Diffuse Emission of Galactic High-energy Neutrinos from a Global Fit of Cosmic Rays
The Astrophysical Journal, vol. 949, pp. 16
Abstract
Abstract 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 neutrino observatories such as IceCube but has not been found yet. Experimental searches for this flux constitute an important test of the standard picture of Galactic cosmic rays. Both observation and nonobservation would allow important implications for the physics of cosmic-ray acceleration and transport. We present CRINGE, a new model of Galactic diffuse high-energy gamma rays and neutrinos, fitted to recent cosmic-ray data from AMS-02, DAMPE, IceTop, as well as KASCADE. We quantify the uncertainties for the predicted emission from the cosmic-ray model but also from the choice of source distribution, gas maps, and cross sections. We consider the possibility of a contribution from unresolved sources. Our model predictions exhibit significant deviations from older models. Our fiducial model is available at https://doi.org/10.5281/zenodo.7859442 .
Authors 3
-
Georg Schwefer corresponding Aachen Institute for Theoretical Particle Physics and Cosmology III. Physikalisches Institut B
RWTH Aachen University · Max Planck Institute for Nuclear Physics
Affiliation as printed
III. Physikalisches Institut B, RWTH Aachen University, D-52056 Aachen, Germany
Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, 52056 Aachen, Germany; georg.schwefer@mpi-hd.mpg.de
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany
Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, 52056 Aachen, Germany
-
Affiliation as printed
Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, 52056 Aachen, Germany; georg.schwefer@mpi-hd.mpg.de
Institute for Theoretical Particle Physics and Cosmology (TTK), RWTH Aachen University, 52056 Aachen, Germany
-
Affiliation as printed
III. Physikalisches Institut B, RWTH Aachen University, D-52056 Aachen, Germany
Cited by 41 stored of 43
No patents citing this paper on Lens.org (checked 2026-10-06).