Welcome to ALMA and the European ALMA Regional Centre!

ALMA (Atacama Large Millimeter/submillimeter Array) is the world's largest ground-based facility for observations in the millimeter/submillimeter regime located on the Chajnantor plateau, 5000 meters altitude in northern Chile. It enables transformational research into the physics of the cold Universe, probes the first stars and galaxies, and directly images the formation of planets. ALMA comprises a giant array of fifty 12-m antennas, which can be configured to achieve baselines up to 16 km. It is equipped with state-of-the-art receivers that cover all the atmospheric windows up to 1 THz. In addition, a compact array of 7-m and 12-m antennas greatly enhance ALMA's ability to image extended sources.

The European ALMA Regional Centre (ARC) provides the interface between the ALMA project and the European science community. It supports its users mainly in the areas of proposal preparation, observation preparation, data reduction, and data analysis.

Below you can read the latest Announcements from the European ARC Network.. More details and up-to-date information can be found in the News section and the ALMA Science Portal.

RadioNet: Calls for Financial Support - Deadline 1 July 2017

Published: 22 Jun 2017

RadioNet is a consortium of 28 institutions in Europe, the Republic of Korea and South Africa, integrating at European level world-class infrastructures for research in radio astronomy. RadioNet has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 730562, in order to perform a comprehensive, innovative and ambitious suite of actions that fosters a sustainable research environment.

The deadline for applications for financial support is 1 July 2017.

Fifth ALMA User Survey

Published: 01 Jun 2017

The fifth ALMA user survey was conducted between the 22 September and 24 October 2016. Overall, the users showed a relatively high level of satisfaction. On a scale of 1 to 5 (1 being best and 5 being worst), the overall satisfaction across all ALMA regions was generally rated ~2, or better, for all the topics. The complete ALMA User Satisfaction Survey is available.
The ALMA Observatory sincerely thanks all users who took the time to answer this survey and provide valuable comments.

Submillimetre/mm/cm QUESO Workshop 2017

Published: 30 May 2017

Submillimetre/mm/cm QUESO Workshop 2017:
Centimetre-Sub-Millimetre Q&U (and V) European Southern Observatory Workshop
ESO Garching, 25 – 27 October 2017

We are pleased to draw you attention to the workshop (still in the organising phase) Submillimetre/mm/cm QUESO Workshop 2017:
Centimetre-Sub-Millimetre Q&U (and V) European Southern Observatory Workshop.
The aim of the workshop is to bring together leading and potential future science users, observatory calibration experts and software developers from broad research fields including AGN, star-formation, solar observations, and CMB.

Report on ALMA Cycle 5 Proposal Submission

Published: 29 May 2017

The report on the ALMA Cycle 5 proposal submission statistics is now available. It provides a summary of items such as the number of submitted proposals and time requested, subscription rates, and comparisons with the number of hours requested in previous Cycles.

ALMA Long Baseline Workshop (2nd announcement)

Published: 29 May 2017

ALMA Long Baseline Workshop (2nd announcement)
Mielparque Kyoto, October 3-5, 2017


The Atacama Large Millimeter/Submillimeter Array (ALMA) is now the most powerful mm/submm interferometer in the world, and it is producing a total of > 500 refereed papers in nearly all fields of astronomy and astrophysics. In particular, the ~0.02” submm images obtained during the long baseline campaign in 2014 (ALMA Partnership et al. 2015) have led to numerous publication and followup observational and theoretical studies, signifying the extreme importance of the high resolution imaging capabilities of ALMA. 

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