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Photometry and Spectrophotometry of the Seyfert Galaxy MRK 509 over 23 Years Photometry And Spectrophotometry Of The Seyfert Galaxy Mrk 509

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Abstract

In the time period from 1972-1993, the Seyfert 1 galaxy Mrk 509 showed large variations of its optical continuum and broad emission line fluxes. The broad Hα and Hγ emission lines have approximately the same profiles, which retain their shape during flux variations. The relationship between the continuum and emission line fluxes varies with time. The spectral energy distribution of the variable continuum based on UBVRI data has the form lgF(ν) ≈ αlgν, with the dereddened α = -0.60.

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Authors and Affiliations

  1. Sternberg Astronomical Institute, Moscow State University, Universitetskij prosp. 13, Moscow, V-234, Russia

    V.T. Doroshenko

  2. Crimean Astrophysical Observatory, P/O Nauchny, 334413, Crimea, Ukraine

    K.K. Chuvaev, S.G. Sergeev, V.I. Pronik & Yu.F. Malkov

Authors
  1. V.T. Doroshenko
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  2. K.K. Chuvaev
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  3. S.G. Sergeev
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  4. V.I. Pronik
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  5. Yu.F. Malkov
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Doroshenko, V., Chuvaev, K., Sergeev, S. et al. Photometry and Spectrophotometry of the Seyfert Galaxy MRK 509 over 23 Years Photometry And Spectrophotometry Of The Seyfert Galaxy Mrk 509. Astrophysics and Space Science 252, 85–94 (1997). https://doi.org/10.1023/A:1000857930955

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  • DOI: https://doi.org/10.1023/A:1000857930955

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