Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.sao.ru/cats/~satr/RFSymp/abs/39_Volvach.pdf Дата изменения: Mon Oct 9 11:39:04 2006 Дата индексирования: Tue Oct 2 09:35:29 2012 Кодировка: Поисковые слова: tail

THE COMBINED RADIO AND OPTICAL INVESTIGATIONS OF THE INTRADAY VARIABILITY OF ACTIVE GALACTIC NUCLEI
A.E. Volvach1 , V.S. Bychkova2 , N.S. Kardashev2 , M.G. Larionov2 , V.V. Vlasyuk3 , O.I. Spiridonova 3 SRI Crimean Astrophysical Observatory, Ukraine, Astro Space Centre of the Leb edev Physical Institute, Russia Sp ecial Astrophysical Observatory of the Academy Science, Russia volvach@crao.crimea.ua
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The combined radio and optical observations of the active galactic nuclei 0133+476, 1633+382, 2145+067, 2251+158 were p erformed in 2004-2006. The aim of analysis was to detect an intraday flux variability and to search for its p ossible correlation in radio and optical wavelengths. Observations were conducted with the use of the RT-22 radio telescop e (SRI CrAO) at 22 and 36 GHz and the 1-m Zeiss-1000 reflector of SAO RAS with CCD camera. During observations we found no significant fluctuations of fluxes at b oth ranges. At the level of 10% from the average amplitude more high activity of the ob ject 1633+382 was detected at 36 GHz in May 2004 then the one in May 2005. The reason of it may b e a passive phase of the ob ject after the burst in 2002. The observable flux variation in 0133+476 at the time scale of one hour were noticed in Octob er 2005 but not optical range. Such flux b ehaviour may indicate to absence of the identical area for radio and optical emission after matter collimation in the black hole p olar region. References Volvach A.E., Larionov M.G., Aller M., Aller H.: Radio Astronomy and Radio Physics, 2005. 10, N.4, 377.