Galaxies 2016, 4(3), 32; doi:10.3390/galaxies4030032
Exploring the Magnetic Field Configuration in BL Lac Using GMVA
Bindu Rani 1,2,†,*
, Thomas Krichbaum 2, Jeff A. Hodgson 3, Shoko Koyama 2, Anton J. Zensus 2, Lars Fuhramnn 2, Alan Marscher 4
and Svetlana Jorstad 4
and Svetlana Jorstad 41
NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA
2
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, Bonn 53121, Germany
3
Korea Astronomy and Space Institute, 776 Daedeokdae-ro, Yuseong-gu, Daejeon 34055, Korea
4
Institute for Astrophysical Research, Boston University, 725 Commonwealth Avenue, Boston, MA 02215, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Emilio Elizalde
Received: 15 July 2016 / Revised: 9 September 2016 / Accepted: 13 September 2016 / Published: 20 September 2016
(This article belongs to the Special Issue Blazars through Sharp Multi-wavelength Eyes)
Abstract
The high radio frequency polarization imaging of non-thermal emission from active galactic nuclei (AGN) is a direct way to probe the magnetic field strength and structure in the immediate vicinity of supermassive black holes (SMBHs) and is crucial in testing the jet-launching scenario. To explore the the magnetic field configuration at the base of jets in blazars, we took advantage of the full polarization capabilities of the Global Millimeter VLBI Array (GMVA). With an angular resolution of ∼50 micro-arcseconds (μas) at 86 GHz, one could resolve scales up to ∼450 gravitational radii (for aKeywords:
active galaxies; BL Lacertae object: BL Lac; jets; GMVA; high-resolution VLBI; magnetic field; polarization
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Figure 1
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Rani, B.; Krichbaum, T.; Hodgson, J.A.; Koyama, S.; Zensus, A.J.; Fuhramnn, L.; Marscher, A.; Jorstad, S. Exploring the Magnetic Field Configuration in BL Lac Using GMVA. Galaxies 2016, 4, 32.
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