ACBAR: The Arcminute Cosmology Bolometer Array Receiver

Details ACBAR: The Arcminute Cosmology Bolometer Array Receiver ACBAR: The Arcminute Cosmology Bolometer Array Receiver

2003-03-24

arxiv.org/abs/astro-ph/0303515v2

Astrophys.J.Suppl. 149 (2003) 265

Astronomy and Astrophysics

Astrophysics

59 pages, 16 figures -- updated to reflect version published in ApJS

Scientific paper

10.1086/379099

We describe the Arcminute Cosmology Bolometer Array Receiver (ACBAR); a multifrequency millimeter-wave receiver designed for observations of the Cosmic Microwave Background (CMB) and the Sunyaev-Zel'dovich effect in clusters of galaxies. The ACBAR focal plane consists of a 16-pixel, background-limited, 240 mK bolometer array that can be configured to observe simultaneously at 150, 220, 280, and 350 GHz. With 4-5' FWHM Gaussian beam sizes and a 3 degree azimuth chop, ACBAR is sensitive to a wide range of angular scales. ACBAR was installed on the 2 m Viper telescope at the South Pole in January 2001. We describe the design of the instrument and its performance during the 2001 and 2002 observing seasons.

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