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The Arcminute Microkelvin Imager (AMI) is an interferometer radio telescope designed principally to image secondary anisotropies in the cosmic microwave background (CMB) at higher angular resolution than the Very Small Array. It consists of two interferometric arrays, the Small Array and the Large Array, sited at the Mullard Radio Astronomy Observatory in Cambridge (UK), both operating in the frequency range 12-18 GHz. The (short-baseline) Small Array consists of 10 3.7-m parabolic antennas while the long-baseline Large Array is composed of eight 13-m antennas. The two arrays have essentially identical receivers and back-end electronics.
The main goal of the project is to carry out a survey of clusters of galaxies via the Sunyaev-Zel'dovich effect (the scattering of the CMB off the hot gas in the cluster). AMI will also make very high-resolution observations of the primary CMB power spectrum.
See also
References
- AMI Consortium: Zwart et al., The Arcminute Microkelvin Imager, 2008, arΧiv:0807.2469.
- AMI Consortium, High-significance Sunyaev-Zel'dovich measurement: Abell 1914 seen with the Arcminute Microkelvin Imager, in Monthly Notices of the Royal Astronomical Society: Letters, vol. 369, 2006, pp. L1, DOI:10.1111/j.1745-3933.2006.00151.x, arΧiv:astro-ph/0509215.
- Arcminute MicroKelvin Imager official page, su mrao.cam.ac.uk. URL consultato il 18 ottobre 2006.
Further reading
- Michael Jones, SZ surveys with the Arcminute MicroKelvin Imager, 2001, arΧiv:astro-ph/0109351.
- Rüdiger Kneissl, et al., Surveying the sky with the Arcminute MicroKelvin Imager: expected constraints on galaxy cluster evolution and cosmology, in MNRAS, vol. 328, 2001, p. 783, DOI:10.1046/j.1365-8711.2001.04815.x, arΧiv:astro-ph/0103042.
Category:Cosmic Microwave Background Experiments Category:Cavendish Laboratory Category:Interferometric telescopes