The RT-22 of the CRAO: scientific program elaboration and performance of ground-based VLBI test experiments within the framework of the project «RadioAstron»
Heading:
| 1Volvach, AE, 2Kardashev, NS, 3Larionov, MG 1Laboratory of Radio Astronomy, SRI Crimean Astrophysical Observatory, Katsiveli, AR Crimea, Ukraine 2Astro Space Center of PN Lebedev Physics Institute, , Moskov, Russia 3Astro Space Center of P.N. Lebedev Physics Institute, Moscow, Russia |
| Kosm. nauka tehnol. 2011, 17 ;(1):70-75 |
| https://doi.org/10.15407/knit2011.01.070 |
| Publication Language: Russian |
Abstract: The Earth-space science program «RadioAstron» includes high-resolution (microseconds of arc) study of the morphology and dynamics of the circumnuclear regions of sources of powerful energy. In accordance with the scientific cooperation between Ukraine and Russia, the study is carried out using the 22-m radio telescope RT-22 of the SRI «Crimean Astrophysical Observatory». The research program provides the investigation with highly sensitive radiometers at frequencies of 22 GHz and 36 GHz. This makes it possible to obtain spectral characteristics of the sources near a frequency of 22 GHz, which is the fundamental frequency of the experiment «RadioAstron». To realize the project, the scientific program is developed, a substantial part of which is the study of compact structures in extragalactic sources, and ground-based VLBI test experiments are conducted.
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| Keywords: radio telescope, spectral characteristics, «RadioAstron» |
References:
1. Volvach A. E. Binary systems of supermassive black holes in the active galaxy nuclei. Kinematika Fiz. Nebesn. Tel, 25 (5) 385—401 (2009) [in Russian].
2. Volvach A. E. The catalogue of sources for the flight program «Radioastron». Kosm. nauka tehnol., 15 (6), 28—43 (2009) [in Russian].
https://doi.org/10.15407/knit2009.06.028
https://doi.org/10.15407/knit2009.06.028
3. Volvach A. E., Bychkova V. S., Kardashev N. S., et al. Fast brightness variations of blazars in the radio and optical. Astron. zhurn., 86 (5), 440—448 (2009) [in Russian].
4. Volvach A. E., Volvach L. N., Kardashev N. S., Larionov M. G. Studies of sources from the WMAP catalog. Astron. zhurn., 85 (6), 483—497 (2008) [in Russian].
5. Volvach A. E., Volvach L. N., Kut'kin A. M., Larionov M. G. Characteristics of the environment near supermassive black holes in the nuclei of active galaxies. Kinematika Fiz. Nebesn. Tel. Prilozhenie, No. 6, 93—97 (2009) [in Russian].
6. Volvach A. E., Volvach L. N., Kut'kin A. M., et al. Sub-parsec structure of binary supermassive black holes in active galactic nuclei. Astron. zhurn., 87 (1), 33—42 (2010) [in Russian].
7. Volvach A. E., Volvach L. N., Larionov M. G., et al. The variability of a 3C 454.3 blazar over a 40-year period. Astron. zhurn., 84 (6), 503—513 (2007) [in Russian].
8. Volvach A. E., Volvach L. N., Larionov M. G., et al. Correlations between the development of a flare in the Blazar 3C 454.3 in the radio and optical. Astron. zhurn., 85 (11), 963—971 (2008) [in Russian].
9. Vol'vach A. E., Kardashev N. S., Larionov M. G. On the study of compact radio sources for the program "RadioAstron". Publications of the Sternberg State Astronomical Institute, 75, 184—185 (2004) [in Russian].
10. Vol'vach A. E., Kardashev N. S., Larionov M. G., et al. Investigating statistical and spectral characteristics of the radio sources from the RadioAstron catalog at millimetric wavelengths. Kinematika Fiz. Nebesn. Tel, 23 (3) 174—185 (2007) [in Russian].
https://doi.org/10.3103/s0884591307030063
https://doi.org/10.3103/s0884591307030063
11. Volvach A. E., Pushkarev A. B., Volvach L. N., et al. Structures, pregnancy and flare activity of four objects of the BL Lac type. Kinematika Fiz. Nebesn. Tel. Prilozhenie, No. 6, 85—92 (2009) [in Russian].
12. Volvach A. E., Pushkarev A. B., Volvach L. N., et al. Evolution of flux density and parsec scale structure of compact extragalactic radio sources from monitoring results at 4.8—36.8 GHz and imaging on the basis of geodetic VLBI observations. Kosm. nauka tehnol., 15 (4), 33—57 (2009) [in Russian].
https://doi.org/10.15407/knit2009.04.033
https://doi.org/10.15407/knit2009.04.033