CL2025: Entering a Golden Age of Galaxy Cluster Studies
| Tuesday September 23, 2025 | |
|---|---|
| 08:30~08:55 | Registration |
| 08:55~09:10 | Opening remarks and logistics [Yen-Ting Lin (ASIAA)] |
| Session 1: Galaxy formation and evolution in clusters Chair: Yen-Ting Lin (ASIAA) | |
| 09:10~09:35 | Invited Quenching for ram pressure in galaxy clusters Bianca Poggianti (INAF-Astronomical Observatory of Padova) |
| 09:35~09:50 | Spider-Webb: A sharp, complete picture of forming protocluster galaxies at z=2 Yusei Koyama (National Astronomical Observatory of Japan) |
| 09:50~10:05 | Inside-out growth of star formation within galaxies in the Spiderweb protocluster at z~2 revealed by JWST narrow-band imaging Michiru Maruyama (the University of Tokyo) |
| 10:05~10:20 | Deriving Galaxy Stellar Mass Functions of Local Massive Clusters Based on Dense Spectroscopy Jong-in Park (Seoul National University) |
| 10:20~10:50 | Coffee Break |
| 10:50~11:15 | Invited Gas Depletion and Star Formation Quenching in Nearby Galaxy Clusters Kana Morokuma (University of Tokyo) |
| 11:15~11:30 | Tracing Transition Galaxies in a z = 1.5 Cluster: Star Formation and Morphology in the Euclid Era Ko Ishida (Tohoku University) |
| 11:30~11:45 | From the star formation history of the core to the structure of the outskirts: stacking analyses of the MaDCoWS2 clusters between z=0.5 and 2 Ariane Trudeau (ASIAA (formerly at the University of Florida)) |
| 11:45~12:00 | Emergence of the Galaxy Morphology-Star Formation Activity-Clustercentric Radius Relations in Galaxy Clusters Changbom Park (Korea Institute for Advanced Study) |
| 12:00~13:30 | Lunch |
| Session 2: Status of ongoing surveys and prospects of future projects Chair: Hironao Miyatake (Nagoya University) | |
| 13:30~13:55 | Invited The South Pole Telescope: Latest and upcoming results from the SPT-3G experiment and future plans Bradford Benson (University of Chicago, Fermilab) |
| 13:55~14:20 | Invited Galaxy Clusters as Probes for Cosmology: Status and Perspectives from Current Surveys Barbara Sartoris (MPE-LMU) |
| 14:20~14:35 | ULTIMATE survey of large scale structures and protoclusters at z>2 Tadayuki Kodama (Tohoku University) |
| 14:35~15:00 | Invited Where Clusters Collide and Cosmic Filaments Connect: Weak Lensing with Subaru and Rubin Hyejeon Cho (Yonsei University) |
| 15:00~15:30 | Coffee Break |
| 15:30~15:55 | Invited Subaru Prime Focus Spectrograph (PFS) Cosmology Program Tomomi Sunayama (ASIAA) |
| 15:55~16:35 | Discussion session 1 |
| 16:35~16:50 | From Hyper Suprime-Cam to Prime Focus Spectrograph Masayuki Tanaka (NAOJ) |
| 16:50~17:15 | Invited Results from the HSC Galaxy Cluster Working Group Nobuhiro Okabe (Hiroshima University) |
| Wednesday September 24, 2025 | |
| 08:30~08:55 | Registration |
| 08:55~09:00 | LOC announcements |
| Session 3: Novel ways of detecting massive structures Chair: Tadayuki Kodama (Tohoku University) | |
| 09:00~09:25 | Invited Studying Galaxy Protoclusters at Cosmic Noon with Subaru PFS Khee Gan Lee (Kavli IPMU) |
| 09:25~09:40 | Photometrically Selected Protocluster Candidates at z$\sim$9-10 in the JWST COSMOS-Web field Tomo Goto (NTHU) |
