OBSERVATIONS OF OH RADIO EMISSION SOURCES

Abstract

The 18-cm OH radio emission sources were studied to determine their character and their relation to other objects in our galaxy. The Haystack and Millstone antennas were used with a 100-channel digital autocorrelator to obtain Stokes parameter spectra of many of the brighter sources. Time variations in the OH emission from some of these sources were detected and studied and maps of the regions around OH emission sources were obtained in the continuum near 2 and 4 cm. The Haystack-Millstone spectral-line interferometer was used to check the positions of a pair of OH emission sources and to search for angular variation in the OH absorption across Cas A. Evidence for phenomenological associations between OH emission and H II regions, supernovae remnants, and infrared objects is discussed in the report and a kinematic model of the OH emission sources presented.

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Document Details

Document Type
Technical Report
Publication Date
May 23, 1969
Accession Number
AD0704572

Entities

People

  • John A. Ball

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Circular Polarization
  • Computer Programs
  • Computers
  • Data Reduction
  • Electromagnetic Radiation
  • Electrons
  • Linear Polarization
  • Measurement
  • Momentum
  • Observation
  • Observatories
  • Radio Astronomy
  • Spectra
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Spectroscopy.