Science Team

Matej Kosiba - trainee at the European Space Astronomy Centre (ESAC)
He is currently working at ESAC on the classification of galaxy clusters with convolutional neural networks as part of his master thesis at Masaryk University, Brno, Czech Republic. He is mainly interested in neural networks and their usage in astrophysics. In his free time, he enjoys movement complexity, gym, running, basketball, football, bouldering and classical Spanish guitar.

Maggie Lieu - Research Fellow at the European Space Astronomy Centre
Her main research interest is on cluster cosmology, but she is also interested in understanding the galaxy group and cluster populations as well as their mass distributions.

Bruno Altieri - Archive Scientist at the European Space Astronomy Centre
Bruno works on deep cosmological surveys to address astrophysical issues such as: the properties of the most distant galaxy clusters and proto-clusters, evolutionary sequences that lead star formation to migrate from high-z over-density to low density regions in the local universe, the Cosmic Infrared Background and the nature of its constituents and more.

Sarah Kendrew - Instrument and Calibration Scientist with the European Space Agency, working at the Space Telescope Science Institute in Baltimore, USA.
She works on the science operations team for MIRI, the mid-infrared instrument for the James Webb Space Telescope. Sarah has worked extensively with citizen science data from the Milky Way Project, studying high mass star formation in the Milky Way Galaxy.

Ivan Valtchanov - Instrument and Calibration Scientist at the European Space Astronomy Centre
Ivan is interested in clusters and groups of galaxies, large-scale structure of the Universe, Cosmology, multi-wavelength observations and high redshift objects.

Tatyana Sadibekova - Postdoc (CDD CNES), Service d’Astrophysique DSM/IRFU, CEA-Saclay
Her main research interests are cosmology, galaxies, galaxy groups and clusters, X-ray/Optical/IR catalogues, multi-wavelength cross-identification, redshift follow-ups for cluster confirmation, selection functions of large surveys, statistical analysis and data processing (X-ray, optical)

Lorenzo Faccioli - Postdoc (CDD CEA)

Nicolas Clerc - Researcher at CNRS, Institut de Recherche en Astrophysique et Planétologie Toulouse, France.
His scientific interests include observational cosmology, the origin, formation and constituents of the Universe, the formation and evolution of the large-scale structure, the physics of the hot baryonic gas and the evolution of baryonic matter. He's studying galaxy clusters and groups, in particular in X-ray wavelengths.

Marguerite Pierre -
Is the PI of the XXL survey collaboration and is interested in: X-ray observations of galaxy clusters and large-scale structures, low mass galaxy clusters from the local to distant Universe and large X-ray surveys with XMM to study cluster formation and the constraining of cosmological parameters.