Ninth International Fermi Symposium

Session

Exploring Connections: Active Galactic Nuclei & Neutrinos

Apr 14, 2021, 4:35 PM

Conveners

Exploring Connections: Active Galactic Nuclei & Neutrinos: Plenary-4

• Markus Boettcher (North-West University)

57. The challenge of understanding AGNs through extensive multiwavelength observations

David Paneque

4/14/21, 4:35 PM

AGN

Invited

The Active Galactic Nuclei (AGN) are the most powerful persistent sources in the Universe, bringing information from extreme environments expected to accelerate particles to energies well above those at reach on Earth-based laboratories. In the last decade, the advent of novel instrumentation has boosted our capabilities to study these environments across the electromagnetic spectrum. Such...

58. EBL models and cosmology with gamma rays

Justin Finke

4/14/21, 5:00 PM

AGN

Invited

Gamma-rays from cosmological gamma-ray sources, primarily blazars but also gamma-ray bursts, interact with the extragalactic background light (EBL) photons, and are absorbed. This allows one to use gamma-ray absorption to constrain the EBL, which depends strongly on a number of quantities that are interesting from an astrophysical and cosmological point of view. This includes the universe's...

59. High-Energy Neutrino Observations by IceCube

Markus Ahlers (Niels Bohr International Academy, Niels Bohr Institute)

4/14/21, 5:25 PM

Neutrinos

Invited

The IceCube neutrino observatory at the geographic South Pole has been operating at full capacity for the past ten years. In 2013, IceCube reported first evidence of an isotropic flux of astrophysical neutrinos in the TeV-PeV energy range. While the flux is by now observed with high significance, its astrophysical origin is unknown. Only recently, IceCube was able to report first compelling...

60. Theoretical perspectives on Multimessenger Astronomy with astrophysical neutrinos

Anita Reimer (University of Innsbruck)

4/14/21, 5:50 PM

Neutrinos

Invited

Multi-messenger astrophysics experienced a tremendous boost, after the first detection of astrophysical neutrinos was reported eight years ago. Despite having uncovered a large variety of gamma-ray emitting source classes up to today, a firm identification of the dominant source population responsible for the detected high-energy neutrino all-sky flux is, however, still lacking.
In this...