Radio telescopes bigger than the earth

Details Radio telescopes bigger than the earth Radio telescopes bigger than the earth

Oct 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982asaer..20...44b&link_type=abstract

Astronautics and Aeronautics, vol. 20, Oct. 1982, p. 44-52.

Astronomy and Astrophysics

Astronomy

1

Radio Astronomy, Radio Telescopes, Spaceborne Telescopes, Very Long Base Interferometry, Michelson Interferometers, Radio Antennas, Space Transportation System Flights

Scientific paper

The very long baseline interferometer (VLBI) method for observing the universe, and the possibility of putting radio antennas in space to increase power capabilities, are presented. The VLBI (with an angular resolution one thousand times better than that of a 200 in. telescope) is based on the Michelson interferometer, with improvements to obtain better results. VLBI can reveal naturally occurring masers in space, and resolves structures with an angular size smaller than 0.0001 arcsec. VLBI observations also reveal structures in quasar nuclei which expand at many times the speed of light. To improve VLBI observations, space-borne radiotelescopes are being examined, and the Space Shuttle is being considered for a platform and a test facility. In the future, a free-flying satellite for VLBI observations may be developed.

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