弧分宇宙学辐射热计阵列接收器英语Arcminute Cosmology Bolometer Array Receiver,简称ACBAR),是一项测量宇宙微波背景各向异性的实验。在2000年~2008年很活跃。

ACBAR 145千兆赫兹测量是当时宇宙微波背景最精确的高多极测量。

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