Universe
Universe
11th Edition
ISBN: 9781319039448
Author: Robert Geller, Roger Freedman, William J. Kaufmann
Publisher: W. H. Freeman
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Chapter 6, Problem 33Q

(a)

To determine

The wavelength of the emission, if the Institute of Space and Astronautical Science (ISAS) in Japan proposes to place a radio telescope at an orbit higher than that of the HALCA telescope. The astronomers propose to use this combination of telescopes to study radio emission at a frequency of 43 GHz, using the molecule of silicon monoxide found in the interstellar clouds that form stars. Using this telescope in conjunction with a ground-based radio telescope, a 25000 km long baseline is obtainable. (1 GHz =1 gigahertz =109 Hz)

(b)

To determine

The angular resolution that can be achieved by assuming the baseline to be the effective diameter of a radio telescope array, if the Institute of Space and Astronautical Science (ISAS) in Japan proposes to place a radio telescope at a higher orbit than that of the HALCA telescope. Astronomers propose to use this combination of telescopes to study radio emission at a frequency of 43 GHz, from the molecule of silicon monoxide that is found in the interstellar clouds that form stars. Using this telescope in conjunction with a ground-based radio telescope, a 25000 km long baseline is obtainable. (1 GHz =1 gigahertz =109 Hz)

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