Diffusion ATCG – n° 7 – 3 juin 2025

1. Strings & Cosmology Meeting, 10-12 December 2025, Annecy, France

2. Cosmic Cartography with Roman: Advances in Galaxy Structures, Distributions, Dark Matter, and Dark Energy, 14-18 July 2025, Baltimore, USA

3. Summary of the ATLAST-French days, 12-14 May 2025, Paris 

Envoyez svp vos propositions d’annonces à l’adresse : atcg@services.cnrs.fr

Pour vous inscrire ou gérer votre abonnement à la liste ATCG: https://listes.services.cnrs.fr/wws/info/atcg.newsletter

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1. Strings & Cosmology Meeting, 10-12 December 2025, Annecy, France

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We are happy to announce the Strings & Cosmology Meeting. This 3-days workshop will take place at LAPTh in Annecy, France, on the 10-12th December 2025. Save the date!

The aim is to gather cosmologists and string theorists to discuss the latest developments on dark energy, Hubble tension, CMB physics and cosmological correlators, with updates on both the observational and the theoretical constraints. Time will be given for discussions between the communities.

Registration will open in the fall 2025. There will be a call for contributed talks.

The organisers (David Andriot, Vivian Poulin, Sébastien Renaux-Petel, Gary Shiu)

Transmis par David Andriot

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2. Cosmic Cartography with Roman: Advances in Galaxy Structures, Distributions, Dark Matter, and Dark Energy, 14-18 July 2025, Baltimore, USA

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Registration is closing soon for the annual Roman Science Symposium: “Cosmic Cartography with Roman.” The symposium is to be held July 14th-18th, 2025, at STScI in Baltimore. The schedule is now available.

Registration will be open until June 9th, 2025.

The Nancy Grace Roman Space Telescope, planned to launch in late 2026, will be capable of surveying the sky 1000 times faster than the Hubble Space Telescope with similar sensitivity and resolution. A combination of near-infrared imaging and spectroscopic surveys, designed by Roman’s community-defined Core Community Surveys and General Astrophysics Survey programs, will generate unique datasets and large-area maps of the sky that will catalyze scientific discovery across all of astrophysics. Roman’s accurate mapping of stars, galaxies, and galaxy clusters will offer the unique ability to map our entire Universe, both the seen and the unseen.

This symposium aims to focus on the intersection of dark energy and dark matter with galaxy formation and evolution. It will explore the novel research that is possible only with large cosmic surveys and simulations and discuss how the community will be able to optimize scientific output with Roman in the future. Topics of discussion will include, but are not limited to, the expected impacts from Roman observations of galaxy clustering (including BAO/RSD), weak lensing, galaxy clusters, supernova cosmology, stellar streams, and dwarf galaxies. The symposium will strive to foster synergies between contemporaneous experiments to Roman, such as Euclid, Rubin, DESI, Simons Observatory, and SPT. The schedule will feature invited talks, contributed talks, posters, discussion panels, and fun social activities.

The symposium will be a hybrid event (in-person and virtual). 

Transmis par Samuel Boissier

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3. Summary of the ATLAST-French days, 12-14 May 2025, Paris

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The Atacama Large Aperture Submillimeter Telescope (AtLAST) is a concept for a wide-field of view (1-2 square degrees) 50-meter telescope working in the sub/millimeter at 5000m. With strong synergies with IRAM, SKA, and ALMA, and much to learn from these facilities, AtLAST will also revolutionize astronomy by providing deep and wide field-of-view observations of the millimeter and sub-millimeter sky.

Following the recommendations of the A&A prospective, we organised a 3-day workshop gathering 85 participants to discuss the current status of the AtLAST project, its scientific potential, gauge France’s potential interest and role in joining/supporting AtLAST, leverage on the french know-how in instrumentation and data reduction/analysis, and take into account the environmental and societal considerations.

The meeting fostered extensive discussion. The summary of the meeting is available at the following link: https://atlast-fr-days.sciencesconf.org/?lang=en

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