M
Maria Santos-Lleo
Researcher at European Space Agency
Publications - 85
Citations - 3779
Maria Santos-Lleo is an academic researcher from European Space Agency. The author has contributed to research in topics: Galaxy & Active galactic nucleus. The author has an hindex of 32, co-authored 82 publications receiving 3532 citations.
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Journal ArticleDOI
Search for narrow energy‐shifted lines in AGN spectra in the XMMNewton archive
TL;DR: In this article, a systematic search for narrow features in type 1 AGN is performed on all spectra available in the XMM-Newton archive with the aim to estimate the significance of the features with Monte Carlo simulations of synthetic spectra.
Journal Article
Spectrscopic monitoring of active galactic nuclei. 3 : Size of the broad line region in NGC 3227
I. Salamanca,Danielle Alloin,T. Baribaud,David Axon,A. G. de Bruyn,M. R. Goad,P. M. Gondhalekar,E. van Groningen,N. J. Jackson,Wolfram Kollatschny,Eija Laurikainen,Andy Lawrence,Josefa Masegosa,P. T. O'Brien,D. Pelat,M. V. Penston,Enrique Pérez,Ismael Perez-Fournon,A. Robinson,Maria Santos-Lleo,G. M. Stirpe,Clive Tadhunter,Roberto Terlevich,S. W. Unger,Stefan Wagner,Ignaz Wanders +25 more
TL;DR: In this paper, the authors present the results of a five-month monitoring campaign of the active galactic nucleus in NGC 3227, where the Hbeta and Halpha emission lines and the optical continuum have been analyzed.
Journal ArticleDOI
Deep learning-based super-resolution and de-noising for XMM-newton images
Sam Sweere,Ivan Valtchanov,M. Lieu,Antonia Vojtekova,Eva Verdugo,Maria Santos-Lleo,Florian Pacaud,Alexia Briassouli,D. P'erez +8 more
TL;DR: The first application of Machine Learning based super-resolution (SR) and de-noising (DN) to enhance X-ray images from the European Space Agency’s XMM-Newton telescope is presented.
Journal ArticleDOI
Swift, NuStar, and XMM-Newton observations of the NLS1 galaxy RX J2317.8-4422 in an extreme X-ray low flux state
Dirk Grupe,S. Komossa,Luigi C. Gallo,Norbert Schartel,Michael Parker,Maria Santos-Lleo,Andrew C. Fabian,Fiona A. Harrison,Giovanni Miniutti +8 more
TL;DR: In this article, the authors reported the discovery of RX J2317.8-4422 in an extremely low X-ray flux state by the Neil Gehrels Swift observatory in 2014 April/May.
Journal ArticleDOI
CIELO-RGS: a catalogue of soft X-ray ionized emission lines
Junjie Mao,Jelle Kaastra,Matteo Guainazzi,R. González-Riestra,Maria Santos-Lleo,Peter Kretschmar,Victoria Grinberg,E. Kalfountzou,A. Ibarra,G. Matzeu,Michael Parker,P. M. Rodriguez-Pascual +11 more
TL;DR: The Catalogue of Ionized Emission Lines Observed by the Reflection Grating Spectrometer (CIELO-RGS) onboard the XMM-Newton space observatory is presented in this article.