Dr. Thomas P. Krichbaum
Astronomer in the
Address:
Max-Planck-Institut für Radioastronomie (MPIfR)
Auf dem Hügel 69
D-53121 Bonn
Germany
e-mail: tkrichbaum@mpifr-bonn.mpg.de
Tel: +49 (0)228 525 295
Fax: +49 (0)228 525 229
Office: Room E2.15
MAIN
WORK AND RESEARCH AREAS:
Compact Galactic and Extragalactic Radio Sources and their Jets
-
Image compact radio sources with highest possible angular resolution: The
GMVA
-
Structure and kinematics of relativistic jets, jet launching and formation, sub- and superluminal motion,
shocks and instabilities, jet propagation.
-
Direct imaging of nearby super-massive Black Holes (e.g. Sgr A*, M87, etc.)
-
Relation between flux density variability and structural evolution in the jet
(outburst-ejection relations)
-
Rapid variability of Active Galactic Nuclei (AGN, blazars) at all observable bands (radio- to Gamma-Rays, TeV):
The FGAMMA program.
PhD thesis applications are channeled through our International Max-Planck Research School portal
IMPRS, which also provides a good stipend.
A list of PhD projects is available here.
Don't hesitate to send an e-mail, if you have questions.
SPECIFIC
SOURCES
HIGH
RESOLUTION INTERFEROMETRY
- Very Long
Baseline Interferometry (VLBI) at centimeter wavelength (click
here) . See map of
radio-telescopes (click here).
- VLBI with
Satellites (click
here)
- Millimeter-VLBI
at 3mm:
The Global mm-VLBI array (GMVA) (click
here)
- The Challenge:
Millimeter-VLBI
at wavelengths shorter than 3mm
February 1999: A
first attempt for global VLBI at 1.3mm (click
here)
-
April 2003: First
transatlantic
fringes with Global VLBI at 1.3mm (230 GHz) (click
here)
-
May 2008: Size Determination of the Galactic Centre Source Sgr A* at 230 GHz
(click here)
-
May 2012: Transatlantic VLBI fringes to APEX with 28 micro-arcsecond resolution at 230 GHz:
MPIfR press release
and
ESO press release.
SINGLE
DISH MEASUREMENTS
- Intraday
Variability
(IDV) (click
here)
-
Variability of Active Galactic Nuclei (AGN) in Intensity and Polarization. See the
FGAMMA-program
-
The 100m radio-telescope in Effelsberg: Proposing, Characteristics, Performance etc. (click
here)
- The 86 GHz
receiver
of the 100 m telescope (click
here)
