SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 119: Neutrino Astronomy IV
T 119.4: Vortrag
Donnerstag, 23. März 2023, 16:35–16:50, POT/0112
Estimate of Galactic Neutrino emission — •Mohadeseh Ozlati Moghadam1, Kathrin Egberts1, Constantin Steppa1, Rowan Batzofin1, and Elisa Bernardini2 — 1University of Potsdam, Potsdam, Germany — 2University of Padova, Padova, Italy
The origin of high-energy cosmic rays is an enduring mystery in science. As cosmic rays propagate through the universe, they interact with the environment, which eventually produces high-energy neutrinos as well as gamma rays.
High-energy Neutrinos are an unambiguous signal of hadronic interaction and, thus, provide valuable information about particle acceleration mechanisms and the origin of cosmic rays. On the other hand, identifying neutrino sources is a longstanding challenge. Exploiting the simultaneous production of neutrinos and gamma rays, neutrino sources are typically identified based on the tempo-spatial coincidence of variable emission of point-like objects. This has resulted in the detection of TXS 0506+056 as one extragalactic source for Neutrinos.
However, from VHE gamma-ray observation, we know there is a population of Galactic sources, some of which are expected to produce neutrinos as well. In this contribution, we use simulations of the*Galactic*population of*steady*VHE gamma-ray sources to estimate the Galactic neutrino flux. For this, a parametrization of the neutrino production for a given gamma-ray signal is used. We will present a galactic map of expected neutrino fluxes and will make a comparison with data.