IFPU/SISSA, Trieste, 8-12 September 2025

 Room 205, IFPU, Trieste (Italy)

Most of the Universe is still invisible, with 95% of its contents consisting of dark matter and dark energy yet to be understood. But even the remaining 5% in the form of ordinary matter, which strong structure formation shocks have mostly heated, resides in a largely unexplored warm-hot, diffuse, X-ray emitting, and source of SZ distortions, plasma that permeates the halos of galaxies, galaxy groups and clusters, and the cosmic web in general, as defined by the intricate network of filaments, nodes, and sheets generated by the interaction of gravity and the dark components.

Our Focus Week will be dedicated to "The astrophysics of large-scale structures in the era of eROSITA, Euclid, SPT-3G: the emergence of the cosmic web” with a focus on the environment in which collapsed objects exceeding 1e13 solar masses and existing up to redshift 2 (and above) form and evolve. 

By bringing together world-renowned experts in the field, we intend to (i) present the best available dataset from state-of-the-art optical, IR, X-ray, SZ structures and hydrodynamic simulations, (ii) discuss the interconnections between these different proxies in providing a coherent and consistent picture of the backbone of the Universe, (iii) promote synergistic activities to advance further our understanding of the astrophysical phenomena underlying the formation and evolution of cosmic structures.

The meeting will start on Monday, September 8 at ~10 AM  and end on Friday, September 12 at lunchtime: program.

We propose 2 sessions a day (AM: 10-12:30; and PM: 2:30-5:30) from Monday to Thursday, with ~1 talk for each AM session and ~2 for each PM session, for a total of a maximum of 3/4 talks a day and ~15 talks in the week. Plenty of time will be dedicated to discussing the topics promoted, described, and explored during the talks in each session.

The AM session on Friday will be an open table to revise the major outcomes of the week and to plan any possible further activity on the topic of the “astrophysics of the large-scale structures & the emergence of the cosmic web”.

Organizers: Stefano ETTORI (INAF-OAS Bologna, IT), Alexandro SARO (Univ. Trieste, IT)

Participants: Nabila AGHANIM (IAS, Orsay, FR); Mohammadreza AYROMLOU (Univ Bonn, DE); Xiaoyuan ZHANG (Esra BULBUL; MPE Garching, DE); Sebastiano CANTALUPO (Univ. Milano Bicocca, IT); Luca DI MASCOLO (Kapteyn Astronomical Institute, NL); Dominique ECKERT (Univ. Geneva, CH); Daniela GALARRAGA (MPA/Kavli-IPMU, J); Vittorio GHIRARDINI (INAF-OAS Bologna, IT); Nina HATCH (Univ Nottingham, UK); Nicola MALAVASI (MPE Garching, DE); Alice PISANI (CNRS CPPM AMU, FR); Paola POPESSO (ESO Garching, DE); Joop SCHAYE (Leiden Obs, NL); Paolo TOZZI (INAF-OA Arcetri, IT)

Locals: Veronica BIFFI; Stefano BORGANI; Tiago CASTRO; Matteo COSTANZI; Pierluigi MONACO; Matteo VIEL

Contact: stefano.ettori@inaf.it

VENUE

Room 205 at IFPU

REGISTRATION AND PRACTICAL INFORMATION

The meeting is by invitation only.

For the invited participants, a certain number of rooms will be provided at the ICTP guesthouses within the Miramare campus, where IFPU is located. Would this option not be available for all guests, some of them will stay at hotels located in the Miramare Area or in the Trieste city center, about 5 km from the Miramare campus on a direct bus route. IFPU secretariat will make arrangements for both options. Regarding meal expenses, there is a daily allowance of about EUR 50 (based on per diem or receipts reimbursement, depending on the final arrangement for the accommodation).