Towards the Event Horizon: High Resolution VLBI Imaging of Nuclei of Active Galaxies

  • T.P. Krichbaum
  • D.A. Graham
  • A. Witzel
  • J.A. Zensus
  • A. Greve
  • M. Grewing
  • M. Bremer
  • S. Doeleman
  • R.B. Phillips
  • A.E.E. Rogers
  • H. Fagg
  • P. Strittmatter
  • L. Ziurys
Conference paper
Part of the ESO Astrophysics Symposia European Southern Observatory book series (ESO)

Abstract

Very Long Baseline Interferometry at millimetre wavelengths (mm-VLBI) allows to image compact galactic and extragalactic radio sources with microarcsecond resolution, unreachable by other astronomical observing techniques. Future global VLBI at millimetre wavelengths therefore should allow to map,with a spatial resolution of only a few to a few ten gravitational radii, the direct vicinity of the Super Massive Black Holes (SMBH) located in the centres of nearby galaxies. With the reduced intrinsic self-absorption at short wavelengths, mm- VLBI opens a direct view onto the often jet-producing “central engine”.

Keywords

Event Horizon Nearby Galaxy Baseline Interferometry Active Galaxy Central Engine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer 2007

Authors and Affiliations

  • T.P. Krichbaum
    • 1
  • D.A. Graham
    • 1
  • A. Witzel
    • 1
  • J.A. Zensus
    • 1
  • A. Greve
    • 2
  • M. Grewing
    • 2
  • M. Bremer
    • 2
  • S. Doeleman
    • 3
  • R.B. Phillips
    • 3
  • A.E.E. Rogers
    • 3
  • H. Fagg
    • 4
  • P. Strittmatter
    • 4
  • L. Ziurys
    • 4
  1. 1.Max-Planck-Institut für RadioastronomieBonnGermany
  2. 2.Institut de Radioastronomie MillimétriqueGrenobleFrance
  3. 3.MIT-Haystack ObservatoryWestfordUSA
  4. 4.Steward ObservatoryUniversity of ArizonaTucsonUSA

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