ALMA Announces Observatory Project for Configurations 8, 9 and 10

The ALMA Observatory announces one filler program that has been approved on the main array. The program is designed to fill a potential gap in the 12-m Array observing schedule in Configurations 8, 9 and 10 at LST=21 to 1 h, based on input  from scientists at the Joint ALMA Observatory (JAO) and the ALMA Regional Centers (ARCs). The proposed program was reviewed by the Integrated Science Team led by the Observatory Scientist, and approved by the ALMA Director.

As described in the Principles of the ALMA Proposal Review Process https://almascience.org/documents-and-tools/cycle9/principles-review-process, Observatory Projects were initiated after verifying that the gaps in the observing queue could not be filled by any Principal Investigator (PI) submitted proposal. The Observatory Project will be awarded Grade C and the data will have no proprietary period. While submitted as a DDT project, this project will not be charged against the 5% allocation of DDT time.

The data from this project will be quality assessed by the JAO and released through the ALMA Archive with no proprietary period. Observing priority will be given to any remaining PI science projects and activities to commission new capabilities on the array. The release of any Observatory Project data will be preceded by an announcement on the Science Portal.

The approved project is:

• 2024.A.00047.S  An ALMA Band 1 Survey of the Hubble Deep Field South