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V.T. Doroshenko K.K. Chuvaev S.G. Sergeev V.I. Pronik Yu.F. Malkov 《Astrophysics and Space Science》1997,252(1-2):85-94
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 H and H 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() lg, with the dereddened = -0.60. 相似文献
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