26–28 Feb 2025
DESY
Europe/Berlin timezone
The meeting is organized as a hybrid event.

Lepto-hadronic modelling of neutrino-candidate blazar 5BZB J1150+2417

26 Feb 2025, 16:39
18m
Building C, Seminar Room CTAO (DESY)

Building C, Seminar Room CTAO

DESY

Platanenallee 6, 15738 Zeuthen
Talk Session 2

Speaker

Leonard Pfeiffer (Julius-Maximilians-Universität Würzburg)

Description

Recent observations highlight the importance of active galactic nuclei (AGN) in the context of high-energy neutrino production.
The focus of this study is 5BZB J1150+2417, which was recently proposed as associated with neutrino emission during the first $9$-yrs of IceCube observations among other blazar-type sources.
To test the proposed neutrino-blazar association we perform a theoretical modelling study of radiative processes.
Modelling the quasi-simultaneous, broad-band spectral energy distributions, we test various methods from purely leptonic to lepto-hadronic models with external photon fields to fit the observations.
Historically, 5BZB J1150+2417 is classified as a BL Lac source.
However, our results find a spectral shape in the $\gamma-$ray emission, that suggests a deviation from the log-parabolic double hump structure, typical for these objects.
Our lepto-hadronic models predict a low neutrino production rate, although at reach of the IceCube neutrino detector over 10 years.

Primary authors

Leonard Pfeiffer (Julius-Maximilians-Universität Würzburg) Margot Boughelilba (Z_GA (Gammaastronomie))

Co-authors

Alessandra Azzollini (Z_GA (Gammaastronomie)) Jose Maria Sanchez Zaballa (Z_GA (Gammaastronomie)) Sara Buson (Z_GA (Gammaastronomie))

Presentation materials