Speaker
Description
Microquasars are galactic binary systems that exhibit relativistic jets
whose composition remains uncertain. If protons are present in situ,
neutrino production becomes possible. The relative proximity of
these systems and the evidence of their high-energy emissions
documented in the literature make neutrinos good candidates for
addressing the question of jet composition and identifying
microquasars as galactic cosmic ray accelerators.
KM3NeT/ORCA is a neutrino telescope capable of detecting such
neutrinos in the GeV to multi-TeV energy range. Located at the
bottom of the Mediterranean Sea near La Seyne-sur-Mer, France, it
began data collection in early 2020 and will continue throughout its
construction until it reaches full detection capability.
This study uses the full KM3NeT/ORCA dataset to look for neutrino
emission from microquasars. The analysis focuses on outburst
periods to reduce the atmospheric background, leveraging
wavelength observations, and employs machine-learning
techniques to filter out likely atmospheric events. Finally, the results
are compared with theoretical expected fluxes and other neutrino
experiments' upper limits.
| Contribution | Oral talk |
|---|---|
| Affiliation | Aix-Marseille Université, CPPM (Centre de Physique des Particules de Marseille) |
| magnani@cppm.in2p3.fr |
