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A PHYSICAL DISCUSSION OF THE SINGLE PARABOLIC RADIO TELESCOPE AND THE TWO-TELESCOPE INTERFEROMETER

Hott, Douglas Allen
http://rave.ohiolink.edu/etdc/view?acc_num=ucin990815412

Abstract Details

2001, MS, University of Cincinnati, Arts and Sciences : Physics.
Radio astronomy is the science of collecting extra-terrestrial radiation in the range of 15 MHz to 600 GHz to gain understanding of celestial objects. In this thesis I discuss both the single parabolic reflector radio telescope and the two-telescope radio interferometer used in radio astronomy. The total power received by a parabolic reflector is dependent on the size of the antenna, the efficiency of the reflector, the wavelength of light under observation, and the angular response of the antenna, called the "normalized power pattern". Diffraction effects limit the resolution of the single parabolic reflector. The two-telescope interferometer has increased resolution because the main beam that would be created by a single antenna is split into multiple beams through interference, with the width of one beam corresponding to the angular resolution of the interferometer. A commonly used typed of interferometer is the correlating interferometer that integrates the product of the voltages received at each telescope. The correlating interferometer does not measure the received power directly, but rather the Fourier transform of it called the visibility function. By taking many measurements with different baselines, the visibility function can be sampled over the Fourier transform (or u-v plane) space. The visibility function can then be inverted to create a radio map of the brightness distribution of the source.
Randy Johnson (Advisor)
53 p.
Physics, Astronomy and Astrophysics
radio astronomy; interferometery; aperture synthesis; rotational synthesis; power pattern

Recommended Citations

Citations

  • Hott, D. A. (2001). A PHYSICAL DISCUSSION OF THE SINGLE PARABOLIC RADIO TELESCOPE AND THE TWO-TELESCOPE INTERFEROMETER [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990815412

    APA Style (7th edition)

  • Hott, Douglas. A PHYSICAL DISCUSSION OF THE SINGLE PARABOLIC RADIO TELESCOPE AND THE TWO-TELESCOPE INTERFEROMETER. 2001. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin990815412.

    MLA Style (8th edition)

  • Hott, Douglas. "A PHYSICAL DISCUSSION OF THE SINGLE PARABOLIC RADIO TELESCOPE AND THE TWO-TELESCOPE INTERFEROMETER." Master's thesis, University of Cincinnati, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin990815412

    Chicago Manual of Style (17th edition)

ucin990815412
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© 2001, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.