The observations of the lunar occultations of the sources 4C 24.11 and 4C 17.43 in the decametric range of radio waves.
Abstract
The results of observations of the lunar occultations of the sources 4C 24.11 and 4C 17.43 at the frequencies 20 and 25 MHz are presented. The coordinates, flux densities and upper limits of angular size are determined. For the source 4C 24.11 α(1950.0) = 06h01m51s.8±0s.3, δ(1950.0) = 24°30arcmin12arcsec±10arcsec the angular size is smaller than 20arcsec, the flux density is 27±4 and 23±4 Jy at the frequencies 20 and 25 MHz. For 4C 17.43 α(1950.0) = 08h12m43s.1±0s.8, δ(1950.0) = 17°51arcmin23arcsec±16arcsec the size is smaller than 30arcsec, the flux density is 27±5 and 22±4 Jy at 20 and 25 MHz respectively.
- Publication:
-
Astronomicheskii Zhurnal
- Pub Date:
- February 1986
- Bibcode:
- 1986AZh....63...45B
- Keywords:
-
- Astronomical Spectroscopy;
- Decametric Waves;
- Lunar Occultation;
- Radio Occultation;
- Brightness Distribution;
- Lunar Limb;
- Position (Location);
- Radiant Flux Density;
- Astronomy