Radio images of the Crab Nebula on the basis of lunar-occultation data

Details Radio images of the Crab Nebula on the basis of lunar-occultation data Radio images of the Crab Nebula on the basis of lunar-occultation data

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990azh....67..549a&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 67, May-June 1990, p. 549-560. In Russian.

Astronomy and Astrophysics

Astronomy

3

Crab Nebula, Lunar Occultation, Radar Imagery, Radio Astronomy, Angular Resolution, Image Reconstruction, Two Dimensional Models

Scientific paper

Two-dimensional images of the Crab Nebula at 750 and 178 MHz with angular resolution of 20 x 35 and 45 x 65 arcsec, respectively, have been restored on the basis of occultation profiles for 1982-1983. The use of cleaning with trim contour provides a good restoration quality of extended regions. A comparison is made between images with optical forbidden-line O III and radio maps at 1400, 535, and 114 MHz. Three bright regions are distinctly seen in the meter range; the most intense regions are the central and northwest ones.

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