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

für Astrophysik Potsdam (AIP)
An der Sternwarte 16
14482 Potsdam


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.


Latest refereed publications, retrieved from NASA ADS:

Tubín-Arenas, D., Lamer, G., Krumpe, M., Urrutia, T., Schwope, A., Brogan, R., ..., 2023
Astronomy and Astrophysics, 672, L9; published April 2023