High-Significance Sunyaev-Zel'dovich Measurement: Abell 1914 Seen With the Arcminute Microkelvin Imager
Description:
We report the first detection of a Sunyaev-Zel'dovich (S-Z) decrement with the Arcminute Microkelvin Imager (AMI). We have made commissioning observations towards the cluster A1914 and have measured an integrated flux density of -8.61 mJy in a uv-tapered map with noise level 0.19 mJy/beam. We find that the spectrum of the decrement, measured in the six channels between 13.5-18 GHz, is consistent with that expected for a S-Z effect. The sensitivity of the telescope is consistent with the figures…
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Date:
September 13, 2005
Creator:
Barker, Robert; Biddulph, Phillip; Bly, Dennis; Boysen, Roger; Brown, Anthony; Clementson, Christopher et al.
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UNT Libraries Government Documents Department