Variability of the Blazar 4C 38.41 in 2006–2017

V. A. Hagen-Thorn, Yu V. Troitskaya, E.I. Hagen-Thorn, I. S. Troitsky, S. S. Savchenko, A. A. Arharov, N. V. Efimova, S. K. Klimanov, E. V. Volkov

Результат исследований: Научные публикации в периодических изданияхстатья

Аннотация

The results of multicolor photometric and polarization observations of the blazar 4C 38.41 (Q 1633+382) performed at St. Petersburg State University, the Pulkovo Astronomical Observatory of the Russian Academy of Sciences, Boston University, and Steward Observatory in 2006–2017 are analyzed. Separate variable sources responsible for the observed activity are distinguished, whose power-lawspectra and high degree of polarization confirm their synchrotron nature. The observed color variability of the object (redder when brighter) can be explained by an increase in the contribution to the total emission of a red component with variable flux and a constant relative spectral energy distribution. A close correlation between the optical and gamma-ray light curves is identified, suggesting the same location of the variable sources responsible for the radiation in these bands.

Язык оригиналаанглийский
Страницы (с-по)378-390
Число страниц13
ЖурналAstronomy Reports
Том63
Номер выпуска5
DOI
СостояниеОпубликовано - 1 мая 2019

Предметные области Scopus

  • Астрономия и астрофизика
  • Космические науки и планетоведение

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