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Radio Flux Variations of the Quasar J1159+2914 (S5 1156+295) in 2010-2013статья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 28 января 2015 г.
- Авторы: Gorshkov A.G., Ipatov A.V., Konnikova V.K., Mardyshkin V.V., Mingaliev M.G., Kharinov M.A.
- Журнал: Astronomy Reports
- Том: 58
- Номер: 10
- Год издания: 2014
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 716
- Последняя страница: 724
- DOI: 10.1134/S1063772914100060
- Аннотация: Results of the observations of the blazar J1159+2914 (S1156+295) in 2010–2013 are rreported. The observations were carried out on the RATAN-600 radio telescope (Special Astrophysical Observatory, Russian Academy of Sciences) at 4.85, 7.7, 11.1, and 21.7 GHz and the 32-m Zelenchuk and Badary radio telescopes of the Quasar–KVO Complex (Institute of Applied Astronomy, Russian Academy of Sciences) at 4.85 and 8.57 GHz. A flare peaked in August 2010, after which the flux density decreased monotonically at all studied frequencies. Variability on a timescale of 7 days was detected at 7.7 and 11.1 GHz near the flare maximum. The delay in the maximum at 7.7 GHz relative to the maximum at 11.1 GHz was 1.5 d, implying a Lorentz factor γ = 55 and angle of the jet to the line of sight θ ≈ 2◦ since mid-2011. Searches for intraday variability (IDV) were undertaken by the 32-m telescopes, mostly since mid-2011. Intraday variability was confidently detected only at the Badary station on November 10–11, 2012 at 4.85 GHz: the IDV timescale was τacf = 6 h, the modulation index was m = 1.4%, and the flux density of the variable component was Svar = 126 mJy.
- Добавил в систему: Конникова Валентина Константиновна