OBSERVATIONS OF THE OWENS VALLEY RADIO OBSERVATORY. THE SPECTRA OF NON-THERMAL RADIO SOURCES,
Abstract
The spectra of most non-thermal sources can be closely represented by a simple power law at least between 40 and 1400 Mc/s. The distribution of spectral indices for the sources away from the galactic plane is sharply peaked about a median value of -0.76, while the sources near the plane have a considerably wider dispersion of indices. The small-diameter, relatively weak sources tend to have relatively flat spectra. The most luminous sources, with high surface brightnesses, have normal spectra at decimeter wavelengths but are considerably flatter at meter wavelengths, suggesting that they are younger sources where equilibrium between the rate of injection of relativistic electrons and the rate of radiation loss has not yet been established. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1944
- Accession Number
- AD0434038
Entities
People
- Kenneth I. Kellermann
Organizations
- California Institute of Technology