2016A&A...593A..47B

Query : 2016A&A...593A..47B

2016A&A...593A..47B - Astronomy and Astrophysics, volume 593A47-47 (2016/9-1)

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

BACZKO A.-K., SCHULZ R., KADLER M., ROS E., PERUCHO M., KRICHBAUM T.P., BOECK M., BREMER M., GROSSBERGER C., LINDQVIST M., LOBANOV A.P., MANNHEIM K., MARTI-VIDAL I., MUELLER C., WILMS J. and ZENSUS J.A.

Abstract (from CDS):

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 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 200G and ∼8.3x104G consistent with Blandford & Znajek models.

Abstract Copyright: © ESO, 2016

Journal keyword(s): magnetic fields - galaxies: active - galaxies: jets - galaxies: magnetic fields - galaxies: nuclei

VizieR on-line data: <Available at CDS (J/A+A/593/A47): list.dat fits/*>

Simbad objects: 8

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Number of rows : 8
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
2 NGC 1052 Bla 02 41 04.79849989 -08 15 20.7519527 11.84 11.41 10.47 10.71   ~ 1397 2
3 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 15.50 14.27   ~ 1388 1
4 PG 0851+202 BLL 08 54 48.8749846272 +20 06 30.639583620   15.649 15.146 15.446   ~ 2513 1
5 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
6 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
7 QSO B1830-211 Bla 18 33 39.9399138048 -21 03 39.368838780     18.70 21   ~ 724 1
8 4C 11.69 Bla 22 32 36.40890093 +11 43 50.9040592   17.75 17.33     ~ 1205 2

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