Roisín Brogan

My research interests lie in the field of Active Galactic Nuclei (AGN); bright, accreting supermassive black holes in the centres of galaxies. In particular, I am interested in the changing-look phenomenon, where significant increases/decreases have been observed in the energy output of certain AGN, along with changes in their optical spectrum. My doctoral research under the supervision of Dr. Mirko Krumpe focuses on a particularly impressive specimen - Mrk 1018 - which is highly variable. Through analysis of the large multiwavelength datatset available, spanning optical, UV and X-ray, different areas of the AGN structure can be investigated, adding to our understanding of the mysterious changing-look phenomenon. I am currently leading an ongoing photometric monitoring programme for Mrk 1018, using the AIP's robotic telescope STELLA at the Izana Observatory in Tenerife, Spain.

X-ray Astronomy
Doctoral Candidate
Office: SH/230.2
Phone: +49 331 7499 372
rbrogannothing@aip.de

Leibniz-Institut
für Astrophysik Potsdam (AIP)
An der Sternwarte 16
14482 Potsdam

Background

Before beginning my doctoral studies, I completed my Master's thesis at the AIP on exchange from Uppsala University in Sweden. This was under the supervision of Prof. Dr. Maria-Rosa Cioni and titled "Testing the Multi-Epoch Luminosity Function of AGB stars in the SMC". I have also worked on several smaller projects as part of my Master's studies in the fields of gravitationally lensed quasars, neutrino emission from AGN and dynamical modelling of AGB stars.