A Model of the Crab Nebula Derived from Dual-Frequency Radio Measurements

Abstract

The total intensity and linearly polarized emission from the Crab Nebula (Taurus A) were synthesized to a resolution of approximately 1 arc-minute at both 1420 and 2880 MHz. From these data were calculated the spectral index, rotation measure, intrinsic position angle, and depolarization ratio distributions. Then, combined with a source model, the physical conditions within the supernova remnant were established. The strength and orientation of both the homogeneous and random components of the magnetic field were determined and a measurement of the thermal electron plasma distribution obtained.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1972
Accession Number
AD0744678

Entities

People

  • G. A. Seislstad
  • K. W. Weiler

Organizations

  • Owens Valley Radio Observatory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Brightness
  • California
  • Depolarization
  • Electron Density
  • Electrons
  • Emission
  • Frequency
  • Line Of Sight
  • Linear Polarization
  • Magnetic Fields
  • Measurement
  • Military Research
  • Observatories
  • Orientation (Direction)
  • Polarization
  • Radiation

Fields of Study

  • Physics

Readers

  • Astronomy/Astrophysics
  • Materials Science and Engineering.
  • Pulsed Power and Plasma Physics.

Technology Areas

  • Microelectronics