Interferometer observations of the quasar 3C216 at the decameter wavelengths

Details Interferometer observations of the quasar 3C216 at the decameter wavelengths Interferometer observations of the quasar 3C216 at the decameter wavelengths

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001kfnt...17..195m&link_type=abstract

Kinematika i Fizika Nebesnykh Tel, vol. 17, no. 3, p. 195-212

Computer Science

3

Scientific paper

The study of the angular structure of the quasar 3C216 with the URAN interferometers (baselines of 42.3 km, 152.3 km, and 946.2 km) at the decameter wavelengths is presented. The source radio image in this range is shown to be essentially different from that at higher frequencies. The most suitable simple models of radio brightness distribution at frequencies of 20 and 25 MHz were determined. They consist of two practically co-centered components (core-halo model): a compact feature with dimensions from 1.7{''} to 2.4{''} and an extended one with diameter of about 21{'}. Their flux densities at these frequencies are (0.61-0.63)S_0 for the compact component and (0.39-0.37)S_0, for the extended one, S_0 being the total flux density of the quasar.

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