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Related papers: Diffuse Neutrino and Gamma-ray Emissions of the Ga…

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In this contribution we will discuss recent results concerning the intensity and the angular distribution of the gamma-ray and neutrino emissions as should be originated from the hadronic scattering of cosmic rays (CR) with the interstellar…

Astrophysics · Physics 2007-08-02 C. Evoli , D. Grasso , L. Maccione

Recently, the MILAGRO collaboration reported on the detection of a diffuse multi-TeV emission from a region of the Galactic disk close to the inner Galaxy. The emission is in excess of what is predicted by conventional models for cosmic ray…

Astrophysics · Physics 2015-06-30 S. Gabici , A. M. Taylor , R. J. White , S. Casanova , F. A. Aharonian

We compute the gamma-ray and neutrino diffuse emission of the Galaxy on the basis of a recently proposed phenomenological model characterized by radially dependent cosmic-ray (CR) transport properties. We show how this model, designed to…

High Energy Astrophysical Phenomena · Physics 2015-12-29 Daniele Gaggero , Dario Grasso , Antonio Marinelli , Alfredo Urbano , Mauro Valli

The diffuse Galactic $\gamma$-ray emission originates from the interactions between cosmic rays and the interstellar medium or radiation fields within our Galaxy, where the production of neutrinos is also anticipated. Recently, the Large…

High Energy Astrophysical Phenomena · Physics 2025-01-28 Wenlian Li , Tian-Qi Huang , Donglian Xu , Huihai He

Diffuse $\gamma$-ray emission produced by the interaction of cosmic-ray particles with matter and radiation in the Galaxy can be used to probe the distribution of cosmic rays and their sources in different regions of the Galaxy. With its…

The high-energy diffuse gamma-ray emission and neutrino emission are expected from the Galactic plane, generated by hadronuclear interactions between cosmic rays (CR) and interstellar medium (ISM). Therefore, measurements of these diffuse…

High Energy Astrophysical Phenomena · Physics 2024-03-19 Kai Yan , Ruo-Yu Liu , Rui Zhang , Chao-Ming Li , Qiang Yuan , Xiang-Yu Wang

The origin of diffuse neutrinos and $\gamma$-rays is unknown, and galaxy clusters hosting AGN and starburst galaxies are the most probable sources of these cosmic messengers. In this work, we investigate the diffuse $\gamma$-ray and…

High Energy Astrophysical Phenomena · Physics 2026-05-13 Saqib Hussain , Gabrijela Zaharijas , Klaus Dolag

Recently the Milagro experiment observed diffuse multi-TeV gamma-ray emission in the Cygnus region, which is significantly stronger than what predicted by the Galactic cosmic ray model. However, the sub-GeV observation by EGRET shows no…

Astrophysics · Physics 2009-06-23 Xiao-Jun Bi , Tian-Lu Chen , Yue Wang , Qiang Yuan

The Tibet ASgamma experiment just reported their measurement of sub-PeV diffuse gamma ray emission from the Galactic disk, with the highest energy up to 957 TeV. These gamma-rays are most likely the hadronic origin by cosmic ray interaction…

High Energy Astrophysical Phenomena · Physics 2021-04-09 Bing-Qiang Qiao , Wei Liu , Meng-Jie Zhao , Xiao-Jun Bi , Yi-Qing Guo

We use the GALPROP cosmic ray (CR) propagation framework to model the diffuse neutrino and gamma-ray emissions from the Galaxy. A collection of realistic bounding models are developed and predictions of the resulting neutrino and gamma-ray…

High Energy Astrophysical Phenomena · Physics 2025-11-14 P. D. Marinos , T. A. Porter , G. P. Rowell , I. V. Moskalenko , G. Jóhannesson

Diffuse emission in gamma-rays and neutrinos are produced by the interaction of cosmic rays with the interstellar medium. Below some hundreds of TeV, the sources of these cosmic rays are most likely Galactic. Hence, observations of…

High Energy Astrophysical Phenomena · Physics 2025-09-25 Anton Stall , Philipp Mertsch

We set an upper limit for the total TeV neutrino flux expected from the disk of our Galaxy in the region $|l|<30^{\circ}$ and $|b|<2^{\circ}$ probed by the ANTARES experiment. We include both the diffuse emission, due to the interaction of…

High Energy Astrophysical Phenomena · Physics 2023-09-18 Vittoria Vecchiotti , Francesco L. Villante , Giulia Pagliaroli

We examine in detail the detectability of a signal of diffuse high energy neutrinos produced in the Milky Way by the interaction of cosmic rays (CRs) with the interstellar medium (ISM). We show that highly inhomogeneous galactic CR…

Astrophysics · Physics 2009-11-11 Julián Candia

The diffuse gamma radiation arising from the interaction of cosmic ray particles with matter and radiation in the Galaxy is one of the few probes available to study the origin of the cosmic rays. Milagro is a water Cherenkov detector that…

A detailed multi-messenger study of the high-energy emission from the Galactic plane is possible nowadays thanks to the observations provided by gamma and neutrino telescopes and could be mandatory in order to obtain a consistent scenario.…

High Energy Physics - Phenomenology · Physics 2018-08-29 G. Pagliaroli , F. L. Villante

In the standard picture of galactic cosmic rays, a diffuse flux of high-energy gamma-rays and neutrinos is produced from inelastic collisions of cosmic ray nuclei with the interstellar gas. The neutrino flux is a guaranteed signal for…

High Energy Astrophysical Phenomena · Physics 2023-05-31 Georg Schwefer , Philipp Mertsch , Christopher Wiebusch

Observations of the Galactic Center (GC) region in very-high-energy (VHE, >100 GeV) gamma rays, conducted with the High Energy Stereoscopic System (H.E.S.S.), led to the detection of an extended region of diffuse gamma-ray emission in 2006.…

High Energy Astrophysical Phenomena · Physics 2016-07-15 Alexander Ziegler , Christopher van Eldik

The distribution of cosmic rays in the Galaxy at energies above few TeVs is still uncertain and this affects the expectations for the diffuse gamma flux produced by hadronic interactions of cosmic rays with the interstellar gas. We show…

High Energy Astrophysical Phenomena · Physics 2020-01-08 M. Cataldo , G. Pagliaroli , V. Vecchiotti , F. L. Villante

Cosmic rays of energies up to a few PeV are believed to be of galactic origin, yet individual sources have still not been firmly identified. Due to inelastic collisions with the interstellar gas, cosmic-ray nuclei produce a diffuse flux of…

High Energy Astrophysical Phenomena · Physics 2023-09-08 Anton Stall , Leonard Kaiser , Philipp Mertsch

The Milky Way hosts astrophysical accelerators capable of producing high-energy cosmic rays. These cosmic rays can interact with the interstellar medium (ISM) across the Galaxy to produce neutrinos and gamma rays (propagation component),…

High Energy Astrophysical Phenomena · Physics 2026-02-17 Mohadeseh Ozlati Moghadam , Kathrin Egberts , Rowan Batzofin , Constantin Steppa , Elisa Bernardini
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