Long-Term and Rapid Variability of the Radio Source J1603+1105

Konnikova, V.K.; Mingaliev, M.G.; Erkenov, A.K.

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Дата последнего поиска статьи во внешних источниках: 30 августа 2017 г.

Авторы: Konnikova V.K., Mingaliev M.G., Erkenov A.K.
Журнал: Astrophysical Bulletin
Том: 72
Номер: 3
Год издания: 2017
Первая страница: 224
Последняя страница: 231
DOI: 10.1134/S1990341317030129
Аннотация: We present the long-term light curve of the radio source J1603+1105 and results of the study of its variability on timescales from several days to several weeks. From 2007, a flare with the maximum in 2010 was observed for the object that earlier showed no significant variations of flux density. Three flares with a successively decreasing amplitude were detected at an active phase in the long-term light curve. The characteristic time of the first one was 2.5 yrs. In five sets of daily observations of 95 to 120 days, the flux density variability on scales from 9 to 32 days in 2011, 2012, 2015, and 2016 was detected; in 2015 it was detected at three frequencies simultaneously. In 2011, the variability was found at a single frequency of 4.8 GHz; in 2012—at two frequencies, 4.8 and 7.7 GHz; in 2015—at 4.6, 8.2, and 11.2 GHz.We present instant spectra of the source at different flare phases showing that the dynamics of the flare development is consistent with the model, in which the variability is the result of the shock wave evolution in the radio source jet.
Добавил в систему: Конникова Валентина Константиновна

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