News from the Dark 6

Europe/Paris
Auditorium Marcel Vivargent (LAPTh)

Auditorium Marcel Vivargent

LAPTh

9 Chemin de Bellevue, Annecy-le-Vieux F-74941 ANNECY -- FRANCE
Benoit Famaey (ObAS), Julien Lavalle (LUPM), Pierre Salati (Laboratoire d'Annecy-le-Vieux de Physique Théorique LAPTH)
Description

This mini-workshop is aimed at gathering a few experts from different fields (mostly theoretical cosmology, galactic dynamics, [astro]particle physics) to discuss current progress, issues, and prospects in the understanding of dark matter (DM). The focus is mostly on how different DM scenarios imprint galactic and subgalactic scales, and how these can in turn be used to discriminate among several classes of DM candidates. This is directly linked to the small-scale tensions the LCDM paradigm is currently facing, which could be related either to baryonic physics, specific dark matter properties, or both.

Participation is on invitation, and the philosophy may be summarized as: interactive, friendly, unveil the dust under the carpet(s), share knowledge or ideas,  trigger collaborative works. This is the sixth edition of this workshop series (previous editions: 2013, 2017, 2018, 2019, 2020).

The 2021 meeting will take place at the Laboratoire d'Annecy-le-Vieux de Physique Théorique (LAPTh). This edition will focus on astroparticle physics aspects, a strong local tradition, but will also review other topics related to dark matter as a more general problem, as traditionally done at NFTD workshops.

This meeting is partly supported by Université Savoie-Mont Blanc, by the CNRS-INSU National Programs PNHE and PNCG, and by the ANR under contract ANR-18-CE31-0006 (GaDaMa project).

Scientific organizers: Benoit Famaey, Julien Lavalle, Pierre Salati.

Local organizers: Francesca Calore, Pierre Salati, Martin Stref.

    • 10:30 10:50
      Welcome 20m
    • 10:50 11:00
    • 11:00 12:30
      Dark matter from high-energy astrophysics perspectives: Experimental aspects
    • 12:30 14:00
      Lunch break 1h 30m
    • 14:00 16:00
      Dark matter from high-energy astrophysics perspectives: Phenomenological aspects
    • 16:00 16:30
      Coffee break 30m
    • 16:30 18:00
      Dark matter and compact objects: (Primordial) black holes, their music, their impact as/on dark matter
      • 16:30
        Gravitational waves: review of LIGO/Virgo results, current interpretations, and prospects 30m
        Orateur: Tania Regimbau (LAPP)
      • 17:00
        Primordial black holes: a (self) critical review 30m
        Orateur: Sébastien Clesse (ULB)
      • 17:30
        The formation of dark matter minispikes around primordial black holes 30m
        Orateur: Martin Stref (LAPTh)
    • 09:00 10:00
      Dark and visible substructure: The Milky Way, its streams and dwarf satellites
      • 09:00
        Stellar streams as viewed by Gaia and consequences for dark matter 30m
        Orateur: Rodrigo Ibata (ObAS)
      • 09:30
        Status of Milky Way and dwarf spheroidals mass models, from spatial to phase-space information 30m
        Orateur: James Binney (U. Oxford)
    • 10:00 10:30
      Coffee break 30m
    • 10:30 12:00
      Dark and visible substructure: Phase-space distribution of dark matter
      • 10:30
        Prediction of phase-space ditribution of dark matter in galaxies: comparisons with cosmological simulations 30m
        Orateur: Mihael Petac (LUPM)
      • 11:00
        Dark matter in galaxies: observational insights 30m
        Orateur: Lorenzo Posti (ObAS)
      • 11:30
        General discussion 30m
    • 12:00 14:00
      Lunch break 2h
    • 14:00 16:00
      Dark and visible substructure: Dark matter subhalos
      • 14:00
        A Monte-Carlo code for simulating subhalos signals for indirect dark matter searches: CLUMPY 30m
        Orateur: Maurin David (LPSC)
      • 14:30
        Tidal stripping of subhalos: a numerical approach 30m
        Orateur: Raphaël Errani (ObAS)
      • 15:00
        Tidal stripping of subhalos: an analytical approach 30m
        Orateur: Simon Rozier (ObAS)
      • 15:30
        Discussion 30m
    • 16:00 16:30
      Coffee break 30m
    • 16:30 17:30
      Dark and visible substructure: Dark matter subhalos
      • 16:30
        An analytical model of subhalo population: mass function and stellar encounters 30m
        Orateur: Gaétan Facchinetti (LUPM)
      • 17:00
        Subhalo boost factors for indirect dark matter searches for velocity-dependent signals 30m
        Orateur: Martin Stref (LAPTh)
    • 20:00 22:30
      Dinner in town 2h 30m
    • 09:00 10:30
      Dark matter: broader perspectives
    • 10:30 11:00
      Coffee break 30m
    • 11:00 12:00
      Dark matter: broader perspectives
      • 11:00
        Cosmological tensions and dark matter 30m
        Orateur: Prof. Julien Lesgourgues
      • 11:30
        General discussion 30m
    • 12:00 13:30
      Lunch break 1h 30m
    • 13:30 13:50
      Summary and final address 20m