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A Highly Magnetized Twin-Jet Base Pinpoints a Supermassive Black Hole
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Baczko, A.K.; Schulz, R.; Kadler, Matthias; Ros Ibarra, Eduardo; Perucho Pla, Manuel; Krichbaum, T. P.; Böck, M.; Bremer, M.; Grossberger, C.; Lindqvist, M.; Lobanov, A.P.; Mannheim, K.; Martí Vidal, Iván; Müller, C.; Wilms, J.; Zensus, J. Anton
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This document is a artículoDate2016
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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 103G to 104G. 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 × 10e4 G consistent with Blandford & Znajek models. |
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