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RATAN-600 as a MM-Array

  • Yu.N. Parijskij (a1), G.A. Pinchuk (a1), O.V. Verkhodanov (a1), V.B. Khaikin (a1), Yu.K. Zverev (a1) and G.V. Zhekanis (a1)...

Abstract

It is shown that multi-elements surface of the Russian biggest reflector may be considered as a 1000-element array with limited freedom of motions of each element. This limitation may be compensated by selection of the proper “virtual sub-array” of elements at any given direction of observations. This approach is especially effective for mm-waves where field of view of 600-meter reflector in usual mode is less than 1 arcsec. The present stage of realization of that project is shortly discussed, including requirements for multi-feed system near the focal plane of the radio telescope, wavelength limitations and error budget, and near field zone 3-dimensional synthesis mode of observation.

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Copyright

References

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Cornwell, T. 1989. Wide field imaging III: Mosaicing. Synthesis Imaging in Radio Astronomy. A Collection of Lectures from the Third NRAO Synthesis Imaging Summer School, pp.277286. Edited by Perley, R.A., Schwab, F.R., Bridle, A.H.. Astronomical Society of Pacific.
Khaikin, V.B. 1992. New applications of radiogolography for mm-observations with RATAN-600 radiotelescope. These proceedings.
Esepkina, N.A., Petrunkin, V.Yu., Kuznetsov, B.G., Umetskij, V.I. 1961. Scientific-Technical informational bulletin of Leningrad Polytechnical InstituteRadiofizika” N9, pp.7578.
Hjellming, R.M. 1989. The design of aperture synthesis arrays. Synthesis Imaging in Radio Astronomy. A Collection of Lectures from the Third NRAO Synthesis Imaging Summer School, pp.477500. Edited by Perley, R.A., Schwab, F.R., Bridle, A.H.. Astronomical Society of Pacific.
Yu.N., Parijskij 1991. Doctor dissertation. Pulkovo observatory. USSR.
Pinchuk, G.A., Parijskij, Yu.N., Shannikov, D.V., Majorova, E.K. 1991. Multy-beam regime of radio telescope RATAN-600 work. Preprint N39, SAO USSR AS.

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