Accession Number : ADA136533

Title :   Extragalactic Radio Sources: Rapid Variability at 90 GHz.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA ELECTRONICS RESEARCH LAB

Personal Author(s) : Epstein,E E ; Landau,R ; Rather,J D G

PDF Url : ADA136533

Report Date : 15 Dec 1983

Pagination or Media Count : 29

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)

Descriptors :   *Radio astronomy, *Radio sources(Astronomy), Quasars, Antennas, Galaxies, Gain, Directional antennas, Aiming, Millimeter waves, M band, Electrons, Radio waves, Magnetic fields, Energy, Variations, Temperature, Sizes(Dimensions), Calibration, Solar radiation, Venus(Planet), Flux density, Jupiter(Planet), Saturn(Planet)

Subject Categories : Astrophysics

Distribution Statement : APPROVED FOR PUBLIC RELEASE