciati, I. Davidzon, A. Fritz, P. Franzetti, A. Iovino, J. Krywult, V. Le Brun, O. Le Fevre, D. Maccagni, K. Malek, F. Marulli, M. Polletta, A. Pollo
Clustering-based redshift estimation: application to VIPERS/CFHTLS
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 462 (2), pp.1683--1696.
Journal article
Isaac Tutusaus, Brahim Lamine, Alain Blanchard, Arnaud Dupays, Yves Zolnierowski, Johann Cohen-Tanugi, Anne Ealet, Stéphanie Escoffier, Olivier Le Fèvre, Stéphane Ilić, Alice Pisani, Stéphane Plaszczynski, Ziad Sakr, Valentina Salvatelli, Thomas Schucker, André Tilquin, Jean-Marc Virey
Power law cosmology model comparison with CMB scale information
Physical Review D, American Physical Society, 2016, 94, pp.103511.
Journal article
Valentina Salvatelli, Federico Piazza, Christian Marinoni
Constraints on modified gravity from Planck 2015: when the health of your theory makes the difference
Journal of Cosmology and Astroparticle Physics, Institute of Physics (IOP), 2016, 2016 (09), pp.027.
Journal article
Davide Bianchi, Will Percival, Julien Bel
Improving the modelling of redshift-space distortions - II. A pairwise velocity model covering large and small scales
Monthly Notices of the Royal Astronomical Society, Oxford University Press (OUP): Policy P - Oxford Open Option A, 2016, 463 (4), pp.3783-3798.
Journal article
Philip Bull, Yashar Akrami, Julian Adamek, Tessa Baker, Emilio Bellini, Jose Beltrán Jiménez, Eloisa Bentivegna, Stefano Camera, Sébastien Clesse, Jonathan H. Davis, Enea Di Dio, Jonas Enander, Fabio Finelli, Alan Heavens, Lavinia Heisenberg, Bin Hu, Claudio Llinares, Roy Maartens, Edvard Mörtsell, Seshadri Nadathur, Johannes Noller, Roman Pasechnik, Marcel S. Pawlowski, Thiago S. Pereira, Miguel Quartin, Angelo Ricciardone, Signe Riemer-Sørensen, Massimiliano Rinaldi, Jeremy Sakstein, Ippocratis D. Saltas, Vincenzo Salzano, Ignacy Sawicki, Adam R. Solomon, Douglas Spolyar, Glenn D. Starkman, Danièle Steer, Ismael Tereno, Licia Verde, Francisco Villaescusa-Navarro, Mikael Von Strauss, Hans A. Winther
Beyond $\Lambda$CDM: Problems, solutions, and the road ahead
Physics of the Dark Universe, Elsevier, 2016, 12, pp.56-99.
Journal article
Jose Beltrán Jiménez, Lavinia Heisenberg
Derivative self-interactions for a massive vector field
Physics Letters B, Elsevier, 2016, 757 (405–411),
Journal article
Jose Beltrán Jiménez, Tomi S. Koivisto
Spacetimes with vector distortion: Inflation from generalised Weyl geometry
Physics Letters B, Elsevier, 2016, 756, pp.400-404.
44 results

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