Non-thermal emission from local young massive star clusters and detection prospects with current and next generation instruments
Celli S, Mitchell A, Morlino G, Menchiari S (2025)
Publication Type: Conference contribution
Publication year: 2025
Journal
Publisher: Sissa Medialab Srl
Book Volume: 501
Conference Proceedings Title: Proceedings of Science
Event location: Geneva
DOI: 10.22323/1.501.0598
Abstract
Young and massive star clusters have been proposed as potential sources of cosmic rays reaching PeV energies, offering a complementary perspective to the supernova remnant scenario. The collective action of stellar winds in a compact cluster creates a strong wind termination shock, which may accelerate particles efficiently over million-year timescales. Supernova remnants within the cluster cores contribute an additional, eventually dominant, energy source. The subsequent hadronic interactions of these accelerated particles produce gamma rays and neutrinos. Using a model that accounts for both wind termination shock and supernova remnant contributions, we calculate the expected flux of secondary particles from the local star clusters identified by the Gaia satellite. We assess their detectability with current and next-generation observatories, including CTAO, LHAASO, and KM3NeT, employing detailed sensitivity curves for extended sources.
Authors with CRIS profile
Involved external institutions
Università degli studi "La Sapienza"
Italy (IT)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Italy (IT)
Institute of Astrophysics of Andalusia / Instituto de Astrofísica de Andalucía (IAA-CSIC)
Spain (ES)
Italy (IT)
National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF)
Italy (IT)
Institute of Astrophysics of Andalusia / Instituto de Astrofísica de Andalucía (IAA-CSIC)
Spain (ES)
How to cite
APA:
Celli, S., Mitchell, A., Morlino, G., & Menchiari, S. (2025). Non-thermal emission from local young massive star clusters and detection prospects with current and next generation instruments. In Proceedings of Science. Geneva, CH: Sissa Medialab Srl.
MLA:
Celli, S., et al. "Non-thermal emission from local young massive star clusters and detection prospects with current and next generation instruments." Proceedings of the 39th International Cosmic Ray Conference, ICRC 2025, Geneva Sissa Medialab Srl, 2025.
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