6533b881fe1ef96bd12d7bf3
RESEARCH PRODUCT
Pinpointing the SMBH in NGC1052
Baczko A.-k.Schulz R.Kadler M.Ros E.Perucho M.Krichbaum T.p.Bock M.Bremer M.Grossberger C.Lindqvist M.Lobanov A.p.Mannheim K.Marti-vidal I.Mueller C.Wilms J.Zensus J.a.subject
galactic and extragalactic astronomyAstrophysics and AstronomyActive galactic nucleihigh energy astrophysicsPhysicsAstrophysics::High Energy Astrophysical PhenomenaAstrophysics::Instrumentation and Methods for AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsGalaxiesComputer Science::Digital Librariesobservational astronomyGeneral Relativity and Quantum CosmologyRadio galaxiesNatural SciencesAstrophysics::Galaxy AstrophysicsVery long baseline interferometrydescription
Supermassive black holes (SMBH) are essential for the production of jets in radio-loud active galactic nuclei (AGN). Theoretical models based on Blandford & Znajek (1977MNRAS.179..433B) 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 1000G to 10000G. 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 200G and ~83000G consistent with Blandford & Znajek (1977MNRAS.179..433B) models. Cone search capability for table J/A+A/593/A47/list (List of FITS images)
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-01-01 |