A highly magnetized twin-jet base pinpoints a supermassive black hole

Journal article
(Original article)

Publication Details

Author(s): Baczko AK, Schulz R, Kadler M, Ros E, Perucho M, Krichbaum TP, Boeck M, Bremer M, Großberger C, Lindqvist M, Lobanov AP, Mannheim K, Marti-Vidal I, Müller C, Wilms J, Zensus JA
Journal: Astronomy & Astrophysics
Publisher: EDP Sciences
Publication year: 2016
Volume: 593
ISSN: 1432-0746


Supermassive black holes (SMBH) are essential for the production of jets in radio-loud active galactic nuclei (AGN). Theoretical models based on (Blandford & Znajek 1977, MNRAS, 179, 433) extract the rotational energy from a Kerr black hole, which could be the case for NGC 1052, to launch these jets. This requires magnetic fields on the order of 10G to 10G. We imaged the vicinity of the SMBH of the AGN NGC 1052 with the Global Millimetre VLBI Array and found a bright and compact central feature that is smaller than 1.9 light days (100 Schwarzschild radii) in radius. Interpreting this as a blend of the unresolved jet bases, we derive the magnetic field at 1 Schwarzschild radius to lie between 200 G and ~ 8.3 × 10 G consistent with Blandford & Znajek models.

FAU Authors / FAU Editors

Baczko, Anne-Kathrin
Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut
Großberger, Christoph
Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut
Müller, Cornelia
Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut
Schulz, Robert
Dr.Karl-Remeis-Sternwarte Bamberg, Astronomisches Institut
Wilms, Jörn Prof. Dr.
Professur für Astronomie und Astrophysik

External institutions with authors

Chalmers University of Technology / Chalmers tekniska högskola
IRAM : Institut de Radioastronomie Millimétrique
Julius-Maximilians-Universität Würzburg
Max-Planck-Institut für Radioastronomie / Max Planck Institute for Radio Astronomy
University of València / Universitat de València

How to cite

Baczko, A.-K., Schulz, R., Kadler, M., Ros, E., Perucho, M., Krichbaum, T.P.,... Zensus, J.A. (2016). A highly magnetized twin-jet base pinpoints a supermassive black hole. Astronomy & Astrophysics, 593. https://dx.doi.org/10.1051/0004-6361/201527951

Baczko, Anne-Kathrin, et al. "A highly magnetized twin-jet base pinpoints a supermassive black hole." Astronomy & Astrophysics 593 (2016).


Last updated on 2019-29-04 at 09:53