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.

Array Recovery Status Update

Published: 25 Jan 2021

While the COVID-19 pandemic persists all around the world, ALMA staff at the JAO and in the regions continue to work towards bringing the array back online, with the ultimate goal to resume science operations and deliver high-quality science data to our users. At this moment, the ALMA antennas are in the process of being powered up and inspected after having been stowed for about 300 days. 

EU ARC CalMS service - already more than 500 MOUSs provided

Published: 19 Jan 2021

The EU ARC CalMS service provides calibrated MSs for ALMA archive data for all users who have difficulties generating the MSs on their own computers. The service is active since Oct 2019 and has so far provided more than 500 MOUSs to 87 different scientists in Europe.


I-TRAIN #4: ALMA WebLog inspection

Published: 15 Jan 2021

The I-TRAIN session in February will serve as a tutorial on the inspection of ALMA WebLogs. The session will be held online on Friday February 19, 2020, 11:00 CET [Zoom link][Calendar (.ics)]. WebLogs are produced by the ALMA pipeline and contain diagnostic information on data calibration and imaging.  This session will teach users how to interpret the WebLog information and how to use it to guide re-imaging ALMA data.

I-TRAIN #5: Simulating ALMA Observations with the OST

Published: 14 Jan 2021

The European ARC Network is offering an online training on simulating observations with the ALMA Observation Support Tool (OST) on Thursday March 11, 2021, 11:00 CET [Zoom link][Calendar (.ics)]. The OST allows users to test the effect of differing array configurations, frequency tunings, pointing strategies and weather conditions on imaging (2D or 3D) a sky-model of their choosing. 

ALMA Cycle 8 2021 Pre-Announcement

Published: 17 Dec 2020

The Joint ALMA Observatory (JAO) is planning to start the observations for Cycle 8 2021, in October 2021. A Call for Proposals (CfP) with detailed information on the new cycle is anticipated to be issued in March 2021 and the deadline for proposal submission will be in April 2021. The purpose of this pre-announcement is to highlight aspects of the CfP to assist with early planning. It also contains information related to the proposal review process. 

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