Valencia Workshop on the Small-Scale Structure of the Universe and Self-Interacting Dark Matter

from Monday, 9 June 2025 (08:00) to Friday, 20 June 2025 (17:10)


        : Sessions
    /     : Talks
        : Breaks
9 Jun 2025
10 Jun 2025
11 Jun 2025
12 Jun 2025
13 Jun 2025
16 Jun 2025
17 Jun 2025
18 Jun 2025
19 Jun 2025
20 Jun 2025
AM
08:15 Registration   ()
09:00 Words of IFIC´s director - Nuria Rius (IFIC, Valencia University-CSIC)   ()
09:05 Welcome - Camilo Garcia Cely (IFIC)   ()
09:15 Opening remarks - Manoj Kaplinghat (UC-Irvine)   ()
09:30
Simulations (until 13:20) ()
09:30 Review talk: The state of the art of self-interacting dark matter simulations - Moritz Fischer (LMU)   ()
10:10 Extracting Dark Matter from Dwarfs - Lina Necib (MIT)   ()
10:30 The rich astrophysical phenomenology of a dissipative dark sector - Xuejian Shen (MIT)   ()
10:50 Endo- and exothermic scattering in Milky Way-mass halos - Stephanie O'Neil (University of Pennsylvania, Princeton)   ()
11:10 --- coffee break ---
11:50 A detailed characterisation of low-mass dark matter subhalo tidal tracks via numerical simulations - Alejandra Aguirre-Santaella (Institute for Computational Cosmology, Durham University (ICC Durham))   ()
12:10 Moderated discussion   ()
09:30
Lensing (until 13:00) ()
09:30 Review talk: Strong lensing as a tool for measuring the properties of dark matter - Anna Nierenberg (UC Merced)   ()
10:10 How 30+ quadruply-imaged quasars can constrain self-interacting dark matter - Daniel Gilman (University of Chicago)   ()
10:30 Exploring the identity of dark matter with galaxy strong lensing - Ran Li (Beijing Normal University)   ()
10:50 CDM, SIDM or Baryons: Subhalo detection with simulation-based inference from galaxy-scale strong lenses - Maximilian von Wietersheim-Kramsta (Durham University)   ()
11:10 --- Coffee break ---
11:50 Interpretable Machine Learning for Constraining Self-Interacting Dark Matter in Galaxy Clusters - Ethan Tregidga (EPFL)   ()
12:02 The role of Stellar Velocity Anisotropy and Dark Matter of Massive Ellipticals in H0 inference via Strong Lensing - Vishal Verma (CUNY Graduate Center)   ()
12:14 The “little dark dot”: Evidence for Self-Interacting Dark Matter in the Strong Lens SDSSJ0946+1006? - Shubo Li (National Astronomical Observatories, Chinese Academy of Sciences)   ()
12:26 The dense, low-mass perturbers in B1938+666 and J0946+1006: implications for cold and self-interacting dark matter - Tajalli Maryam (MPA)   ()
09:30
Models of dark matter (until 13:00) ()
09:30 Review talk: Self-interacting dark matter candidates in dark sectors - Xiaoyong Chu   ()
10:10 Self-interacting dark matter and inelasticity - Kallia Petraki (ENS and Sorbonne University)   ()
10:30 Profiling Dark Matter Spikes with Gravitational Waves - Prolay Krishna Chanda (Tata Institute of Fundamental Research, Mumbai)   ()
10:50 Dark matter bound-state formation in the sun - Thomas Hambye (Brussels University (ULB))   ()
11:10 --- Coffee break ---
11:50 Dark sector to the rescue of large neutrino masses in cosmology - Drona Vatsyayan (IFIC (UV-CSIC))   ()
12:02 Dark Matter in an Evanescent Three-Brane Randall-Sundrum Scenario - Alejandro Muñoz Ovalle (IFIC-UV)   ()
12:14 Color-Flavor Locked SIDM - Lorenzo De Ros (TUM)   ()
12:26 Moderated discussion   ()
09:30
Satellites/streams (until 13:19) ()
09:30 Review talk: Particle nature of dark matter with stellar streams - Ana Bonaca (Carnegie Observatories)   ()
10:10 Shaping the Galactic potential: Environment, Mergers & Stellar Tracers - Arpit Arora (University of Washington)   ()
10:30 Using stellar streams as dark matter detectors in the Milky Way-LMC collision - Denis Erkal (University of Surrey)   ()
