RadioViews

Radio Astronomy / VLBI

RadioViews

RadioViews is a series of videos where fellow researchers present their results in compact form.

Video #5: Felix M. Pötzl on space-VLBI observations of the quasar 3C 345

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.

Probing the innermost regions of AGN jets and their magnetic fields with RadioAstron. IV. The quasar 3C 345 at 18 cm: Magnetic field structure and brightness temperature

F. M. Pötzl, A. P. Lobanov, E. Ros, J. L. Gómez, G. Bruni, U. Bach, A. Fuentes, L. I. Gurvits, D. L. Jauncey, Y. Y. Kovalev, E. V. Kravchenko, M. M. Lisakov, T. Savolainen, K. V. Sokolovsky, and J. A. Zensus
Astronomy & Astrophysics, 648 (2021) A82
Published online: 14 April 2021
DOI: 10.1051/0004-6361/202039493

Video #4: Thalia Traianou on the localisation of the γ-ray emitting region in the blazar TXS 2013+370

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.

Localizing the γ-ray emitting region in the blazar TXS 2013+370

E. Traianou, T. P. Krichbaum, B. Boccardi, R. Angioni, B. Rani, J. Liu, E. Ros, U. Bach, K. V. Sokolovsky, M. M. Lisakov et al. (3 more)
Astronomy & Astrophysics, 634 (2020) A112
Published online: 19 February 2020
DOI: 10.1051/0004-6361/201935756

Video #3 - Joana Kramer on 3D relativistic magnetohydrodynamic simulations of AGN to study their polarisation properties

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“.

Video #2: Jae-Young Kim on the First Event Horizon Telescope Images of a Black-Hole Powered Jet in the Quasar 3C 279

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.

Event Horizon Telescope imaging of the archetypal blazar 3C 279 at an extreme 20 microarcsecond resolution

Jae-Young Kim, Thomas P. Krichbaum, Avery E. Broderick, Maciek Wielgus, Lindy Blackburn, José L. Gómez, Michael D. Johnson, Katherine L. Bouman, Andrew Chael, Kazunori Akiyama et al. (343 more)
Astronomy & Astrophysics, 640 (2020) A69
Published online: 12 August 2020
DOI: 10.1051/0004-6361/202037493

First Event Horizon Telescope Images of a Black-Hole Powered Jet

Related Press Release, April 07, 2020: Something is Lurking in the Heart of 3C 279

April 07, 2020

First Event Horizon Telescope Images of a Black-Hole Powered Jet [more]

Video #1: Dr. Bia Boccardi on the TeV emitting galaxy 3C 264

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.

The TeV-emitting radio galaxy 3C 264 - VLBI kinematics and SED modeling

B. Boccardi, G. Migliori, P. Grandi, E. Torresi, F. Mertens, V. Karamanavis, R. Angioni and C. Vignali
Astronomy & Astrophysics, 627 (2019) A89
Published online: 04 July 2019
DOI: 10.1051/0004-6361/201935183

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