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Allen telescope update
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Author | Message |
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Martin Andersen Send message Joined: 3 Apr 99 Posts: 19 Credit: 62,461 RAC: 0 |
Observations have finally started. Nice article at: http://cosmiclog.msnbc.msn.com/archive/2009/06/11/1961676.aspx |
Sir Ulli Send message Joined: 21 Oct 99 Posts: 2246 Credit: 6,136,250 RAC: 0 |
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tullio Send message Joined: 9 Apr 04 Posts: 8797 Credit: 2,930,782 RAC: 1 |
The only fact given is the antenna diameter which results in 40 meters, much less than Arecibo, and obviously this means a smaller resolving power. Other important parameters are the frequency searched, the bandwidth around it and the coordinates of the possible sources. These can be varied more easily from an array such as Allen or ALMA. All these parameters are described in an article on Serendip on the Arecibo Observatory home page and also given in the SETI home page. I would say that, all limitations withstanding, Arecibo is still a more powerful observing tool. Tullio |
Clyde C. Phillips, III Send message Joined: 2 Aug 00 Posts: 1851 Credit: 5,955,047 RAC: 0 |
Those Allen dishes are probably stretched out over an area of much more than 40 meters diameter so they can act as an interferometer of high resolving power. However if their total area equals that of a 40-meter dish their sensitivity would be much less than that of Arecibo. |
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