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A Highly Magnetized Twin-Jet Base Pinpoints a Supermassive Black Hole
- Source :
- A&A 593, A47 (2016)
- Publication Year :
- 2016
-
Abstract
- Supermassive black holes (SMBH) are essential for the production of jets in radio-loud active galactic nuclei (AGN). Theoretical models based on Blandford & Znajek extract the rotational energy from a Kerr black hole, which could be the case for NGC1052, to launch these jets. This requires magnetic fields of 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, 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 ~80000 G consistent with Blandford & Znajek models.<br />Comment: 8 pages, 7 figures, accepted by Astronomy & Astrophysics
Details
- Database :
- arXiv
- Journal :
- A&A 593, A47 (2016)
- Publication Type :
- Report
- Accession number :
- edsarx.1605.07100
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1051/0004-6361/201527951