| 09:40~09:55 | Searching for Dark Structures: A Comparison of Weak Lensing Convergence Maps and Lensing-Weighted Galaxy Density Maps Soojin Kim (Seoul National University) |
| 09:55~10:10 | Weak lensing detection of galaxy clusters using redshift tomography in the framework of the Euclid mission Loris Chappuis (CEA Paris Saclay) |
| 10:10~10:25 | Near-IR Weak-lensing (NIRWL) Measurements in the CANDELS Fields BoMee Lee (Korea Astronomy and Space Science Institute) |
| 10:25~10:55 | Coffee Break |
| 10:55~11:10 | Full-sky Density Reconstruction for Cluster and Protocluster Searches Yi-Kuan Chiang (ASIAA) |
| Session 4: Mass assembly of clusters and the formation of BCGs and ICL Chair: Jubee Sohn (SNU) | |
| 11:10~11:35 | Invited The Frontier of Intracluster Light Studies Anthony Gonzalez (University of Florida) |
| 11:35~11:50 | Deciphering a Galaxy Cluster Merger with Extreme Relic Separation: A Weak-Lensing Study of PSZ2 G181.06+48.47 Eunmo Ahn (Yonsei University) |
| 11:50~12:10 | Poster flash talks |
| 12:10~12:20 | Group Photo |
| 12:20~13:40 | Lunch and Poster Session |
| 13:40~13:55 | Multi-probe mass models of massive galaxy clusters Benjamin Beauchesne (University of Durham) |
| 13:55~14:10 | The intracluster light across redshift and cluster environment Louisa Canepa (University of New South Wales) |
| 14:10~14:25 | Poster flash talks |
| ASIAA Colloquium (1F Auditorium) | |
| 14:25~15:30 | Invited Universe(s) in a Box Dylan Nelson (Institute for Theoretical Astrophysics, Heidelberg University) |
| 15:30~16:00 | Coffee Break |
| 16:00~16:40 | Discussion session 2 |
| Session 5: Cluster mass estimates and cluster cosmology Chair: James Jee (Yonsei University) | |
| 16:40~16:55 | Spectroscopic Weak Lensing Tomography for Local Massive Clusters Jubee Sohn (Seoul National University) |
| 16:55~17:20 | Invited Weak-Lensing Shear-Selected Galaxy Clusters in the Hyper Suprime-Cam Subaru Strategic Program and its Cosmological Applications I-Non Chiu (National Cheng Kung University) |
| 18:00~21:00 | Banquet |
| Thursday September 25, 2025 | |
| 08:30~08:55 | Registration |
| 08:55~09:00 | LOC announcements |
| Session 5: Cluster mass estimates and cluster cosmology Chair: James Jee (Yonsei University) | |
| 09:00~09:15 | Dark Energy Survey cluster cosmology constraints with simulation-based forward modeling Andres Salcedo (University of Arizona) |
| 09:15~09:30 | JWST Lensing Analysis of Merging Galaxy Clusters: The Bullet Cluster and Abell 2744 Sangjun Cha (Yonsei University) |
| 09:30~09:45 | Unified weak lensing constraints on the M - Lx relation for galaxy clusters Isabel Pederneiras (University of São Paulo) |
| 09:45~10:00 | Weak-Lensing Mass Bias in Merging Galaxy Clusters Wonki Lee (Yonsei University) |
| 10:00~10:15 | The Most Distant Strong-Lensing Cluster: Gravitational Lensing Analysis of XLSSC 122 at z=1.98 Zachary Scofield (Yonsei University) |
| 10:15~10:40 | Coffee Break |
| Session 6: Energetic side of clusters and ICM scaling relations Chair: Keiichi Umetsu (ASIAA) | |
| 10:40~11:05 | Invited XRISM's High-Resolution Spectroscopy: Galaxy Cluster Dynamics Naomi Ota (Nara Women's University) |
| 11:05~11:20 | Toward Precision X-ray Stacking of Low-Mass Galaxy Clusters: Methods and Application to eROSITA Yukana Tsujita (Nara Women's University) |
