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Radio flux variations of the quasar J1159+2914 (S5 1156+295) in 2010–2013

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Abstract

Results of the observations of the blazar J1159+2914 (S1156+295) in 2010–2013 are reported. 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 τ acf = 6 h, the modulation index was m = 1.4%, and the flux density of the variable component was S var = 126 mJy.

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References

  1. H. Kühr, A. Witzel, I. I. K. Pauliny-Toth, and U. Nauber, Astron. Astrophys. Suppl. Ser. 45, 367 (1981).

    ADS  Google Scholar 

  2. M. P. Veron-Cetty and P. Veron, Astron. Astrophys. 518, 10 (2010).

    Article  ADS  Google Scholar 

  3. M. F. Aller, G. E. Latimer, and P. E. Hodge, Astrophys. J. Suppl. Ser. 59, 513 (1985).

    Article  ADS  Google Scholar 

  4. University of Michigan Dadio Astronomy Observatory Data Base. http://www.astro.lsa.umich.edu/obs/radiotel/umrao.php

  5. H. Terasranta, J. Achren, M. Hanski, J. Heikkila, J. Holopainen, O. Joutsamo, M. Juhola, K. Karlamaa, S. Katajainen, P. Keinanen, P. Koivisto, M. Koskimies, P. Kononen, M. Lainela, A. Lahtenmaki, K. Makinen, T. Niemela, P. Nurmi, P. T. Pursimo, R. Rekola, T. Savolainen, M. Tornikoski, J. Torppa, T. Valtonen, N. Varjonen, E. Vilenius, J. Virtanen, and S. Wiren, Astron. Astrophys. 427, 769 (2004).

    Article  ADS  Google Scholar 

  6. T. Hovatta, H. J. Lehto, and M. Tornikoski, Astron. Astrophys. 488, 897 (2008).

    Article  ADS  Google Scholar 

  7. T. Savolainen, D. C. Homan, T. Hovatta, M. Kadler, Y. Y. Kovalev, M. L. Lister, E. Ros, and J. A. Zensus, Astron. Astrophys. 512A, 24 (2010).

    Article  ADS  Google Scholar 

  8. J. E.J. Lovell, D. L. Jauncey, H. E. Bignall, L. Kedziora-Chudczer, J.-P. Macquart, B. J. Rickett, and A. K. Tzioumis, Astron. J. 126, 1699 (2003).

    Article  ADS  Google Scholar 

  9. T. Savolainen and Y. Y. Kovalev, Astron. Astrophys. 489, L33 (2008).

    Article  ADS  Google Scholar 

  10. J. Y. Koay, J. P. Macquart, B. J. Rickett, H. E. Bignall, J.E.J. Lovell, C. Reynolds, D. L. Jauncey, T. Pursimo, L. Kedziora-Chudczer, and R. Ojha, Astron. J. 142, 108 (2011).

    Article  ADS  Google Scholar 

  11. Monitoring of Jets in AGN with VLBA Experiments—MOJAVE/2cm Survey Data Archive—1159+2914. http://www.physics.purdue.edu/astro/MOJAVE/soursepages/1159+1294.shtml

  12. B. J. Wills, J. T. Pollock, Y. D. Aller, M. F. Aller, T. J. Balonek, R. E. Barvainis, R. P. Binzel, F. H. Chaffee, W. A. Dent, J. N. Douglas, C. Fanti, D. B. Garrett, L. Gregorini, R. B. C. Henry, R. E. Hill, R. Howard, N. Jeske, S. O. Kepler, R. J. Leacock, F. Mantovani, C. P. O’Dea, L. Padrielli, P. Perley, A. J. Pica, J. J. Puschell, N. Sanduleak, G. A. Shields, A. G. Smith, T. X. Thuan, C.M. Wade, A. J. Wasilewski, J. R. Webb, D. Wills, and W. Z. Wisniewski, Astrophys. J. 274, 62 (1983).

