German ARC staff

The people currently involved in the German node of the ALMA Regional Centre are listed below. The email addresses can be found here.


Frank Bertoldi

Frank Bertoldi ARC node representative

Professor at the Argelander Institute for Astronomy at the University of Bonn

Phone: +49 (0)228 - 73 - 6789
Fax: +49 (0)228 - 73 - 1775

Research Interests: My currrent research focuses on the formation of stars, galaxies, and massive black holes in the early Universe, and on a project to constrain structure formation and cosmological parameters (primordial density spectrum, dark energy) by means of a Sunyaev-Zel'dovich galaxy cluster survey. My minor interests cover molecular cloud structure, star formation, Kuiper belt objects, comets, PDRs, and gamma-ray bursts.

Stefanie Mühle

Stefanie Mühle ARC node manager

mmVLBI, user support, training, outreach

Phone: +49 (0)228 - 73 - 3662
Fax: +49 (0)228 - 73 - 1775

Research Interests: properties of the molecular gas in extreme environments like galaxy mergers, starburst galaxies, and near AGN, and in more "normal" nearby galaxies (observations, non-LTE modelling); star formation and feedback; the ISM in the Galactic center; Galactic masers; magnetic fields in nearby galaxies

Reinhold Schaaf

Reinhold Schaaf Staff

IT support, user support

Phone: +49 (0)228 - 73 - 3668
Fax: +49 (0)228 - 73 - 1775

Research Interests: Software development for radio astronomy: Radiative transfer (ARTIST), bolometer analysis software (BoA), control software for single dish telescopes (APECS, NANTEN2).

Toma Badescu

Toma Badescu PhD student

user support

Phone: +49 (0)228 - 73 - 5657
Fax: +49 (0)228 - 73 - 1775

Research interests: I am working on observing extragalactic (mm) radio recombination lines in (U)LIRGS and trying to determine if they are a reliable marker for star-formation.

Christos Karoumpis

Christos Karoumpis PhD student


Phone: +49 (0)228 - 73 - 3670
Fax: +49 (0)228 - 73 - 1775

Research interests: formation and evolution of high-redshift galaxies, interstellar and intergalactic medium during the Epoch of Reionization, line-intensity mapping


Peter Schilke

Peter Schilke ARC node affiliate

Professor for experimental astrophysics at the I. Physikalische Institut in Cologne

Phone: +49 (0)221 - 470 - 1935
Fax: +49 (0)221 - 470 - 5162

Research interests: formation of massive stars, astrochemistry and formation of molecular clouds, articularly on the modeling of observing data. I am Project leader of Projects A6 and C3 in the new SFB 956, co-I of Herschel/HIFI and have been involved there in the GT KPs HEXOS and CHESS. From 1997 to 2010 I have been member of various ALMA committees, among the Science Software Requirements, ESAC and ASAC and various review committees.

Thomas Möller

Thomas Möller Postdoc

spectral line identification

Phone: +49 (0)221 - 470 - 3490
Fax: +49 (0)221 - 470 - 5162

Research interests: modeling of observing data; development of a program (MAGIX) which provides a framework to easily interface existing codes to an iterating engine that allows automatic minimizations to constrain model parameters and provide error estimates

Holger Mueller

Holger Mueller Postdoc


Phone: +49 (0)221 - 470 - 4528
Fax: +49 (0)221 - 470 - 5162

Research interests: astrochemistry, star-formation, molecules in space, rotational, rovibrational, interactions, hyperfine structure, data reliability (in the lab, in astro observations, in databases)