Spectrophotometry of Mrk 509
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https://b2find.eudat.eu/dataset/706bab66-3ee3-5636-be85-b835f4c10a8d
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资源简介：
Variability of the continuum, H{beta}, H{gamma} and HeII(4686{AA}) fluxes of the Seyfert I galaxy Mrk 509 is studied using spectra obtained on the 2.6-m telescope of the Crimean...
