Long-term multi-band photometric monitoring of Mrk 501
Axel Arbet-Engels, Dominik Baack, Matteo Balbo, Adrian Biland, Thomas Bretz, Jens Buss, Daniela Dorner, Laura Eisenberger, Dominik Elsaesser, Dorothee Hildebrand, Roman Iotov, Adelina Kalenski, Karl Mannheim, Alison Mitchell, Dominik Neise, Maximilian Noethe, Aleksander Paravac, Wolfgang Rhode, Bernd Schleicher, Vitalii Sliusar and Roland Walter
A&A, 655 (2021) A93
DOI: https://doi.org/10.1051/0004-6361/202141886