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First observations with the 64-m Kalyazin telescope included in a ground-based—space interferometer: The quasar 3C 147 |
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| Authors: | V. I. Slysh M. V. Popov B. Z. Kanevskii A. I. Smirnov A. V. Kovalenko Yu. P. Ilyasov V. V. Oreshko B. A. Poperechenko H. Hirabayashi K. M. Shibata E. B. Fomalont |
| Affiliation: | (1) Astrospace Center, Lebedev Institute of Physics, Russian Academy of Sciences, ul. Profsoyuznaya 84/32, Moscow, 117810, Russia;(2) Special Design Office, Power Engineering Institute, Moscow, Russia;(3) Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara-shi, Kanagawa 229-8510, Japan;(4) National Astronomical Observatory, 2-21-1 Osawa, Mitaka, Tokyo 181, Japan;(5) National Radio Astronomy Observatory, 520 Edgemont Road, Charlottesville, VA 22903, USA |
| Abstract: | The 64-m radio telescope equipped with an S-2 recording system in the town of Kalyazin was involved in an international fine-structure survey of quasars and active galactic nuclei carried out with a ground-based—space radio interferometer. The HALCA Japanese satellite in an orbit with an altitude of up to 24 000 km with an 8-m antenna was used as a space element of the interferometer. A radio image of the inner region of the CSS-type quasar 3C 147 was obtained with an angular resolution of ～0.3 mas at 6 cm. The image exhibits a core and several jet components mostly arranged in the main jet direction, but one of the components moves across the jet. No evidence was found for the superluminal separation of jet components. The estimated brightness temperature,～1011 K, is consistent with the theoretical limit imposed by synchro-Compton radiation. |
| Keywords: | interferometry quasars fine structure |
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