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The Berkeley-Illinois-Maryland-Association Millimeter Array

Published online by Cambridge University Press:  12 April 2016

Wm. J. Welch
Wm. J. Welch*
Affiliation:
Radio Astronomy Laboratory, University of California, Berkeley 94720

Abstract

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This is a general description of the BIMA millimeter wavelength array, including some recent scientific results, the status of the expansion to a larger number of antennas, and preliminary results of attempts to correct for atmospheric “seeing”. The examples of scientific results show CO images of the galaxy IC 342, emission in other spectral lines from the two regions of massive star formation SGR B2 and Orion South, and continuum emission from solar flares and the planet Mercury. There follows a brief description of the new antennas, new correlator, new receivers, and new refrigerators of the expanded array. Finally, there is a discussion of the first results from attempts to use measured fluctuations in the brightness of the atmosphere at the observing wavelength to infer the visibility phase fluctuatons due to the atmosphere. Removal of the phase fluctuations using the brightness fluctuations provides a better image of a test observation of M87.

Type
1. Recent Developments and Upgrading Plans for the Near Future
Information
International Astronomical Union Colloquium , Volume 140: Astronomy with Millimeter and Submillimeter Wave Interferometry , 1994 , pp. 1 - 9
Copyright
Copyright © Astronomical Society of the Pacific 1994

References

Armstrong, J.W., and Sramek, R.A. 1982, Radio Sci., 17, 1579.CrossRefGoogle Scholar
Bos, A. 1987, NFRA ITR no. 178.Google Scholar
Kasuga, T., Kanzawa, T., and Ishiguro, M. 1990, in “Radio Astronomical Seeing”, eds. Baldwin, J. and Shoguan, Wang, Pergamon, Oxford, p. 54. Google Scholar
Kundu, M.R., White, S.M., Gopalswamy, N., and Bieging, J.C. 1989, BAAS, 21, 861.Google Scholar
McMullin, J., and Mundy, L. 1992, Ap. J., in press.Google Scholar
Olmi, L., and Downes, D. 1992, Astron. Astrophys., in press.Google Scholar
Snyder, L., Miao, Y., and Kuan, Y.J. 1992. Ap. J., in press.Google Scholar
Waters, W.J. 1976, in “Methods in Experimental Physics”, vol. 12 B, ed. Meeks, M.L., Academic Press, NY, p. 142. Google Scholar
Wright, M.C., et al 1992, preprint.Google Scholar