Dec 11 – 15, 2023
Tsung-Dao Lee Institute
Asia/Shanghai timezone

High-energy non-thermal emission from local young massive stellar clusters

Dec 13, 2023, 2:30 PM
Hall # 1

Hall # 1

Contributed talk in mini symposium Astroparticle


Silvia Celli (Sapienza Università di Roma)


Cosmic ray acceleration up to PeV energies has been suggested to take place in massive and young stellar clusters. The formation of a strong termination shock driven by the collective action of stellar winds in a compact cluster offers a promising location where efficient particle acceleration might take place. The subsequent interactions of these particles with target gas result into hadronic gamma-ray and neutrino production: in particular, if dense clouds are located within and around clusters, enhanced emission is expected. Within a scenario of particle acceleration at the cluster wind termination shock, we compute the emerging multi-messenger signals from local star clusters observed by Gaia, as well as from the nearby illuminated molecular clouds reported in Miville-Deschenes catalog. We further evaluate detection prospects of these signals.

Primary author

Silvia Celli (Sapienza Università di Roma)


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