EPJ Web Conf.
Volume 136, 2017RICAP16, 6th Roma International Conference on Astroparticle Physics
|Number of page(s)||4|
|Published online||23 March 2017|
Anomalies in the gamma-ray diffuse emission of the Galaxy and implications for the interpretation of IceCube results
1 INFN and Dipartimento di Fisica “E. Fermi”, Università di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy
2 GRAPPA Institute, University of Amsterdam, Science Park 904, 1090 GL Amsterdam, The Netherlands
3 CERN, Theory division, CH-1211 Genève 23, Switzerland
4 Instituto de Fsica Terica (IFT) UAM/CSIC, calle N. Cabrera 13-15, 28049 Cantoblanco, Madrid, Spain
5 INFN and Dipartimento di Fisica, Università di Roma “la Sapienza”, Largo A. Moro, Roma, Italy
a e-mail: email@example.com
Published online: 23 March 2017
Several independent analyzes of Fermi-LAT results found evidences of an excess of γ -ray diffuse emission along the inner Galactic plane and of a related spatial dependence of the cosmic ray (CR) proton spectral index. These features are not accounted for by conventional models of CR transport. We show that a phenomenological model accounting for those results in terms of spatial dependent CR transport also reproduces the γ -ray excess found by Milagro at 15 TeV in the inner Galactic plane and by H.E.S.S. in the Galactic center. We then use that model to compute the neutrino emission along the Galactic plane finding that is significantly larger than expected on the basis of conventional models. This emission is compatible with ANTARES upper limits and may soon be detected by IceCube or, more likely, by Km3NeT.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.