Soziodrama

Kellermann, Peter Felix

doi:10.1007/978-3-322-80982-7_12

Cited by 3 publications

(1 citation statement)

References 16 publications

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“…Haleakala, and, after his moves to Tasmania and to very low frequencies (that is, long wavelengths) of necessity switched to extended arrays of dipoles and such. But the much later 23-meter University of Tasmania parabolic dish actually looks a good deal like the primordial Wheaton, IL installation (Kellermann 2005).…”

Section: Midcourse Corrections and Digressionsmentioning

confidence: 99%

Interferometry meets the third and fourth dimensions in galaxies

Trimble¹

2014

Proc. IAU

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Abstract. Radio astronomy began with one array (Jansky's) and one paraboloid of revolution (Reber's) as collecting areas and has now reached the point where a large number of facilities are arrays of paraboloids, each of which would have looked enormous to Reber in 1932. In the process, interferometry has contributed to the counting of radio sources, establishing superluminal velocities in AGN jets, mapping of sources from the bipolar cow shape on up to full grey-scale and colored images, determining spectral energy distributions requiring nonthermal emission processes, and much else. The process has not been free of competition and controversy, at least partly because it is just a little difficult to understand how earth-rotation, aperture-synthesis interferometry works. Some very important results, for instance the mapping of HI in the Milky Way to reveal spiral arms, warping, and flaring, actually came from single moderate-sized paraboloids. The entry of China into the radio astronomy community has given large (40-110 meter) paraboloids a new lease on life.

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Section: Midcourse Corrections and Digressionsmentioning

confidence: 99%