The structure of the radio galaxy 3C 111 at decameter wavelengths

Citation
Av. Megn et al., The structure of the radio galaxy 3C 111 at decameter wavelengths, ASTRON REP, 43(7), 1999, pp. 428-435
Citations number
24
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY REPORTS
ISSN journal
10637729 → ACNP
Volume
43
Issue
7
Year of publication
1999
Pages
428 - 435
Database
ISI
SICI code
1063-7729(199907)43:7<428:TSOTRG>2.0.ZU;2-Q
Abstract
Results of the first radio interferometric observations of the radio galaxy 3C 111 at decameter wavelengths are presented. The observations were obtai ned using the URAN-1 interferometer. A simple model for the radio-brightnes s distribution of this source at 25 and 20 MHz has been determined. The gen eral properties of the best-fit: three-component model at these wavelengths are similar to those observed at centimeter wavelengths; the overall maxim um sizes and position angles of the structures are virtually identical. How ever, there are appreciable differences; in particular, the decameter angul ar sizes of the outer components are considerably larger, and the relative contribution of the central component (which coincides with the optical gal axy) is much less.