Talk detail

MG14 - Talk detail

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 Participant

Petropoulou, Maria

Institution

Purdue University, Department of Physics and Astronomy  - 525 Northwestern Avenue - West Lafayette - Indiana - USA

Session

GN2

Accepted

Order

Time

Talk

Oral abstract

Title

The Many Faces Of Blazar Emission In The Context Of Hadronic Models
Coauthors

Abstract

Blazar jets have long been considered as candidate sites of cosmic-ray acceleration to the highest energies observed (~5e20 eV). In the light of the recent IceCube neutrino detections, the hadronic model for blazar emission becomes more relevant than ever before. In the present talk we put emphasis on the characteristics of the spectral energy distribution (SED) of blazars in the context of hadronic models, and discuss the implications on their neutrino and cosmic-ray emission. Using the BL Lac Mrk 421 as our testbed, we present two ways of modeling its SED in the hadronic context (LHπ model vs. LHs model). We present the predictions of each "hadronic variant" on: (1) the multi-wavelength variability, e.g. X-ray/gamma-ray flux correlations; (2) the spectral shape; (3) the (ultra-high energy) cosmic-ray flux; and (4) the high-energy neutrino emission. Focusing on the neutrino emission, we then present an application of the LHπ model to BL Lacs that were recently suggested to be the counterparts of at least some of the IceCube neutrinos, and discuss briefly the subject of the contribution of the whole BL Lac class to the observed neutrino background.

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