Very large array observations of solar active regions

Details Very large array observations of solar active regions Very large array observations of solar active regions

Mar 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979natur.278...24l&link_type=abstract

Nature, vol. 278, Mar. 1, 1979, p. 24-28.

Astronomy and Astrophysics

Astronomy

20

Astronomical Maps, Radio Astronomy, Solar Activity, Solar Arrays, Very Large Array (Vla), Astronomical Observatories, Centimeter Waves, Microwave Interferometers

Scientific paper

A description is presented of synthesis maps of solar active regions obtained using 12 25-m paraboloids (65 interferometer pairs) of the very large array (VLA) now under construction near Socorro, New Mexico. Attention is given to the construction and operation of the VLA, the measurements, the VLA synthesis maps, and comparisons with magnetograms. The procedure which has been implemented involves a direct synthesis of a 'dirty' map that is the convolution of the true brightness distribution with the response function of a point source. A deconvolution of the dirty map was then performed using the clean procedure in which the effects of the 14% sidelobes of the synthesized beam were reduced.

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