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A highly magnetized twin-jet base pinpoints a supermassive black hole
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- Baczko, A. K. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Julius-Maximilians Universität Würzburg,University of Würzburg,Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
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- Schulz, R. (author)
- Julius-Maximilians Universität Würzburg,University of Würzburg,Netherlands Institute for Radio Astronomy (ASTRON),Friedrich-Alexander-Universität Erlangen Nurnberg (FAU)
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- Kadler, M. (author)
- Julius-Maximilians Universität Würzburg,University of Würzburg
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- Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) Julius-Maximilians Universität Würzburg (creator_code:org_t)
- 2016-09-13
- 2016
- English.
- In: Astronomy and Astrophysics. - : EDP Sciences. - 0004-6361 .- 1432-0746. ; 593
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- 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 NGC1052, to launch these jets. This requires magnetic fields on the order of 10(3) G to 10(4) G. We imaged the vicinity of the SMBH of the AGN NGC1052 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 similar to 8.3 x 10(4) G consistent with Blandford & Znajek models.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- magnetic fields
- galaxies: magnetic fields
- galaxies: jets
- galaxies: active
- galaxies: nuclei
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Baczko, A. K.
- Schulz, R.
- Kadler, M.
- Ros, Eduardo
- Perucho, M.
- Krichbaum, T. P.
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- Bock, M.
- Bremer, M.
- Grossberger, C.
- Lindqvist, Micha ...
- Lobanov, A. P.
- Mannheim, K.
- Marti-Vidal, Iva ...
- Muller, C.
- Wilms, J.
- Zensus, A.J.
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- Chalmers University of Technology
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