Sérgio Xavier's Master Degree Exam

Sérgio Vinicius Monteiro Castelo Branco Xavier defended his Master's Dissertation entitled "Shadows of rotating and charged black holes: Kerr-Newman versus Kerr-Sen". The exam took place remotely, on 28th April 2020, using Google Meet platform, due to the pandemic COVID-19 ( Coronavirus Disease 2019 ). The dissertation was supervised by the Grav@zon member Prof. Dr. Luís C. B. Crispino. The board of examination was composed by Prof. Dr. George Emanuel Avraam Matsas (UNESP), Prof. Dr. Manuel Eleuterio Rodrigues (UFPA-Abaetetuba) and Prof. Dr. Carolina Loureiro Benone (UFPA-Salinópolis). Congratulations, Sérgio! (April/2020)