The ALMA Reginal Centre (ARC) provides user support for all levels of ALMA users. It also serves as a basis for public outreach and a training site that offers specialized courses, schools, and workshops to advance the knowledge of radio-interferometric techniques and science.

In addition to the general tasks of an ARC node, the German ARC node focusses on several specific areas of expertise including:

  • The development of advanced data analysis tools
  • Maintainance and upgrade of the Cologne Database for Molecular Spectroscopy (CDMS)
  • Polarization calibration and observation optimization
  • mm-VLBI with ALMA
For more background on the node, please go to 'About the German ARC node'.

Contact the German ARC node

German ARC node newsletter

If you wish to stay informed about the latest ALMA developments, calls for proposals, data releases, conferences/workshops and other information relevant to the German ALMA community, please join the mailing list or visit the mailing list archive. More information on the mailing list such as a short description and an alternative way of subscribing to it can be found here.

Recent News:

Call for Proposals for Cycle 3

The ALMA Cycle 3 call for proposals is out. For further information, please see

Long Baseline Campaign Science Verification Data released

Long baseline science verification datasets are now available. For further information, please see http://\sciann15011.html.

First announcement: German ALMA Community Days & Proposal Workshop 2015

With construction and basic commissioning of the Atacama Large Millimeter/submillimeter Array (ALMA) drawing to a close, the Joint ALMA Observatory (JAO) will issue a Call for Proposals for Cycle 3 on 24 March 2015. The deadline is expected to be on 23 April 2015, with observations starting in October 2015. To prepare the local astronomical community for Cycle 3, the German ARC node organizes the German ALMA Community Days & Proposal Workshop 2015 at the Argelander-Institut für Astronomie in Bonn on 25-27 March 2015. The first day will feature a brief introduction to the basic radio astromonical concepts and terminology for non-radio astronomers. On the second day, several talks will highlight recent scientific results obtained with ALMA, before ALMA's capabilities in Cycle 3, ALMA procedures, ALMA tools and the available help will be presented. The third day will be dedicated to hands-on work in workshops for novice users as well as for advanced users. During these workshops, participants can start to prepare their own ALMA proposals with technical support from experts.

ALMA Cycle 3 Pre-announcement

The Joint ALMA Observatory (JAO) will start the next cycle of observing (Cycle 3) in October 2015. For further information,please consult [pre-annoucement ...]

Exciting ALMA view of HL Tauri- new frontiers in protoplanetary discs

[06 November 2014] ALMA has opened up a spectacular and unprecedented view of a planet-forming disc. For further information, please consult [ESO news ...] and [Spiegel online ...]

Pre-announcement: German ALMA Community Days & Proposal Workshop 2015

[06 November 2014] The German ARC node is pleased to invite you to the German ALMA Community Days & Proposal Workshop 2015 at the Argelander Institute for Astronomy in Bonn on 26-27 March 2015.. For further information, please consult [more ...]

New release of ALMA Science Verification data

[08 September 2014] New Science verification data is available. For further information, please consult [more ...]

Course "Radio Interferometry: Methods and Science"

[26 February 2014] The German ARC node organizes a course on radio interferometry with lectures and tutorials at the Argelander-Institut für Radioastronomie in Bonn. [more ...]
More news about ALMA and the German ARC node can be found at the bottom of this page and in the menu on the left.


Within the framework of the ASTRONET programme, "Common Tools for Future Large Submillimeter Facilities", we have initiated a project, "Adaptable Radiative Transfer Innovations for Submillimeter Telescopes (ARTIST)", to develop a next generation model suite for comprehensive multi-dimensional radiative transfer calculations of the dust and line emission, as well as their polarization.
More information on the project can be found at the ARTIST homepage.


The CATS program ("Coherent Set if Astrophysical Tools for Spectroscopy") uses a flexible modeling tool (MAGIX) which provides a connection between existing numerical codes and model parameters. Many models, including non-astrophysical ones, can be incorporated to MAGIX so as to explore their parameter space. The CATS program was developed within the framework of ASTRONET at the University of Cologne.


The Cologne Database for Molecular Spectroscopy (CDMS) provides a molecular line catalogue in the millimeter and sub-millimeter frequency range, making a large database available to all users. It is part of the European project VAMDC (Virtual Atomic and Molecular Data Centre) and is maintained by the University of Cologne.

Practical Radio-Interferometry Lectures

A lecture series on practical issues of radio interferometry and a hands-on tutorial on data reduction with AIPS and CASA, was held from April to July 2014.


ALMA Update: End of Cycle 0 and start of Cycle 1
New server hardware for the German ARC node
ARTIST Radiative Transfer package released
Results of the Proposal Review Process released
New installment of Science Verification data
ESO Science Release eso1239: Surprising Spiral Structure around R Scl
International ALMA conference "The first year of ALMA science"
ALMA splinter meeting at the AG meeting in Hamburg
ALMA Cycle 1 Call for Proposals now closed
Third batch of Science Verification data available
Pre-announcement of ALMA Cycle 1 Science Observations
German ALMA Community Days 2012
Cycle 0 status report and timeline for Cycle 1
ALMA at the Germany-UK Astronomy Meeting and RAS National Astronomy Meeting
New Science Verification data released
Early Science has started!
ALMA at the meeting of the Astronomische Gesellschaft
ALMA Cycle 0 proposal assessment finished
New Science Verification Data Release
ALMA Cycle 0 proposal submission finished
First European antenna arrives to the AOS
ALMA Science Verification Data Release
ALMA Call for Proposals - Cycle 0
Plan for ALMA Early Science Cycle 0 and Science Verification