"Interplanetary Scinilation of Small Diameter Radio Sources" in Nature.

A. Hewish, P. F. Scott, and D. Wills, "Interplanetary Scinilation of Small Diameter Radio Sources" in Nature, 19 September 1964, vol 203, pp 1214-1217 in the issue of pp 1205-1314. Extracted from a larger bound volume . Nice copy. [++] " By 1964, a number of radio quasars were known and some of these radio sources had small angular sizes. With Paul Scott and Derek Wills, Hewish showed that the radio scintillations were due to scattering of the radio waves by inhomogeneities in the ionised plasma flowing out from the Sun, what is known as the solar wind. This wind had been predicted by Eugene Parker in 1958 and observed by the Soviet Luna satellites in 1959 and by the U.S. Mariner-2 satellite in 1962. The paper by Hewish, Scott, and Wills showed how radio source scintillations could be used to map the outflowing solar wind (A. Hewish, P. F. Scott, and D. Wills, Nature 203 [1964]: 1214 17) [the paper offered here]. Hewish realised that a large, low-frequency array dedicated to the measurement of the scintillations of compact radio sources would provide a new approach to the study of three important astronomical areas: (a) it would enable many more quasars to be discovered; (b) their angular sizes could be estimated; and (c) the structure and velocity of the solar wind could be determined."-- Michael Longair, "The Discovery of Pulsars and the Aftermath" in PROCEEDINGS OF THE AMERICAN PHILOSOPHICAL SOCIETY VOL. 155, NO. 2, JUNE 2011 pg 147. [++] Hewish received the Nobel Prize for Physics in 1974 for his discovery of pulsars.…