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Ateliers action Dark Energy 2021

24–25 juin 2021
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Fuseau horaire Europe/Paris

Contacts

Liste des Contributions

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  1. 17. Aspects non-linéaires dans le galaxy clustering pour les modèles de gravité modifiée
    Filippo Vernizzi (IPhT - CEA Saclay)
    24/06/2021 14:00
  2. 22. Modeles semi-analytiques pour le spectre de puissance non-lineaire
    Patrick Valageas (CEA Saclay)
    24/06/2021 14:20
  3. 18. discussion
    24/06/2021 14:40
  4. 19. Effet des baryons & modification de la gravité
    Yohan Dubois (IAP Paris)
    24/06/2021 15:10
  5. 20. discussion
    24/06/2021 15:40
  6. 27. Imprints of Modified Gravity Scenarios on the Inner Structure of Massive Dark Matter Halos
    Dr Pier-Stefano Corasaniti (CNRS & Observatoire de Paris)
    24/06/2021 16:30
  7. 23. Internal dark matter structure of the most massive galaxy clusters since redshift 1
    Dr Amandine Le Brun (PSL & Observatoire de Paris)
    24/06/2021 16:50

    The evolution of the dark matter profiles of high-mass galaxy clusters from z~1 to the present day remains poorly constrained and is a powerful test of the LambdaCDM model. Such a test requires systematic confrontations of observations of a representative sample of the Universe's most massive clusters, preferably in several redshift bins, with tailor-made numerical simulations. To date, there...

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  8. 29. Can modified gravity (partly) emulate dark matter?
    Benoit Famaey (CNRS Observatoire astronomique de Strasbourg)
    24/06/2021 17:10
  9. 21. discussion
    24/06/2021 17:30
  10. 14. Potential role of non-standard neutrino physics on structure formation
    Prof. Julien Lesgourgues (Aachen )
    25/06/2021 14:00
  11. 13. discussion
    25/06/2021 14:30
  12. 12. The cosmological imprint of massive neutrinos in dark matter simulations
    Julien Bel (CPT Marseille)
    25/06/2021 15:00
  13. 15. discussion
    25/06/2021 15:30
  14. 25. Constraining neutrino mass using three-point mean relative velocity statistics
    Joseph Kuruvilla (IAS, Universite Paris-Saclay)
    25/06/2021 16:20
    Présentation
    Neutrinos et LSS

    Velocity field provides a new avenue to constrain cosmological information, and one of the commonly used statistics is the mean radial pairwise velocity. In this talk, we consider the three-point mean relative velocity (i.e. the mean relative velocities between pairs in a triplet), and show that it is a novel probe of neutrino mass estimation. We explore the full cosmological information...

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  15. 26. Constraining the total neutrino mass with the power spectrum
    Sylvain Gouyou Beauchamps (CPPM)
    25/06/2021 16:50
    Présentation
    Neutrinos et LSS

    While neutrino oscillation experiments achieved high precision measurement on the neutrino squared mass differences, the absolute scale and hierarchy are still unknown. On the cosmology side, massive neutrino's transition from a relativistic to a non-relativistic specie leaves an imprint on the Cosmic Microwave Background (CMB) temperature power spectrum, allowing for tighter constraint on the...

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  16. 16. discussion
    25/06/2021 17:20
  17. 28. Can modified gravity (partly) emulate dark matter?
    Benoit Famaey (CNRS Observatoire astronomique de Strasbourg)
  18. 24. pause