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Universität zu Köln
Mathematisch-Naturwissenschaftliche Fakultät
Fachgruppe Physik

I. Physikalisches Institut

Workgroup of Prof. Dr. Andreas Eckart

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The research group of Prof. Andreas Eckart is a very international group with members from countries all over the world.
Our research is focused on the centers of galaxies and their interaction with the central supermassive black hole. On the one hand, we observe the center of our Galaxy, the Milky Way (see Galactic Center), on the other hand, we observe nearby Active Galaxies and analyze the properties of their host galaxies and their central regions (see e.g. LLQSO).
Modern research strongly depends on state-of-the-art observing facilities and instrumentation. Therefore, we are involved in instrumentation projects for the ESO-Very large telescope (GRAVITY), the Large Binocular Telescope (LINC-NIRVANA), and the James-Webb-Telescope (MIRI).

If you have questions about our research or if you are interested in a research project for a Bachelor, Master, or PhD-thesis, do not hesitate to contact us.


Cologne-Prague-Kiel meeting in Schloss Wahn 2016
We are happy to host this year's Cologne-Prague-Kiel meeting focused on the Galactic center and AGN physics. It will take place in Schloss Wahn (Köln-Porz) from November 30 to December 02. 

First results of the CARS project published: Starving Black Hole Returns Brilliant Galaxy to the Shadows

The Close AGN reference survey (CARS) is a subsample of the low-luminosity QSO sample that our group is studying for many years (previous results:
In the CARS project, a team of international researchers with participation of our group is investigating 40 low-luminosity QSOs in a multiwavelength approach.
As a seredipitous discovery, we found that Mrk 1018, a known changing-look quasar, changed its spectral type for the second time!
The results of this exciting study are published in two letters in Astronomy&Astrophysics:
Letter 1
Letter 2
and presented in an ESO press release.
Cologne-Prague meeting in Prague 2015
Our group is happy to participate at the Cologne-Prague meeting focused on the Galactic center and AGN physics: LINK:

Press release of the German Physical Society
(Deutsche Physikalische Gesellschaft, DPG)

The German Physical Society published a press release "Physik Konkret" that reports about our recent work on the Galactic Centre (in German). Link:
BCGS weekend seminar
Our group offers a workshop on "Supermassive Black Holes and their Host Galaxies" at the weekend seminar of the Bonn-Cologne Graduate School of Physics and Astronomy (BCGS) that takes place 17-19 April 2015 in Bad Honnef.

Best View Yet of Dusty Cloud Passing Galactic Centre Black Hole

VLT observations confirm that G2 survived close approach and is a compact object


Read the ESO press release about our recent work on the Dusty Cloud/Gascloud passing the Black Hole in the Galactic Centre!


ESO messenger article:
B. Shahzamanian, A. Eckart, M. Valencia-S., et al., "Variable and Polarised Near-infrared Emission from the Galactic Centre", Messenger No.159, pp 41-45, link

Contact information

Prof. Dr. Andreas Eckart

Telephone: (+49|0)221 / 470 - 3546
Fax: (+49|0)221 / 470 - 5162
E-mail: eckart


Consultation hours

upon agreement in Room 205 in the I. Institute of Physics, University of Cologne