ON THE CORRELATION OF IR AND OPTICAL VARIABILITYIN NGC 4151

Автор(и)

  • V. L. Oknyanskij Sternberg Astronomical Institute, Moscow State University Universitetsky prospect, 13, Moscow 119992, Russia, Russian Federation
  • V. M. Lyuty Sternberg Astronomical Institute, Moscow State University Universitetsky prospect, 13, Moscow 119992, Russia, Russian Federation
  • O. G. Taranova Sternberg Astronomical Institute, Moscow State University Universitetsky prospect, 13, Moscow 119992, Russia, Russian Federation
  • E. A. Koptelova Sternberg Astronomical Institute, Moscow State University Universitetsky prospect, 13, Moscow 119992, Russia, Russian Federation
  • V. I. Shenavrin Sternberg Astronomical Institute, Moscow State University Universitetsky prospect, 13, Moscow 119992, Russia, Russian Federation

DOI:

https://doi.org/10.18524/1810-4215.2008.21.86866

Ключові слова:

galaxies, AGNs, dust, IR, variabilty, individual, NGC 4151.

Анотація

We combine all published and new unpublished yet NIR (near infrared) photometrical observations of NGC 4151 which can be used for determination of time delays between optical and NIR variations. In previous study we have found that the values of time delay in NIR filters are not the same for different states of the luminosity. Here we consider the new photometrical data for the deep minimum in 2003-2007 following the very high state of the nucleus. We conclude that after sublimation in high state of nucleus the dust particles were recovering during at least several years.

Посилання

Oknaynskij V.L.: 1993, Astron. Lett., 19, 416.

Oknyanskij V.L., Lyuty V.M., Taranova O.G., Shenavrin V.I.: 1999, Astronomy Letters, 25, 483.

Oknyanskij V.L., Lyuty V.M., Taranova O.G., Shenavrin V.I.: 2006, ASP Conf. Ser., 360, 75.

Oknyanskij V.L., Horn K.: 2001, ASP Conf. Ser., 282, 330.

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Опубліковано

2008-12-20

Номер

Том 21 (2008)

Розділ

Статті

Ліцензія

Авторське право (c) 2016 Odessa Astronomical Publications

Creative Commons License

Ця робота ліцензується відповідно до Creative Commons Attribution-NonCommercial 4.0 International License.

Відповідно Закону України про авторське право і суміжні права N 3792-XII від 23 грудня 1993 року