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.

ALMA Cycle 5 Call for Proposals - Closed

Published: 21 Apr 2017

The Call for Proposals for ALMA Cycle 5 (October 2017 – September 2018) closed on 20 April 2017. Over 1700 proposals were received, the largest number of proposals so far. Included were also 24 proposals for Large Programmes, 16 proposals for VLBI observations, 41 proposals for solar observations, and 23 Target of Opportunity proposals.

Supplemental Call for Proposals to use the ALMA 7-m Array in Cycle 4 - Now Open

Published: 21 Apr 2017

7-m Array Supplemental Call for Cycle 4 is NOW OPEN!

The Joint ALMA Observatory (JAO) is now accepting observing proposals that request to use the 7-m Array in stand-alone mode for the remainder of Cycle 4. Instructions on how to submit proposals can be found on the 7-m Array Supplemental Call web page.  

Supplemental Call for Proposals to use the ALMA 7-m Array in Cycle 4

Published: 06 Apr 2017

The ALMA Director announces that the Joint ALMA Observatory (JAO) will accept observing proposals that request to use the 7-m Array in the remainder of Cycle 4, which ends on 30 September 2017. This proposal call enables the community to propose projects that will fill in undersubscribed regions of the observing queue for the 7-m Array. Up to 800 hours on the 7-m Array will be allocated through this opportunity.

ALMA Cycle 5 Call for Proposals is now open

Published: 21 Mar 2017

The ALMA Director, on behalf of the Joint ALMA Observatory (JAO) and the partner organizations in East Asia, Europe, and North America, is pleased to announce the ALMA Cycle 5 Call for Proposals (CfP) for scientific observations to be scheduled from October 2017 to September 2018.  The deadline is 20 April 2017, 15:00 UT.

ALMA Cycle 4 Science Operations resumes

Published: 02 Mar 2017

ALMA Cycle 4 (1 Oct 2016 – 30 Sept 2017) continues and PI observations will resume on 1 March 2017 after the "austral winter" engineering period through February. More information on the ALMA Status page.

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