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EP: Fachverband Extraterrestrische Physik

EP 7: Astrophysics

EP 7.6: Talk

Wednesday, March 23, 2022, 17:30–17:45, EP-H1

Modeling the leptonic origin of the low-frequency emission from blazar PKS 1502+106 — •Frederike Apel — Ruhr-Universität Bochum

In this work, we model the multi-wavelength emission from the blazar PKS 1502+106. This object is a candidate source of a high-energy neutrino observed by the IceCube experiment in 2019. We show that the emission from the source in the range from radio to infrared can be well explained by radiative (synchrotron) cooling of electrons accelerated in the relativistic jet. First, we show how simple analytical considerations can be used to obtain a rough estimate of the physical parameters of the source. Then, using time-dependent numerical simulations, we obtain a more accurate result that reproduces the observed spectral energy distribution. This result sheds light on the physical properties of the source, and can be used in the future to better constrain its nature as a hadronic accelerator.