Study of <scp>UV</scp> Line and Continuum Variabilities in the Broadline Seyfert 1 Galaxy <scp>ESO</scp> 141– <scp>G55</scp>

ABSTRACT 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.