European ARC Announcements

European ARC Announcements are provided by ESO and the European ALMA Nodes that together make up the European ALMA Regional Centre Network.

Registration open for Spanish ALMA Days

Published: 01 Oct 2024

Spanish ALMA days will take place on 18-20 February 2025 and will be hosted by the Instituto de Astrofisica de Canarias (IAC) in Tenerife, Spain.

LEGO ALMA and the German ARC Node at the AG meeting and the Highlights der Physik 2024

Published: 01 Oct 2024

Our interactive "LEGO ALMA" gives people an intuitive introduction to interferometry and ALMA's capabilities.

Band 2 receivers complete pre-production

Published: 27 Sep 2024

The Band 2 receiver project, led by ESO, has successfully concluded the pre-production phase. Full integration of the receivers will begin by November.

ALMA Cycle 11 Proposal Review Statistics

Published: 12 Sep 2024

A detailed report on the outcome of the ALMA Cycle 11 Proposal Review Process is now available. The report details the proposal review process, proposal statistics and regional distributions, as well as the proposal distribution across science categories and receiver bands.

The report can downloaded as a pdf document.

The highest priority Cycle 11 projects are listed at this link.

Astronomers track bubbles on star's surface in most detailed video yet

Published: 11 Sep 2024

For the first time, astronomers have captured images of a star other than the Sun in enough detail to track the motion of bubbling gas on its surface. The images of the star, R Doradus, were obtained with ALMA in July and August 2023. They show giant, hot bubbles of gas, 75 times the size of the Sun, appearing on the surface and sinking back into the star's interior faster than expected.

Read the full press release here.

Development study on ALMA uv coverage assessment completed

Published: 31 Aug 2024


A new development study has introduced new methods to assess and better schedule the ALMA uv coverage. Applying these methods will improve imaging quality for extended objects.

Contributed by Dirk Petry.

Video on ALMA's Wideband Sensitivity Upgrade released

Published: 28 Aug 2024

In June 2024, the ESO workshop "The Promises and Challenges of the ALMA Wideband Sensitivity Upgrade" was held in Garching to introduce all details of this ambitious upgrade project to the user community (see the announcement in July's newsletter). Following this and in an effort to further advertise this upgrade to the community and the public in general, ESO has just released the video "ALMA's extreme makeover: the Wideband Sensitivity Upgrade". You can watch the video here.

Contributed by Maria Diaz Trigo.

First Joint VLT/ALMA Observing Proposal successfully completed

Published: 12 Aug 2024

From Cycle 10, it has been possible to propose for joint VLT and ALMA observations. The first joint VLT/ALMA observing proposal has now been completed (prog ID 113.269Z, PI Benisty). Multi-epoch observations of a protoplanetary disc using VLT/SPHERE and ALMA revealed the suface and midplane layers of the disc. These observations aim to understand the mechanisms and timescale of cooling, which are critical to understanding disc evolution.

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