Monitoring campaign reveals significant ultraviolet variability in a Seyfert 1 galaxy, suggesting accretion disk influences.
We present the results from a 3‐year‐long ultraviolet (UV) monitoring campaign of the broadline Seyfert 1 galaxy ESO 141–G55 using the International Ultraviolet Explorer (IUE). By modelling all individual, extinction‐corrected UV spectra in the 1150–1978 and 1850–3348 Å wavelength range, we have observed a significant variability in both UV continuum and line fluxes. Variabilities due to ionised UV lines like Si iv , Civ and He ii are delayed with respect to the UV continuum by , and days, respectively. At a distance of ∼0.004 c , an outer accretion disk can be a possible site for the origin of UV lines.
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Pahari et al. (2026) studied this question.
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