10:50 The unabridged satellite luminosity function of Milky Way-like galaxies in ΛCDM: the contribution of “orphan” satellites - Isabel Santos-Santos (Institute for Computational Cosmology, Durham University)   ()
11:10 --- Coffee break ---
11:50 Challenges and complexities of studying the fundamental nature of dark matter with stellar streams - Guillaume Thomas (Instituto de Astrofísica de Canarias)   ()
12:10 GravSphere2: An extended higher-order Jeans modeling approach - Andrés Bañares Hernández (Instituto de Astrofísica de Canarias)   ()
12:22 SIDM interpretations of GD-1 and Crater II - Xingyu Zhang (Tsinghua University)   ()
09:20
Models of dark matter (until 13:34) ()
09:30 Signatures of Self-Interacting Dark Sectors - Kimberly Boddy (University of Texas at Austin)   ()
09:50 What is the mass scale of self-interacting dark matter? - Felix Kahlhoefer (Karlsruhe Institute of Technology)   ()
10:10 SIDM with low-temperature reheating - Nicolás Bernal (New York University Abu Dhabi)   ()
10:30 Dynamics of simplified SIDM models during reheating. - Kuldeep Deka (New York University Abu Dhabi)   ()
10:50 Dark Bondi Accretion Aided by Baryons and the Origin of JWST Little Red Dots - Wei-Xiang Feng (Tsinghua University)   ()
11:10 --- Coffee break ---
11:50 Two coincidences are a clue: Probing a GeV-scale dark sector - Yi Chung (Max-Planck-Institut für Kernphysik)   ()
12:10 Moderated discussion   ()
12:40 Conclusions of the week - Yu Hai-bo (University of California, Riverside)   ()
08:15 Registration   ()
09:15 Welcome - Giulia Despali (University of Bologna)   ()
09:25 Logistics - Camilo Garcia Cely (IFIC)   ()
09:30
Simulations (until 13:30) ()
09:30 Review talk: Cosmological baryonic simulations - Andrew Wetzel (University of California, Davis)   ()
10:10 Core Dynamics: a proving ground for dark matter self-interactions - Frank van den Bosch (Yale University)   ()
10:30 An SIDM simulation of the merging cluster El Gordo and its tension between the post collision DM density profiles and weak lensing constraints - Riccardo Valdarnini (SISSA)   ()
10:50 No particle left behind: towards reliable subhalo tracking for all types of dark matter - Benedikt Diemer (University of Maryland)   ()
11:10 --- Coffee break ---
12:10 Dark Matter Halos in beyond-CDM cosmologies - Arka Banerjee (IISER Pune)   ()
12:30 Auriga SuperDarks: Probing Disc Dynamics in an SIDM Universe - Thomas Tomlinson (Durham University)   ()
12:42 Moderated discussion   ()
09:30
Lensing (until 13:20) ()
09:30 Review talk - Simona Vegetti (MPA)   ()
10:10 Not so dark, not so dense: a reassessment of the lensing subhalo in SDSSJ0946+1006 - Andrew Robertson (Carnegie Observatories)   ()
10:30 Breaking the next frontier of SIDM with Euclid - David Harvey (EPFL)   ()
10:50 Measurements of dark matter distributions from galaxy clusters and constraints on dark matter - Susmita Adhikari (Indian Institute of Science Education and Research)   ()
11:10 --- Coffee break ---
11:50 Line-of-Sight Effects on the Brightest Cluster Galaxy Wobble - Felix Vecchi (EPFL)   ()
12:02 Massive neutrinos, extra neutrinos, and other surprises in ΛCDM Cosmology - Helena Garcia Escudero (University of California, Irvine)   ()
12:14 Moderated discussion   ()
09:00
Models of dark matter (until 12:20) ()
09:00 Review talk (CANCELLED) - Oren Slone (Tel Aviv University)   ()
09:40 Extracting dark matter physics from the joint luminosity, stellar dispersion, and galaxy-size distribution of Milky Way satellites. - Francis-Yan Cyr-Racine (University of New Mexico)   ()
10:00 Dark matter spikes with strongly self-interacting particles - Alejandro Ibarra (Technical University of Munich)   ()
10:20 Gravothermalizing into cannibal stars, boson stars, and black holes - Pranjal Ralegankar (SISSA)   ()
