RadioViews

Welcome to the ninth episode of RadioViews! In this video series, we discuss with fellow astronomers about their latest science projects. Dr. Anne Baczko is a postdoc at Chalmers in the Astronomy and Plasma Physics, Space, Earth and Environment department. She studies AGN jets, in particular investigating: the jet-width at various scales, the spectral index along the expanding jet structure, and the collimation region of jets. She is an expert on multi-wavelength, multi-epoch observations with multiple interferometric surveys. As a part of the Event Horizon Telescope collaboration and M2Finders, she further studies the innermost region in AGN down to the shadow of the supermassive black hole.


Media Credits : Baczko, A.-K., “Ambilateral collimation study of the twin-jets in NGC 1052”, Astronomy and Astrophysics, vol. 658, 2022. doi:10.1051/0004-6361/202141897 Event horizon telescope and Veritasium © Online Learning College 2023 Aurore Simonnet and NASA’s Goddard Space Flight Center NRAO/AUI/VLA

 

Special episode of RadioViews!
This time we have insight information, emotional thoughts, and exciting scientific news collected by the Event Horizon Telescope (EHT) Collaboration members at the Max Planck Institute for Radio Astronomy in Bonn, Germany. It has been a great, devoting journey since Sagittarius A* was observed by the EHT in 2017. Our colleagues tell their side of the story.
Created by Ms. Joana Kramer and Mr. Luca Ricci
 

Dr. Gunther Witzel is a scientist in the VLBA group at the Max Planck Institute for Radio Astronomy. He studies the Galactic Center since 2007, in particular processes in the immediate surrounding of the supermassive black hole, as well as stellar orbits and the mysterious, gaseous objects G1 and G2. He also has contributed to a better technical understanding of the near-infrared telescopes used for these studies.

Luca Ricci is an international Max Planck Research School PhD candidate. His research focuses on the amazing radio galaxy NGC 315. On that, the wants to study the jet formation processes in radio galaxies on sub-pc/pc scales and their evolution within the external medium.

Dr. Mikhail Lisakov, staff member at the Radio Astronomy/VLBI department of the MPIfR, carries out research with focus on relativistic jets from active galactic nuclei which could provide answers to questions ranging from galaxy evolution to neutrino production.  To study Faraday rotation, he developed a model for the jet–sheath system in 3C273 where the sheath is wider than the single-epoch narrow relativistic jet. 

Dr. Felix Pötzl, recently graduated at the Univ. of Cologne in the framework of the International Max Planck Research School (IMPRS) for Astronomy and Astrophysics, presents his PhD project, at which he focused on high-resolution, polarimetric space-VLBI observations of the quasar 3C 345.

Dr. Thalia Traianou successfully finished her Ph.D. under the supervision of Dr. Thomas Krichbaum at the Max Planck Institute for Radio Astronomy as a member of the International Max Planck Research School (IMPRS) for Astronomy and Astrophysics in 2020. Her Ph.D. project focused chiefly on the structural evolution and polarization variability of the blazars TXS 2013+370 and 3C 454.3 using VLBI imaging at the ultra-high angular resolution.

Ms. Joana Kramer is a Ph.D. candidate at the Max Planck Institute for Radio Astronomy and a member of the International Max Planck Research School (IMPRS) for Astronomy and Astrophysics. Her research interests cover 3D relativistic magnetohydrodynamic simulations of AGN as well as imaging and studying the (circular) polarization of both the simulations and observational data. Under the supervision of Prof. Eduardo Ros and Dr. Nicholas MacDonald she studies „Very Long Baseline Array Imaging of a TANAMI Active Galactic Nuclei“ and „Extragalactic Jets – Relativistic Magnetohydrodynamic Simulations & Ray-Tracing“.

Dr. Jae-Young Kim, former post-doctoral researcher at the Max Planck Institute for Radio Astronomy and at present staff scientist at the  Korea Astronomy and Space Science Institute (KASI), studies the formation and the phenomenology of relativistic jets ejected from supermassive black holes using state-of-art observational techniques, as VLBI observations with the Event Horizon Telescope.

Dr. Bia Boccardi, Otto Hahn Group leader at the MPI für Radioastronomie, describes her recent work on the study of the galaxy 3C 264.  This was published on July 4th, 2019 at the Volume 627 of the Astronomy & Astrophysics journal, see below.