
The true power of the multi-wavelength and multi-messenger approach to studying cosmic sources lies in the complementarity of the data collected across different wavelength bands and messenger channels. Each detector's data serves as a puzzle piece, providing only partial information about the complex astrophysical phenomena associated with cosmic sources. In this context, Astrophysics Centre for Multimessenger studies in Europe - ACME, has recently been funded by the EU under the HORIZON-INFRA-2023-SERV-01 initiative. Led by the CNRS, this center establishes and implements a coordinated structure at the European level, offering transnational access—both on-site and virtual—to the services of Astroparticle and Astronomy infrastructures operating in the multi-messenger domain. This includes space and ground-based observatories, data analysis platforms, software, and computing centers. ACME aims to facilitate scientific collaborations and networking, promote the exchange of best practices, enhance technology, train new generations of scientists, and improve the management of large volumes of data and alert systems.
At IJCLab, our expertise in cloud computing technologies and web-based services has been recognized. The project Fink (https://fink-broker.org), an astronomy broker, along with GRANDMA (https://grandma.ijclab.in2p3.fr), a network of telescopes dedicated to following up on gravitational waves, will play a significant role in ACME. Over the past few years, these two projects have designed, deployed, and managed cloud technologies at VirtualData that are essential for the efficient integration of diverse data sets and analysis techniques used by various observatories and detectors. Among several, the main goal of these projects within ACME is to contribute to the creation of a real-time ecosystem, where researchers can gain access to enhanced alert streams. This ecosystem will provide tools for managing and analyzing the streams, visualizing the data, and organizing follow-up observations based on near real-time detections.
Finally, to assist research teams in efficiently taking, analyzing, and interpreting multi-wavelength and multi-messenger observations, as well as coordinating efforts to observe the transient sky, it is essential to provide training across various domains. In this regard, IJCLab has been tasked to organize a series of workshops and transnational schools. Stay tuned!