Ninth International Fermi Symposium

Session

Exploring Connections: Neutrinos and Gamma Rays

14 Apr 2021, 18:15

Conveners

Exploring Connections: Neutrinos and Gamma Rays: Parallel-7

• Markus Ahlers

61. Multimessenger follow-up of high energy neutrino events using Fermi-GBM

Joshua Wood (University of Wisconsin, Madison)

14/04/2021, 18:15

Neutrinos

Contributed

The simultaneous detection of a high energy neutrino event during a gamma-ray flare from TXS 0506+056 played an essential role in its identification as an astrophysical neutrino source in 2017. This highlights the current importance of electromagnetic follow-up by gamma-ray instruments for finding new sources in the field of high-energy neutrino astronomy where many of the sources and source...

62. 12.5 Years of Fermi LAT Flare Advocate Service

Stefano Ciprini (INFN & University Perugia)

14/04/2021, 18:30

Neutrinos

Contributed

The Fermi Flare Advocate (also known as Gamma-ray Sky Watcher, FA-GSW) service provides for a quick look and review of the gamma-ray sky observed daily by the Fermi Large Area Telescope (LAT) through on-duty LAT Flare Advocates and high level software pipelines like the LAT Automatic Science Processing (ASP), the Fermi All-sky Variability Analysis (FAVA), a dedicated suite of software and,...

63. Patterns in the multi-wavelength behavior of neutrino emitting blazar candidates

Simone Garrappa

14/04/2021, 18:45

Neutrinos

Contributed

The detection of the flaring gamma-ray blazar TXS 0506+056 in spatial and temporal coincidence with the high-energy neutrino IC-170922A represents a milestone for multi-messenger astronomy. This finding suggests that gamma rays represent an important tracer of neutrino production in blazars and the 11-year all-sky coverage of the Fermi-LAT provides unique opportunities for both long-term...

64. Searching for the sources of high-energy astrophysical neutrinos with VERITAS

Weidong Jin (The University of Alabama)

14/04/2021, 19:00

Gamma-ray Bursts

Contributed

VERITAS, an array of atmospheric-Cherenkov telescopes sensitive to gamma rays in the very-high-energy range (VHE, E > 100 GeV), carries out an extensive multimessenger program focused on the search for electromagnetic counterparts to high-energy neutrinos and gravitational waves. As both neutrinos and gamma rays are expected to be produced in hadronic interactions near cosmic ray accelerators,...

65. Multimessenger tests of high-energy neutrino production in blazars

Foteini Oikonomou

14/04/2021, 19:15

Neutrinos

Contributed

Blazars host relativistic jets which are considered to be excellent sites for high-energy-cosmic-ray acceleration. In the vicinity of the supermassive black hole and inside the relativistic jet, there exist photon fields which are thought to facilitate high-energy neutrino production. Recently, a number of blazars have been tentatively associated with high-energy neutrinos detected by the...

66. Seeking the Link between IceCube High-Energy Neutrinos and the Unresolved Gamma-ray Background

Michela Negro

14/04/2021, 19:30

Neutrinos

Contributed

The new era of the multi-messenger Astrophysics has begun. The first step required to enable this science is to identify the multimessenger sources. Of particular interest is the relation between the high-energy neutrino events detected by IceCube Observatory and the γ-ray emission from extra-galactic objects. Despite the effort devoted to finding a clear γ-ray counterpart to astrophysical...