IFAE is one of the leading institutes of the MAGIC Collaboration. We have high-level roles in the management of the Collaboration: O. Blanch is the spokesperson, and J. Rico is the coordinator of the Analysis and Publications Office. In addition, the Fundamental Physics working group was co-led through 2021 by D. Kerszberg. The MAGIC group at IFAE is responsible for the maintenance of part of the data acquisition system (receiver boards and cooling system), and of significant parts of the data analysis software. We also built and operate the official MAGIC Data Center at the Port d’Informació Científica.
During 2021, the operation of the MAGIC telescopes had to be stopped for three months due to the eruption of Cumbre Vieja at La Palma. Still, shortly after the eruption finished the MAGIC telescopes resumed operations without any significant effect related to the volcano eruption. Besides the maintenance and operation tasks, the activities of the group focused on the scientific exploitation of the instrument. M. Çolak has led the effort to look for VHE emission of millisecond Pulsars, which has led to a publication with the most relevant upper limits up to date, and finished her thesis on test of Lorentz Invariance. M. Artero has been improving reaction protocols for the MAGIC telescopes to neutrinos and gravitational waves. In addition D. Kerszberg, M. Martínez and C. Nigro contributed to a special issue on High Energy Gamma-Ray Astronomy with review articles on probing quantum gravity and data formats.