    Article  ADS  Google Scholar 

  13. P. Sreekumar, D. L. Bertsch, B. L. Dingus, J. A. Esposito, C. E. Fichtel, J. Fierro, R. C. Hartman, S. D. Hunter, G. Kanbach, D. A. Kniffen, Y. C. Lin, H. A. Mayer-Hasselwander, J. R. Mattox, P. F. Michelson, C. von Montigny, R. Mukherjee, P. L. Nolan, E. Schneid, D. J. Thompson, and T. D. Willisd, Astrophys. J. 464, 628 (1996).

    Article  ADS  Google Scholar 

  14. A. G. Gorshkov, V. K. Konnikova, and M. G. Mingaliev, Astron. Rep. 47, 903 (2003).

    Article  ADS  Google Scholar 

  15. A. G. Gorshkov and O. I. Khromov, Astrofiz. Issled. (Izv. Spets. Astrofiz. Observ.) 14, 15 (1981).

    ADS  Google Scholar 

  16. D. V. Ivanov, A. V. Ipatov, I. A. Ipatova, V. V. Mardyshkin, A. G. Mikhailov, and M. A. Kharinov, Tr. Inst. Prikl. Astron. 12, 93 (2005).

    Google Scholar 

  17. A. G. Gorshkov, A. V. Ipatov, I. A. Ipatova, V. K. Konnikova, V. V. Mardyshkin, M. A. Kharinov, and A. G. Mikhailov, Astron. Rep. 53, 389 (2009).

    Article  ADS  Google Scholar 

  18. A. G. Gorshkov, A. V. Ipatov, V. K. Konnikova, A. Lähteenmäki, V. V. Mardyshki, M. G. Mingaliev, E. Nieppola, J. Tammi, A. M. Finkel’shtein, and M. A. Kharinov, Astron. Rep. 55, 1096 (2011).

    Article  ADS  Google Scholar 

  19. G.A. Seielstad, T. J. Pearson, and A. C. S. Readhead, Publ. Astron. Soc. Pacif. 95, 842 (1983).

    Article  ADS  Google Scholar 

  20. U. Bash, T. P. Krichbaum, E. Ros, S. Britzen, W. W. Tian, A. Kraus, A. Witzel, and J. A. Zensus, Astron. Astrophys. 433, 815 (2005).

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Sternberg Astronomical Institute, Lomonosov Moscow State University, Universitetskii prospekt 13, Moscow, 119234, Russia

    A. G. Gorshkov & V. K. Konnikova

  2. Institute of Applied Astronomy, Russian Academy of Sciences, Zhdanovskaya ul. 8, St. Petersburg, 197110, Russia

    A. V. Ipatov, V. V. Mardyshkin & M. A. Kharinov

  3. Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, Karachay-Cherkess Republic, 357169, Russia

    M. G. Mingaliev

  4. Kazan (Volga Region) Federal University, Kremlyovskaya ul. 18, Kazan, 420008, Tatarstan, Russia

    M. G. Mingaliev

Authors
  1. A. G. Gorshkov
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  2. A. V. Ipatov
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  3. V. K. Konnikova
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  4. V. V. Mardyshkin
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  5. M. G. Mingaliev
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  6. M. A. Kharinov
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Correspondence to A. G. Gorshkov.

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Original Russian Text © A.G. Gorshkov, A.V. Ipatov, V.K. Konnikova, V.V. Mardyshkin, M.G. Mingaliev, M.A. Kharinov, 2014, published in Astronomicheskii Zhurnal, 2014, Vol. 91, No. 10, pp. 815–823.

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Gorshkov, A.G., Ipatov, A.V., Konnikova, V.K. et al. Radio flux variations of the quasar J1159+2914 (S5 1156+295) in 2010–2013. Astron. Rep. 58, 716–724 (2014). https://doi.org/10.1134/S1063772914100060

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