Bonn 2020 – wissenschaftliches Programm

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EP: Fachverband Extraterrestrische Physik

EP 11: Astrophysics I

EP 11.3: Vortrag

Donnerstag, 2. April 2020, 17:00–17:15, H-HS VIII

3C 84/NGC 1275: Jet precession in 43 GHz data on sub-parsec scales — •Rune Dominik and Lena Linhoff — TU Dortmund

3C84, also known as NGC1275 and located in the Perseus galaxy cluster, is a radio galaxy, that has been observed at multiple energies by a variety of experiments for many years. Although well observed, some key properties of 3C84 remain unknown. One of this properties is the viewing angle, where a wide range of values can be found in literature. Recent studies have shown a precessing behavior of 3C84s jet on parsec scales in radio maps at 15 GHz. We analyzed this precessing behavior also on sub-parsec scales in 43 GHz data and found hints for an additional nutation. Using publicly available data from the VLBA-BU-BLAZAR Program, we focus on an open-source and reproducible analysis.

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