Interpretation of AMS-02 electrons and positrons data

By M. Mauro, F. Donato, N. Fornengo, R. Lineros, A. Vittino. 2014

147 citations recorded by the source corpus.

We perform a combined analysis of the recent AMS-02 data on electrons, positrons, electrons plus positrons and positron fraction, in a self-consistent framework where we realize a theoretical modeling of all the astrophysical components that can contribute to the observed fluxes in the whole energy range. The primary electron contribution is modeled through the sum of an average flux from distant sources and the fluxes from the local supernova remnants in the Green catalog. The secondary electron and positron fluxes originate from interactions on the interstellar medium of primary cosmic rays, for which we derive a novel determination by using AMS-02 proton and helium data. Primary positrons and electrons from pulsar wind nebulae in the ATNF catalog are included and studied in terms of their most significant (while loosely known) properties and under different assumptions (average contribution from the whole catalog, single dominant pulsar, a few dominant pulsars). We obtain a remarkable agreement between our various modeling and the AMS-02 data for all types of analysis, demonstrating that the whole AMS-02 leptonic data admit a self-consistent interpretation in terms of astrophysical contributions.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/c8d27dc933e7b31e3f162850965f6a303ef24f5d

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In Astronomy and Astrophysics

1. V. Vaskonen
2. V. Poulin
3. P. Serpico
4. P. Salati
5. Marco Cirelli
6. K. Tuominen
7. Tommi Tenkanen
8. N. Bernal

In Nuclear and High Energy Physics

1. Marco Cirelli
2. V. Poulin
3. P. Serpico
4. V. Vaskonen
5. P. Salati
6. K. Tuominen
7. Tommi Tenkanen
8. N. Bernal

Citations in the corpus

• The Dawn of FIMP Dark Matter: A Review of Models and Constraints (2017, background): “[125, 126]), DM annihilations can also be involved (see e.”
• AMS-02 antiprotons, at last! Secondary astrophysical component and immediate implications for Dark Matter (2015, background): “For instance, a string of recent papers, based on synchrotron radio emission [32–35] but also on positrons [15, 36] and somewhat also on gamma rays [37], finds that the thin halo predicted by Min is seriously disfavored.”