Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982jrasc..76....1v&link_type=abstract
Journal of the Royal Astronomical Society of Canada, vol. 76, Feb. 1982, p. 1-18. In French.
Astronomy and Astrophysics
Astronomy
2
Histories, Milky Way Galaxy, Radio Astronomy, Australia, Canada, Radio Frequencies, Radio Telescopes, Radio Transmission, Spectral Resolution, Static Electricity, United Kingdom, United States
Scientific paper
The history of radio astronomy and radio astronomers is outlined for the observation of celestial events at EM frequencies between 3,000,000-300 billion Hz. Noting that more information about the composition of events and objects can be gained at radio frequencies than at optical frequencies, the history begins with Jansky (1932) and an experiment to discover the source of static in transAtlantic radio transmission. Significant milestones are highlighted, including the invention of the parabolic radiotelescope in 1937 and the development of the synthetic telescope beginning in 1950, which permits resolution of objects less than 1/10 arcsec. Finally, the development of a 4900 km synthetic telescope in Canada, called the Interferometric Network, is described.
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