Speaker
Ioannis Liodakis
(Kavli Institute for Particle Astrophysics and Cosmology, Stanford University)
Description
Even with several thousand Fermi-LAT blazar detections, the high-energy jet emission mechanism is poorly understood. Although popular models point towards leptonic processes, the recent possible neutrino association with a γ-ray flare challenges our understanding of these processes implicating a hadronic contribution to the high energy emission of blazar jets. I will discuss our recent efforts to address the distinction between leptonic and hadronic models by exploring the temporal relation and correlated flux variations between optical and γ-rays for the largest sample of γ-ray blazars analyzed to this date, as well as the first attempt to quantify the fraction of orphan γ-ray flares in the Fermi light curves.
Author
Ioannis Liodakis
(Kavli Institute for Particle Astrophysics and Cosmology, Stanford University)
Co-authors
Prof.
Roger Romani
(Stanford University)
Dan Kocevski
Prof.
Alex Filippenko
(University of California Berkeley)
