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APEX–SZ: The Atacama Pathfinder EXperiment: Sunyaev–Zel’dovich instrument

Schwan, D., Kneissl, R., Ade, Peter A. R., Basu, K., Bender, A., Bertoldi, F., Bohringer, H., Cho, H., Chon, G., Clarke, J., Dobbs, M., Ferrusca, D., Flanigan, D., Halverson, N., Holzapfel, W., Horellou, C., Johansson, D., Johnson, B., Kennedy, J., Kermish, Z., Klein, M., Lanting, T., Lee, A., Lueker, M., Mehl, J., Menten, K., Muders, D., Pacaud, F., Plagge, T., Reichardt, C., Richards, P., Schaaf, R., Schilke, P., Sommer, M., Spieler, H., Tucker, Carole, Weiss, A., Westbrook, B. and Zahn, O. 2012. APEX–SZ: The Atacama Pathfinder EXperiment: Sunyaev–Zel’dovich instrument. The Messenger 147 , pp. 7-12.

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Abstract

The APEX–SZ instrument was a millimetre- wave (150 GHz) cryogenic receiver for the APEX telescope designed to observe galaxy clusters via the Sunyaev– Zel’dovich Effect (SZE). The receiver contained a focal plane of 280 superconducting transition-edge sensor bolometers equipped with a frequency- domain-multiplexed readout system, and it played a key role in the introduction of these new, robust, and scalable technologies. With 1-arcminute resolution, the instrument had a higher instantaneous sensitivity and covered a larger field of view (22 arcminutes) than earlier generations of SZE instruments. During its period of operation from 2007 to 2010, APEX–SZ was used to image over 40 clusters and map fields overlapping with external datasets. This paper briefly describes the instrument and data reduction procedure and presents a cluster image gallery, as well as results for the Bullet cluster, Abell 2204, Abell 2163, and a power spectrum analysis in the XMM-LSS field.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: European Southern Observatory
Last Modified: 04 Jun 2017 04:09
URI: http://orca.cf.ac.uk/id/eprint/33756

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