Speaker
Gustavo Esteban Romero
(Instituto Argentino de Radioastronomía)
Description
Recent observations by the LHAASO high-energy detector have revealed more than 40 sources with energies exceeding 100 TeV, most of which are located near the Galactic Plane. The nature of the majority of these sources remains unknown. Their emission must be powered by relativistic particles with energies near, or even beyond, the knee of the cosmic ray spectrum. Uncovering the origins of these cosmic ray accelerators presents a major challenge in contemporary high-energy astrophysics. In this talk, I will propose that some of these sources may be associated with super-Eddington accretors and dormant microquasars that emit little or no radiation at other wavelengths. I call these objects "Dark PeVatrons".
Author
Gustavo Esteban Romero
(Instituto Argentino de Radioastronomía)
