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.

Announcement from ALMA director on observatory priorities during WSU implementation

Published: 29 Nov 2023

The ALMA Director, Sean Dougherty, would like to share the following statement on observatory priorities during implementation of the Wideband Sensitivity Upgrade (WSU).

Joint ALMA + JWST Science Day in the Netherlands

Published: 29 Nov 2023

Allegro announces its first Joint ALMA + JWST Science Day, which will take place at Kapteyn Institute in Groningen on 30 January 2024. The Science Day aims to bring together members of The Netherlands astronomy community where we highlight the latest scientific results obtained with ALMA and JWST, with a particular emphasis on projects that make use of both. The meeting will also allow ample time to discuss user experiences and will have talks on news and updates for both ALMA and JWST. Registration for contributed talks is now open (registration formdeadline: 8 January 2024).

Release of Solar Full Polarization ALMA Test Data

Published: 28 Nov 2023

ALMA has released data acquired as part of the Extension and Optimization of Capabilities effort (EOC). The data were used to test, implement, and determine the accuracy of the solar full-polarization observing mode of ALMA. 

The data are available here (please refer to the readme file at each of these locations for information on the content of the files):

Release of Science Verification Data for W51 in Band 1

Published: 28 Nov 2023

The Science Verification data for W51 observed on 25 March 2023 and 4 April 2023 are now available on the Science Portal. The data were obtained in the observations of spectral lines (CS, SiO, CH3OH, and SO2) and continuum in Band 1, with the total on-source time of about 70 minutes.

I-TRAIN #20: 3D Data Visualisation with FRELLED

Published: 27 Nov 2023

The European ARC Network invites users to an introduction to data visualisation using FRELLED, on December 8th, 11:00 CET [Zoom]. FRELLED is a new FITS viewer designed to explore 3D spectral line data and assist with visual source extraction and analysis, using the artistic software Blender.

Quick Links