3-7 noviembre 2025
Europe/Madrid timezone

Multi-wavelenght view of 3C 279 during the 2017-2018 EHT campaigns including an unprecedented gamma-ray flare

5 nov. 2025 15:45
15m
Salón de Actos (ADEIT)

Salón de Actos

ADEIT

Talk Gamma rays Gamma Rays

Ponente

Giacomo Principe (INFN Trieste - University of Trieste)

Descripción

Spinning super-massive black holes at the centers of galaxies can launch powerful magnetized jets. 3C 279 is an archetypal blazar with a prominent radio jet that undergoes broadband emission variability. In April 2017 and April 2018, the Event Horizon Telescope (EHT) observed 3C 279 with an unprecedented angular resolution of 20 micro-arcseconds. In parallel, an extensive quasi-simultaneous multi-wavelength (MWL) campaign was conducted using both ground- and space-based observatories, covering frequencies from radio wavelengths to the TeV energy range. Here, we present preliminary results from the first two EHT-MWL observational campaigns, including the detection of a record-breaking gamma-ray flaring episode. Additionally, we provide initial interpretations based on the modeling of 3C 279's time-variable broadband emission and polarization using the Turbulent Extreme Multi-Zone numerical framework.

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