ESO DOI Service

• Maud, Luke [European Southern Observatory (ESO)]
• Villard, Eric [European Southern Observatory (ESO); Joint ALMA Observatory, Santiago, Chile]
• Takahashi, Satoko [Joint ALMA Observatory, Santiago, Chile; National Astronomical Observatory of Japan, Santiago, Chile]
• Asaki, Yoshiharu [Joint ALMA Observatory, Santiago, Chile; National Astronomical Observatory of Japan, Santiago, Chile]
• Bastian, Tim [National Radio Astronomy Observatory, Charlottesville, USA]
• Cortes, Paulo [National Radio Astronomy Observatory, Charlottesville, USA; Joint ALMA Observatory, Santiago, Chile]
• Crew, Geoff [MIT Haystack Observatory, Westford, USA]
• Fomalont, Ed [National Radio Astronomy Observatory, Charlottesville, USA; Joint ALMA Observatory, Santiago, Chile]
• Hales, Antonio [National Radio Astronomy Observatory, Charlottesville, USA; Joint ALMA Observatory, Santiago, Chile]
• Ishii, Shun [Joint ALMA Observatory, Santiago, Chile; National Astronomical Observatory of Japan, Santiago, Chile]
• Matthews, Lynn [MIT Haystack Observatory, Westford, USA]
• Messias, Hugo [Joint ALMA Observatory, Santiago, Chile]
• Nagai, Hiroshi [National Astronomical Observatory of Japan, Tokyo, Japan]
• Sawada, Tsuyoshi [Joint ALMA Observatory, Santiago, Chile; National Astronomical Observatory of Japan, Santiago, Chile]
• Schieven, Gerald [National Research Council of Canada Herzberg Astronomy & Astrophysics Programs, Victoria, Canada]
• Shimojo, Masumi [National Astronomical Observatory of Japan, Tokyo, Japan]
• Vila-Vilaro, Baltasar [Joint ALMA Observatory, Santiago, Chile]
• Biggs, Andy [European Southern Observatory (ESO)]
• Petry, Dirk [European Southern Observatory (ESO)]
• Phillips, Neil [European Southern Observatory (ESO)]
• Paladino, Rosita [INAF–Institute of Radioastronomy, Bologna, Italy]

With each observing cycle at the Atacama Large Millimeter/submillimeter Array (ALMA) new features and observing modes are offered. Here we provide some background about how these new capabilities are tested and then made available to ALMA users. These activities help to drive the cutting-edge science conducted with ALMA and to maintain ALMA’s position as the foremost interferometric array operating at millimetre and submillimetre wavelengths. We focus in particular on opening up high-frequency observing using ALMA’s longest baselines, which offers the highest possible angular resolution.