Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 60: Gamma astronomy 3
T 60.5: Vortrag
Mittwoch, 6. März 2024, 17:00–17:15, Geb. 30.22: kl. HS A
Insights into the broadband emission of TeV blazars during the first X-ray polarization measurements — •Lea Heckmann1,2, Axel Arbet-Engels1, Felix Schmuckermaier1, David Paneque1, and Ioannis Liodakis3,4 — 1Max-Planck-Institut für Physik, D-85748 Garching, Germany — 2Universität Innsbruck, Institut für Astro- und Teilchenphysik, Technikerstr. 25/8, 6020 Innsbruck, Austria — 3Finnish Centre for Astronomy with ESO, 20014 University of 1396 Turku, Finland — 4NASA Marshall Space Flight Center, Huntsville, AL 35812, USA
Blazars are prime objects to be studied in the current multi-messenger era and even though they have been investigated for decades, the underlying emission mechanisms are far from understood. In 2022, the first detection of X-ray polarization in blazars was obtained by IXPE, which opened a new window for probing blazar acceleration and radiation processes. In this contribution, we investigate the multiwavelength picture during the first IXPE observations of the two blazars Mrk 501 and Mrk 421, including data from the radio regime up to the very-high-energy (>0.1 TeV, VHE) γ-rays. We examine the X-ray polarization evolution, and compare it to various features in other wavebands including also, for the first time, the VHE band.
Keywords: Multiwavelength Studies; Blazars; Active Galactic Nuclei