High-resolution radio maps of the Crab Nebula
Abstract
Recent observations of the Crab Nebula at a wavelength of 11 cm are presented. Total intensity and linear polarization are displayed as photographs which show clearly some of the most interesting features of the nebula. The nebula has a filamentary structure at radio wavelengths, strikingly similar to that seen in optical line emission. The Crab Nebula was observed during the period 1977 October - November with the 5-km radio telescope at Cambridge. The observing frequency was 2.695 GHz. It is found that the radio nebula has a fairly well-defined edge, possibly with some limb-brightening in the southeast similar to the shell structure seen in other young supernova remnants.
- Publication:
-
Memorie della Societa Astronomica Italiana
- Pub Date:
- September 1978
- Bibcode:
- 1978MmSAI..49..569S
- Keywords:
-
- Astronomical Maps;
- Centimeter Waves;
- Crab Nebula;
- Radio Astronomy;
- Radiometers;
- Polarization (Waves);
- Supernova Remnants;
- Astronomy