13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

Correlated neutrino and photon emission during γ-ray flares from the blazar Mrk 421

17 Dec 2015, 14:00
25m
Level 0, Room 4 (International Conference Centre Geneva)

Level 0, Room 4

International Conference Centre Geneva

Speaker

Dr Maria Petropoulou (Purdue University)

Description

Blazars, being highly variable sources across the electromagnetic spectrum, may serve as promising targets for high-energy neutrino detection, especially during periods of flaring activity. Using as a testbed the nearby blazar Mrk 421, we present a detailed hadronic model of its emission during a 13-day flare in 2010 with unprecedented multi-wavelength and temporal coverage. We calculate the expected muon neutrino event rate observed by IceCube at energies >1 PeV, and compare it with that expected from a longer, yet non-flaring, period of emission. After applying the derived correlation between the >1 PeV neutrino and 0.1-300 GeV emission to the long-term Fermi/LAT light curve of Mrk 421, we calculate the expected number of muon neutrino events above 1 PeV within 5 years of full IceCube detector livetime and discuss the implications of the results.

Primary author

Dr Maria Petropoulou (Purdue University)

Co-authors

Dr Stavros Dimitrakoudis (University of Alberta) Mr Stefan Coenders (Technische Universitaet Muenchen)

Presentation Materials