Maria Santos-Lleo

TL;DR: In this article, the authors present evidence of the coexistence of either an AGN or an ultraluminous X-ray source, together with a young superstellar cluster, in the central 3 pc of NGC 4303.

TL;DR: In this paper, the X-ray spectra of PG 1535+547 were analyzed using the European Photon Imaging Camera (EPIC) for about one week, and it was shown that strong absorption features at E < 3 keV and a complex spectral shape in the iron-line energy range are evident.

TL;DR: In this article, a two-phase warm absorber was detected for the Seyfert 1 galaxy Mrk841 soft X-ray spectrum at high spectral resolution using the SPEX software, which showed that a medium ionisation component was responsible for a deep absorption feature in the Unresolved Transition Array of the Fe M-shell and for several absorption lines in the OVI-VIII band.

TL;DR: Les observations IUE du noyau de la galaxie de Seyfert de type 1, NGC 4151, sont presentees as discussed by the authors, les intensites du continuum and des raies d'emission sont determinees and leurs variabilites analysees.

TL;DR: In this paper, the authors present simultaneous XMM-Newton and NuSTAR observations of the repeat changing-look AGN NGC 1566, which dramatically increased in brightness in the IR to X-ray bands in 2018.