10:40 --- Coffee break ---
11:10 Particle production from metric inhomogeneities - Raghuveer Garani (Indian Institute Of Technology–Madras, Chennai)   ()
11:30 Core Collapse Beyond the Fluid Approximation - James Gurian (Perimeter Institute)   ()
11:50 Probing the abundance and internal structure of low-mass DM halos with MW satellites in WDM & SIDM scenarios - Soumyodipta Karmakar (University of New Mexico)   ()
09:30
Models of dark matter (until 13:00) ()
09:50 Quantum theory of dark matter scattering - Ayuki Kamada (University of Warsaw)   ()
10:10 Successful SIDM without light mediators: a dark pion model - Giacomo Landini (CSIC-IFIC)   ()
10:30 Production of velocity-dependent pion SIMPs - Oscar Zapata (University of Antioquia)   ()
10:50 --- Coffee break ---
11:30 A portal to the SM for resonant SIMPS - Luca Marsili (IFIC-University of Valencia)   ()
11:42 Freezing-in Cannibal Dark Matter during early matter domination - Juan Esau Cervantes Hernandez (NCBJ (Warsaw))   ()
11:54 Confining Dark Sectors: Heavy Quarks and Self-Interacions - Giovani Dalla Valle Garcia (KIT)   ()
12:06 Ultra-compact Objects of Non-minimally Coupled Dark Matter - Francesco Benetti (SISSA)   ()
12:18 Thermal evolution of the excited states in inelastic dark matter models - Javier Silva Malpartida (PONTIFICIA UNIVERSIDAD CATÓLICA DEL PERÚ)   ()
12:30 Moderated discussion   ()
09:30
Satellites/streams (until 12:52) ()
09:30 Empirical dark matter profiles with symbolic regression - Tariq Yasin (Oxford University)   ()
09:50 Dark subhaloes in dwarf spheroidal galaxies - Jorge Peñarrubia (Royal Observatory of Edinburgh)   ()
10:10 DarkLight: Insights from the EDGE simulations on how baryons respond to halo evolution and their implications for SIDM - Stacy Kim (Carnegie Observatories)   ()
10:30 The stellar distribution in ultra-faint dwarf galaxies suggests deviations from the collision-less cold dark matter paradigm - Jorge Sanchez Almeida (Instituto de Astrofisica de Canarias)   ()
10:50 New ideas to find ultralight dark matter searches in astrophysical data - Diego Blas (ICREA/IFAE)   ()
11:10 --- Coffee break ---
11:50 The Precision Frontier of Dark Matter Constraints - from Direct Acceleration Measurements - Sukanya Chakrabarti (UAH)   ()
12:10 Novel Challenges in Tracking Self-Interacting Dark Matter Subhalos - Demao Kong (University of California, Riverside)   ()
12:22 Moderated discussion   ()
PM
15:30
Simulations (until 18:50) ()
15:30 Stellar halos as a probe of SIDM - Azadeh Fattahi (Stockholm University - Durham University)   ()
15:50 Exploring solutions to the dwarf galaxy diversity problem - Akaxia Cruz (Simons Foundation)   ()
16:10 Universal subhalo distributions across mass, redshift, hierarchy and cosmology - Jiaxin Han (Shanghai Jiao Tong University)   ()
16:30 --- Coffee break ---
17:10 MARVEL-ous Dark Matter Constraints using Dwarf Galaxies - Ferah Munshi (George Mason University)   ()
17:30 Nature, nurture, and the phase space distribution of the Milky Way's high redshift progenitors today - Balu Sreedhar (University of Seville, Spain)   ()
19:00 Welcome cocktail at the Botanic Garden   ()
15:15
Lensing (until 18:20) ()
15:15 Is the dark substructure in lens J0946+1006 a core-collapsed SIDM subhalo? - Quinn Minor (CUNY Borough of Manhattan Community College)   ()
15:35 The overconcentrated dark halo in the strong lens SDSS J0946 + 1006 is a subhalo: evidence for self-interacting dark matter? - Wolfgang Enzi (Institute for Cosmology and Gravitation Portsmouth)   ()
15:55 Gravitational imaging detection of a 10^6 solar mass object in the strong lens system JVAS B1938+66 - Devon Powell (Max Planck Institute for Astrophysics)   ()
