Relativistic jets are among the most powerful phenomena in the Universe. They are launched from rotating supermassive black holes and propagate collimated over thousands of light years while accelerating particles to the highest energies. In order to shield light on the formation, propagation and emission processes of relativistic jets we perform general and special relativistic...
Very long baseline interferometry (VLBI) observations enable us to study the parsec-scale structure of active galactic nuclei (AGN), and connect changes in jet brightness and morphology to the multiwavelength variability exhibited by these sources. In this talk, I will focus on our work related to the investigation of the connection between the radio and gamma-ray variability. I will discuss...
Soft gamma-ray observations are key to understanding the astrophysics of high-energy phenomena including accreting black holes, stellar flares, matter-antimatter annihilations, cosmic rays, and dark matter, among others. In this talk, I will give an overview on how these measurements are performed, the next generation MeV telescope, COSI, and projects in my group related to nucleosynthesis,...
