Astrophysical Bulletin

, Volume 64, Issue 2, pp 185–190 | Cite as

Observations of the rapid variability of the two BL Lac type objects J2005+77 and J2022+76 with the RATAN-600

  • Yu. V. Sotnikova
  • M. G. Larionov
  • M. G. Mingaliev
Article

Abstract

We report here the results of observations of two BL Lacertae-type objects, J2005+77 and J2022+76, using the RATAN-600 at frequencies 11.2, 7.7, and 4.8 GHz. We found variations of radio emission on timescales of one day and we are the first to discover a variability of this type for J2022+76.We compare our observations with long-term multifrequency radio observations of the same sources performed on RATAN-600 within the framework of other observational programs. We analyze the behaviour of variability of the two sources and provide arguments in favour of the preferred emission generation mechanisms for the objects studied.

PACS numbers

95.85.Bh 98.54.Cm 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  • Yu. V. Sotnikova
    • 1
  • M. G. Larionov
    • 2
  • M. G. Mingaliev
    • 1
    • 3
  1. 1.Special Astrophysical ObservatoryRussian Academy of SciencesNizhnij ArkhyzRussia
  2. 2.Astro Space Center, Lebedev Physical InstituteRussian Academy of SciencesMoscowRussia
  3. 3.South Federal University (Rostov State University)Rostov-on-DonRussia

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