| 11:20~11:35 | Search for High Energy (MeV to GeV) gamma ray emissions from Galaxy Clusters. Results from Fermi-LAT (with stacking), COMPTEL, DAMPE and indirect searches for dark matter. Siddhant Manna (Indian Institute of Technology Hyderabad, Telangana, India.) |
| 11:35~11:50 | Quantifying and explaining scatter in the X-ray luminosity - halo mass relation Joey Braspenning (Max Planck Institute for Astronomy) |
| 11:50~12:05 | Bridging Simulations and Observations - A deep learning framework applied to Planck clusters Subha Majumdar (Tata Institute of Fundamental reserach) |
| 12:05~12:20 | Baryon Pasting: A Novel Framework for Interpreting Next-Generation SZ and X-ray Observations of Galaxy Clusters and Groups Erwin Lau (Nara Women's University) |
| 12:20~12:35 | Cool-core/non-cool-core dichotomy: the interplay among cluster mergers, radiative cooling, and AGN feedback Hsiang-Yi Karen Yang (National Tsing Hua University) |
| 12:35~13:45 | Lunch (optional) |
| Friday September 26, 2025 | |
| 08:55~09:00 | LOC announcements |
| Session 7: Constraints on dark matter properties Chair: Tomomi Sunayama (ASIAA) | |
| 09:00~09:25 | Invited Probing the Collisionless Nature of Dark Matter through Galaxy Cluster Studies Sut-Ieng Tam (IoP, NYCU) |
| 09:25~09:40 | Tidal Evolution of Dark Matter Subhalos in z ∼ 1 Galaxy Clusters: Evidence from Galaxy–Galaxy Lensing Hye Gyeong Khim (Yonsei University) |
| 09:40~09:55 | Intracluster Light as a Probe for Dark Matter: Exploring SIDM and CDM with C-EAGLE Sim Jaewon Yoo (Korea Institute for Advanced Study) |
| 09:55~10:10 | Probes of Dark Matter Using Large Halo Colliders M. James Jee (Yonsei University/UC Davis) |
| 10:10~10:40 | Coffee Break |
| 10:40~11:20 | Discussion session 3 |
| Session 8: Tumultuous lives of cluster galaxies: quenching and gas inflow/outflow Chairs: Aeree Chung (Yonsei) and Yusei Koyama (NAOJ) | |
| 11:20~11:35 | Galactic Outflows in Cluster Environments: A Case Study of Abell 2199 Chandan Watts (Indian Institute of Astrophysics, Bengaluru, India) |
| 11:35~11:50 | Simulating AGN feedback in galaxy clusters with pre-existing turbulence Jia-Lun Li (NTHU) |
| 11:50~12:05 | Spatially-Resolved Evidence of Inside-Out Quenching in the Spiderweb Protocluster at z~2. Ronaldo Laishram (National Astronomical Observatory of Japan) |
| 12:05~13:35 | Lunch and Poster Session |
| 13:35~14:00 | Invited Probing Cool Gas and Feedback in Massive Halos Ting-Wen Lan (National Taiwan University) |
| 14:00~14:15 | Anisotropic Quenching beyond z=1: A New Probe of Pre-Processing around Cosmic Noon Makoto Ando (National Astronomical Observatory of Japan) |
| 14:15~14:30 | Environmental dependence of chemical evolution in protoclusters and the transition of the mass assembly phase Kota Adachi (Tohoku University) |
| 14:30~14:45 | Is Environment Playing a Role in Quenching Low-mass Galaxies in a Proto-cluster at z~2.6? Richard Pan (Tufts University) |
| 14:45~15:00 | DeepDive: Proto-clusters of massive quiescent galaxies at z~4 Takumi Kakimoto (The Graduate University for Advanced Studies) |
| 15:00~15:30 | Coffee Break |
| 15:30~16:30 | Summary and discussion Changbom Park (KIAS) |