Extragalactic Radio Sources: Rapid Variability at 90 GHz.

Abstract

Thirty-three extragalactic variable radio sources have been observed at 90 GHz (3.3 mm) over two several-day-long periods in a search for daily and hourly variations. OV-236 (1921-29) showed a decrease in flux density by a factor of 2.7 over a three-day interval, recovering its previous flux density two days later. (OV-236 began a dramatic outburst a few months later.) The other sources exhibited no significant variations approximately > 20%. A summary of previous radio observations of rapid variability is contained in the appendix. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 15, 1983
Accession Number
ADA136533

Entities

People

  • E. E. Epstein
  • J. D. G. Rather
  • R. Landau

Organizations

  • The Aerospace Corporation

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Antennas
  • Chemical Reactions
  • Electron Energy
  • Electronics
  • Emission
  • Energy
  • Flux Density
  • Linear Polarization
  • Materials
  • Measurement
  • Observation
  • Observatories
  • Radiation
  • Radio Telescopes
  • Space Systems
  • Spectra
  • Standards

Readers

  • Astronomy/Astrophysics
  • Mathematics or Statistics