News from the Dark - Episode 3: Gaia's lights, and the good, the bad, and the ugly of dark matter scenarios

Europe/Paris
Salle des Actes (Montpellier)

Salle des Actes

Montpellier

Université de Montpellier Place Eugène Bataillon
Julien Lavalle (Lab. Univers et Particules de Montpellier (LUPM))
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. The focus is mostly on dark matter on galactic and subgalactic scales, namely the scales critical to discriminate among several classes of DM candidates (in terms of their structure formation properties), and also critical in the potential tensions between the cold dark matter paradigm and current observations.

The number of (invited) participants will be limited to ~20-30, and the philosophy may be summarized as: collaborative, friendly, unveil the dust under the carpet(s), share knowledge, get new ideas. This is the third edition of this workshop series (previous editions: 2013, 2017).

The meeting will take place at the campus of the Faculty of Sciences of the University of Montpellier, in the Salle des Actes (build. n°7). We will have lunch at the University restaurant on the campus ("restaurant des personnels" on the map).

The main entrance of the Faculty is located Rue du Truel (no longer Place Eugène Bataillon), which you can reach by tram from the city center (tram line 1, the blue one, stop "Saint Eloi" or the next one, "Universités des Sciences et des Lettres") .

From downtown (where the railway station, or Place de la Comédie, are located), take this tram line (1, with the white swallows) toward "Mosson". To go back downtown, take the same line toward "Odysseum".
NB: you will have to purchase your tickets before boarding the tram (ticket machines at each stop).

This meeting is funded by the CNRS-IN2P3 Theory Project "Galactic Dark Matter" (PI J. Lavalle), and by the CNRS National Programs PNHE and PNCG.

Scientific organizers: B. Famaey, J. Lavalle.

Local organizers: T. Lacroix, J. Lavalle, M. Stref + A. Chenouf.

Participants will include:

Oscar Agertz (Lund), Quentin Agobert (Strasbourg), Eric Armengaud (CEA-Saclay), James Binney (U. Oxford), James Bullock (UC Irvine), Mathieu Boudaud (LPTHE), Sacha Davidson (LUPM), Raphael Errani (Edinburgh), Benoit Famaey (Strasbourg), Jean-Baptiste Fouvry (IAS), Karsten Jedamzik (LUPM), David Katz (Obs. Paris), Florian Kuhnel (Stockholm), Thomas Lacroix (LUPM), Julien Lavalle (LUPM), David J.E. Marsh (Göttingen), Giacomo Monari (Potsdam), Emmanuel Nezri (LAM), Arturo Nunez (LAM), Go Ogiya (Nice), Christophe Pichon (IAP), Florent Renaud (Lund), Simon Rozier (IAP), Pierre Salati (LAPTh), Aurel Schneider (ETH Zurich), Martin Stref (LUPM), Hervé Wozniak (LUPM), and several MSc students.

    • 09:50 10:25
      Welcome coffee 35m
    • 10:25 10:45
      Introduction 20m
      Orateur: Dr Julien Lavalle
    • 10:45 11:45
      Gaia's Second Data Release (DR2) 1h
      Orateur: Dr David Katz
    • 11:45 12:15
      Discussion 30m
    • 12:15 14:00
      Lunch + free 1h 45m
    • 14:00 15:00
      Making theoretical sense of Gaia's DR2 1h
      Orateur: Prof. James Binney
    • 15:00 15:15
      Discussion 15m
    • 15:15 16:15
      Unveiling the local properties of the dark halo with Gaia 1h
      Orateur: Dr Giacomo Monari
    • 16:15 17:00
      Discussion + coffee break 45m
    • 17:00 17:30
      Testing simple DM phase-space prediction methods on zoom-in simulations I: Formalism 30m
      Orateur: Dr Thomas Lacroix
    • 17:30 18:00
      Testing simple DM phase-space prediction methods on zoom-in simulations II: Data 30m
      Orateur: M. Arturo Nunez
    • 18:00 18:20
      Discussion 20m
    • 09:00 10:00
      The impact of baryons on LCDM structure formation 1h
      Orateur: Dr Oscar Agertz
    • 10:00 10:15
      Discussion + Coffee break 15m
    • 10:15 11:00
      Detailed subgrid astrophysics: star formation 45m
      Orateur: Dr Florent Renaud
    • 11:00 11:30
      Discussion 30m
    • 11:30 12:30
      Dark matter subhalos in LCDM cosmological simulations 1h
      Orateur: Dr Go Ogiya
    • 12:30 13:30
      Lunch 1h
    • 13:30 14:00
      More on subhalos 30m
      Orateur: M. Raphael Errani
    • 14:00 14:30
      Even more on subhalos 30m
      Orateur: M. Martin Stref
    • 14:30 15:00
      Discussion 30m
    • 15:00 16:00
      Axion-like particle dark matter 1h
      Orateur: Dr David J. E. Marsh
    • 16:00 16:30
      Discussion + Coffee break 30m
    • 16:30 17:30
      Warm dark matter 1h
      Orateur: Dr Aurel Schneider
    • 17:30 17:50
      Discussion 20m
    • 17:50 18:35
      Lymann-alpha constraints on dark matter clustering 45m
      Orateur: Dr Eric Armengaud
    • 18:35 18:55
      Discussion 20m
    • 20:00 23:00
      Dinner in town 3h
    • 09:30 10:00
      Superfluid dark matter 30m
      Orateur: Dr Benoit Famaey
    • 10:00 11:00
      Primordial black holes as dark matter 1h
      Orateur: Dr Florian Kuhnel
    • 11:00 11:30
      Discussion 30m
    • 11:30 11:45
      Concluding remarks 15m
      Orateur: Dr Julien Lavalle
    • 11:45 12:45
      Lunch - End of the worshop 1h