News from the Dark 9

13 nov. 2024, 09:00 → 15 nov. 2024, 17:00 Europe/Paris

Emmanuel Nezri (Laboratoire d'Astrophysique de Marseille), Julien Lavalle (LUPM - Montpellier), Benoit Famaey (CNRS Observatoire astronomique de Strasbourg), Francesca CALORE, Patrick VALAGEAS (CEA Saclay)

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 carpets, share knowledge or ideas,  trigger collaborative work. This is the ninth edition of this workshop series (previous editions: 2013, 2017, 2018, 2019, 2020, 2021, 2022, 2023).

The 2024 meeting will take place at the Station Marine d'Endoume (Marseille, France).

Invited speakers include: Philippe Amram (LAM), James Binney (Oxford, TBC), Pier-Stefano Corasaniti (LUTh), Giulia Despali (U. Bologna) Raquel Galazo Garcia (LAM), Patrick Hennebelle (CEA/AIM), Natalie Hogg (LUPM), Fabrice Hubaut (CPPM), Eric Jullo (LAM), Katarina Kraljic (ObAS), Nicolas Laporte (LAM), Silvia Manconi (LAPTh), Jens Niemeyer (U. Göttingen), Florent Renaud (LAM), Tanja Rindler-Daller (U. Vienna), Pierre Salati (LAPTh), Pasquale Serpico (LAPTh), Peter Tinyakov (ULB).

This meeting is partly supported by LUPM, ObAS, LAM, AMU, the CNRS-INSU National Programs PNHE and PNCG, the ANR under contract ANR-18-CE31-0006 (the GaDaMa project), and by the ERC project GREATDIGINTHESKY.

mercredi 13 novembre

13:00 → 13:30 Welcome

13:30 → 13:50 Welcome address

Orateurs: Julien Lavalle (LUPM - Montpellier), Emmanuel Nezri (Laboratoire d'Astrophysique de Marseille)

intro_nftd24.pdf

13:50 → 14:25 Review on dark matter candidates

Orateur: Prof. Pearl Sandick (U. Utah)

DMcandidates_Sandick.pdf

14:25 → 15:00 Review on direct axion searches

Orateur: Fabrice Hubaut (CPPM, Aix-Marseille Université, CNRS/IN2P3)

Axions_NFTD_2024.pdf

15:00 → 15:35 Axionic structure formation and current constraints

Orateur: Prof. Jens Niemeyer (U. Göttingen)

ULA24_Niemeyer.pdf

15:35 → 16:00 Coffee break

16:00 → 16:35 Fuzzy dark matter with and without self-interaction

Orateur: Raquel Galazo-Garcia (IPhT - CEA)

GALAZO_nftd.pdf

16:35 → 17:10 Axion miniclusters

Orateur: Dr Marco Gorghetto (DESY-Hamburg)

Gorghetto_Strings_Walls_Miniclusters.pdf

17:10 → 17:45 On the effect of stochastic density fluctuations on collisionless systems

Orateur: Jonathan Freundlich

Freundlich_NFTD24.pdf

17:45 → 18:20 Inspirals of black holes inside wave dark matter halos

Orateur: Dr Rodrigo Vicente (IFAE Barcelona)

Vicente_DarkNews.pdf

18:20 → 18:50 Discussion

jeudi 14 novembre

09:00 → 09:35 Early galaxies with JWST - a challenge for LCDM?

Orateur: Dr Nicolas Laporte (LAM)

Nicolas_Laporte_News-From-The-Dark.pptx

Nicolas_Laporte_News-From-The-Dark.pptx.pdf

09:35 → 10:10 Constraints on Dark Matter from galaxy rotation curves

Orateur: Dr Bianca-Iulia Ciocan (CRAL-Lyon)

DM_workshop_presentation_Ciocan.pdf

10:10 → 10:40 Coffee break and discussion

10:40 → 11:15 The benefit of very high resolution - multiscale approaches to structure formation

Orateur: Dr Florent Renaud (ObAS)

11:15 → 11:50 Interstellar medium, stellar formation - how realistic are baryonic physics and feedback in simulations?

Orateur: Patrick Hennebelle (Observatoire de Paris and Ecole normale supérieure)

11:50 → 12:25 Subhalos in the Mochima simulation

Orateur: Dr Arturo Nuñez-Castiñeyra (AIM)

NFDD_9_NunezCastineyra.pdf

12:25 → 14:00 Lunch break

14:00 → 14:35 Lensing: observational and interpretation review

Orateur: Eric Jullo (LAM)

lensing review_jullo.pdf

14:35 → 15:10 Lensing in cosmology: theory review

Orateur: Natalie Hogg (LUPM Montpellier)

news_from_the_dark_2024.pdf

15:10 → 15:45 Dark matter halos and sparsity

Orateur: Dr Pier-Stefano Corasaniti (CNRS & Observatoire de Paris)

PSC_News_from_the_Dark.pdf

15:45 → 16:20 On the origin of gamma-rays from the Galactic center

Orateur: Silvia Manconi (LAPTh)

manconi_NfD_2024_online.pdf

16:20 → 16:50 Coffee break and discussion

16:50 → 17:25 Early formation of dark matter spikes around primordial black holes

Orateur: Pierre SALATI (Laboratoire d'Annecy-le-Vieux de Physique Théorique LAPTH)

NFTD_241114_Salati.pdf

17:25 → 18:00 Dynamical constraints on primordial black holes in the asteroid mass range

Orateur: Petr Tinyakov (Universite Libre de Bruxelles)

2024-Marseille-PBH_Tinyakov.pdf

18:00 → 18:35 Primordial black holes from self-resonant preheating

Orateur: Pasquale Dario Serpico (LAPTh, Annecy-le-vieux)

2411_Serpico_NftD.pdf

18:35 → 19:00 Discussion

20:00 → 23:00 Social dinner - Chez Jeannot (129, r. Vallon des Auffes, 13007 Marseille)

Restaurant Chez Jeannot
129 Rue du Vallon des Auffes
13007 Marseille

vendredi 15 novembre

09:10 → 09:45 On the Milky Way's rotation curve

Orateur: Prof. Philippe Amram (LAM)

09:45 → 10:20 Galactic dynamics: news, challenges, and the impact of Gaia

Orateur: Benoit Famaey (CNRS Observatoire astronomique de Strasbourg)

Famaey_Gaia_NFTD2024.pdf

10:20 → 10:50 Coffee break

10:50 → 11:25 On the Milky Way's disk

Orateur: Yassin Rany Khalil (ObAS)

presentation_yassin.pdf

presentation_yassin_power.pptx

11:25 → 12:00 Carte blanche

Orateur: Prof. James Binney (U. Oxford)

MarseillesBinney.pdf

12:00 → 12:30 Final discussion and end of the workshop

12:30 → 13:30 Final lunch