16:15 Emerging Opportunities to Resolve Challenging Observations through Self-Interacting Dark Matter with Mass Segregation - Daneng Yang (Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China)   ()
16:35 --- Coffee break ---
17:10 Interacting dark matter dark energy scenarios - Olga Mena (IFIC/CSIC-UV)   ()
17:30 Stress-testing CDM with cluster-lenses - Priya Natarajan (Yale Universtiy)   ()
17:50 Moderated discussion   ()
18:30 Walking tour   ()
16:10 --- Coffee break (with Horchata) ---
15:30
Satellites/streams (until 18:30) ()
15:30 Review talk: Dark matter determinations in Local Group dwarf galaxies - Giuseppina Battaglia (Instituto de Astrofisica de Canarias)   ()
16:10 Feedback-independent constraints on halo structure from extended rotation curves: concentrations challenge LCDM (remote) - Sebastian Trujillo-Gomez (Heidelberg Institute for Theoretical Studies (HITS))   ()
16:30 --- Coffee break ---
17:10 Investigating the effect of stellar bars on the formation of dark matter halo cores - Sioree Ansar (Durham University, United Kingdom)   ()
17:30 Challenges Posed by: Ultra-faint Dwarf Galaxies - Nitya Kallivayalil (University of Virginia)   ()
17:50 Moderated discussion   ()
20:30 Conference dinner   ()
16:30 --- Coffee break at CSIC Casa de la Ciencia ---
15:30
Satellites/streams (until 18:40) ()
15:30 Review talk: Satellite Galaxies and Stellar Streams as Probes of SIDM - Ethan Nadler (UC San Diego)   ()
16:10 Probing Dark Matter From Intact, Disrupting and Disrupted Galaxies - Ting Li (University of Toronto)   ()
16:30 --- Coffee break ---
17:10 Probing Dark Matter Microphysics Using Stellar Streams - Aditya Parikh (Stony Brook University)   ()
17:30 Dark matter halo properties of the Sculptor dwarf spheroidal galaxy. - José María Arroyo-Polonio (Instituto de Astrofísica de Canarias)   ()
17:42 Stellar streams as targets for indirect dark matter searches - Cristina Fernandez (Universidad Autónoma de Madrid)   ()
17:54 Moderated discussion   ()
19:00 Welcome cocktail at SH Inglés: Carrer del Marquès de Dos Aigües, 6, Ciutat Vella, 46002 València, Valencia   ()
15:30
Simulations (until 18:10) ()
15:30 Dark Matter Halo Structural Properties: Substructures and Shapes as challenges for CDM - Carlo Giocoli (INAF-OAS Bologna)   ()
15:50 Dynamical Evolutions in Globular Clusters and Dwarf Galaxies: Conduction Fluid Simulations - Yiming Zhong (City University of Hong Kong)   ()
16:10 Formation of the Little Red Dots from the Core-collapse of Self-interacting Dark Matter Halos - Fangzhou Jiang   ()
16:30 --- Coffee break ---
17:10 Dark matter probes across scales (remote) - Vera Gluscevic (University of Southern California)   ()
17:30 The structure of the Galactic Halo as a Dark Matter Laboratory (remote) - Nicolas Garavito Camargo (University of Arizona)   ()
18:30 Walking tour   ()
12:30 IFIC-SO Colloquium: Prof. Julio F. Navarro, Dark Matter Clues from the Faintest Galaxies - Julio Navarro (University of Victoria)   ()
16:30 --- Coffee break at CSIC Casa de la Ciencia ---
15:30
Simulations (until 18:40) ()
15:30 The AIDA simulations: galaxy formation in SIDM and WDM - Giulia Despali (University of Bologna)   ()
15:50 The response of stellar systems to SIDM halo evolution - Annika Peter (The Ohio State University)   ()
16:10 Stability of Ultra Diffuse Galaxies in CDM (and SIDM) - Filippo Fraternali (University of Groningen)   ()
16:30 --- Coffee break ---
17:10 Dynamical Halos are Better! - Eduardo Rozo (University of Arizona)   ()
17:30 FIRE simulations with SIDM - Robyn Sanderson (University of Pennsylvania)   ()
17:50 Dark Matter Clues from the Faintest Galaxies - Julio Navarro (University of Victoria)   ()
21:00 Conference dinner   ()
12:52 Conclusions of the workshop   ()
13:30 --- Drinks ---
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