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What is the Atacama Compact Array (ACA)? - Knowledgebase / General ALMA Queries - ALMA Science

What is the Atacama Compact Array (ACA)?

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The Atacama Compact Array (ACA), also known as the Morita Array, is composed of twelve closely spaced 7-meter antennas (7-m Array), and four 12-meter antennas for single dish observations (Total Power Array).  The array is designed to enhance wide-field imaging in full ALMA operations.  See Section "The Atacama Compact Array" of the ALMA Technical Handbook for more information.