doi.eso.org

• Massardi, Marcella [INAF–Institute of Radio Astronomy, ARC node, Bologna, Italy; International School for Advanced Studies (SISSA), Trieste, Italy]
• Stoehr, Felix [European Southern Observatory (ESO)]
• Bendo, George J. [Jodrell Bank Centre for Astrophysics, University of Manchester, UK]
• Bonato, Matteo [INAF–Institute of Radio Astronomy, ARC node, Bologna, Italy]
• Brand, Jan [INAF–Institute of Radio Astronomy, ARC node, Bologna, Italy]
• Galluzzi, Vincenzo [INAF–Astronomical Observatory of Trieste, Italy]
• Guglielmetti, Fabrizia [European Southern Observatory (ESO)]
• Knapic, Cristina [INAF–Astronomical Observatory of Trieste, Italy]
• Liuzzo, Elisabetta [INAF–Institute of Radio Astronomy, ARC node, Bologna, Italy]
• Marchili, Nicola [INAF–Institute of Radio Astronomy, ARC node, Bologna, Italy]
• Richards, Anita M. S. [Jodrell Bank Centre for Astrophysics, University of Manchester, UK]
• Rygl, Kazi L. J. [INAF–Institute of Radio Astronomy, ARC node, Bologna, Italy]

The Additional Representative Images for Legacy (ARI-L) project is a European Development project for ALMA Upgrade approved by the Joint ALMA Observatory and ESO in 2019. It aims to increase the legacy value of the ALMA Science Archive by bringing the reduction level of ALMA data from Cycles 2 to 4 close to that of data from more recent cycles processed for imaging with the ALMA Pipeline. To date, ARI-L has produced, assessed the quality of, and delivered more than 150000 images. These represent more than 85% of the science datasets from Cycles 2 to 4 processable with the ALMA Pipeline but lacking pipeline-generated images, and accordingly the project accomplished all its goals during its official runtime.