Mauro D’Onofrio took his Laurea degree in Astronomy at the University of Padova in June 1987. Later on, he got the title of Magister Philosophie at the International School for Advanced Studies in Trieste in 1989. He obtained his Ph.D. in 1991 at the same school. He is an associate professor in the Department of Physics and Astronomy of Padova University. Since 2017 he qualifies as a full professor. He has been invited to speak at several international meetings. In his career, he has published more than 120 refereed papers in international astronomical journals. He is the author of several books with the Springer editor. He was a professor of Didactic Astronomy and Fundamental Astronomy at the SISS school from 1999 to 2009. He has been a professor in the Department of Physics and Astronomy of Padova for the Laurea degree in Astronomy since 1992. At present, he is a professor of Applied Optics for the LT and Interferometry and Astrophysics for the LM. He is well-known in the astronomical community for his works on the non-homology of early-type galaxies. He has successfully worked on the extra-galactic novae, Globular Clusters, the Cepheid stars, and the interferometry of the cataclysmic variables. He is an expert in the calibration and setup of astronomical instruments, data reduction, and data analysis. He is an Associate Editor for the Frontiers in Astronomy and Space Science journal. He works as a referee for many astronomical journals (ApJ, AJ, MNRAS, A&A, etc.).

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Cesare Chiosi was a Former Full Professor of Theoretical Astrophysics and is currently Professor Emeritus of Theoretical Astrophysics at the University of Padua. He received his degree in Physics in 1965. He was a full professor of Theoretical Astrophysics (Padua) from 1986 to 2010, and his retirement placement was in October 2010. He has been an Emeritus Professor of Theoretical Astrophysics at the University of Padua Since 2011, was an adjunct professor of Theoretical Astrophysics I and II of the Master’s Degree in Astronomy at the University of Padua from 2011 to 2013, and was an adjunct professor of Theoretical Astrophysics I of the Master's Degree in Astronomy of the University of Padua from 2013 to 2014.

Castalia Alenka Negrete studied Physics at the Faculty of Sciences of the UNAM, obtained her Master’s degree at the Institute of Astronomy (IA) of the UNAM, and her doctorate also at the IA-UNAM during which she had a year of research stay at the Astronomical Observatory of Padua, Italy (OAPD) and a two-year postdoctoral stay at the INAOE. Her specialty is Extragalactic Astronomy, in particular the study of active nuclei galaxies (AGN), from the observational approach but also creating theoretical models. She is an expert in the spectroscopic analysis of AGN in multi-frequency, from UV to infrared, with wide and narrow lines. She has practical observational experience on national telescopes, as well as spectral reduction and analysis. She manages large databases (e.g., HST, SDSS). She develops theoretical models (using Cloudy) that study the physical and kinematic conditions of the region closest to the black hole, the size of this region, and the masses of black holes. She also studies the physical structure of AGN, superluminal jets, and their connection with the region closest to the black hole. She participates in the search and study of the multifrequency of dual Seyfert galaxies as well as in observational cosmology using a specific type of AGN as standard candles. She has experience in the study of the host galaxy and among her short-term projects is the study of the circumnuclear medium (feeding and feedback).