Interpretation of AMS-02 electrons and positrons data
@article{Mauro2014InterpretationOA, title={Interpretation of AMS-02 electrons and positrons data}, author={Mattia di Mauro and Fiorenza Donato and Nicolao Fornengo and Roberto A Lineros and Andrea Vittino}, journal={arXiv: High Energy Astrophysical Phenomena}, year={2014} }
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…
Figures and Tables from this paper
115 Citations
Interpretation of AMS-02 positrons data with secondary production and pulsars
- PhysicsThird International Conference on Optoelectronic Science and Materials (ICOSM 2021)
- 2021
We establish a theoretical model, which includes the flux from the secondary production and pulsar wind nebulae, to analyze recent positron data derived from AMS-02. We model the primary positron…
Novel interpretation of the latest AMS-02 cosmic-ray electron spectrum
- PhysicsPhysical Review D
- 2021
The latest AMS-02 data on cosmic ray electrons show a break in the energy spectrum around 40 GeV, with a change in the slope of about 0.1. We perform a combined fit to the newest AMS-02 positron and…
Constraining positron emission from pulsar populations with AMS-02 data
- PhysicsJournal of Cosmology and Astroparticle Physics
- 2021
The cosmic-ray flux of positrons is measured with high precision by the space-borne particle spectrometer AMS-02. The hypothesis that pulsar wind nebulae (PWNe) can significantly contribute to the…
Dipole anisotropy in cosmic electrons and positrons: inspection on local sources
- Physics
- 2016
The cosmic electrons and positrons have been measured with unprecedented statistics up to several hundreds GeV, thus permitting to explore the role that close single sources can have in shaping the…
Emission of cosmic rays from Pulsar wind nebulae
- PhysicsJournal of Physics: Conference Series
- 2021
The goal of the paper is to interpret AMS-02 positron data. Most of the positrons come from secondary production which can fit well the data below 10 GeV. However, above 10 GeV the positron flux…
Features in the spectrum of cosmic-ray positrons from pulsars
- PhysicsPhysical Review D
- 2018
Pulsars have been invoked to explain the origin of recently observed high-energy Galactic cosmic-ray positrons. Since the positron propagation distance decreases with energy, the number of pulsars…
Spectrum and fraction of cosmic ray positrons: results of the anomalous diffusion approach
- Physics
- 2015
We present the results of new calculations of the energy spectra of cosmic ray electrons, positrons and also positron fraction under assumption that both electrons and positrons are generated by the…
Features in cosmic-ray lepton data unveil the properties of nearby cosmic accelerators
- PhysicsJournal of Cosmology and Astroparticle Physics
- 2020
We present a comprehensive discussion about the origin of the features in the leptonic component of the cosmic-ray spectrum. Working in the framework of a up-to-date CR transport scenario tuned on…
Contribution of supernova remnants to the cosmic-ray electron AMS-02 data
- PhysicsJournal of Physics: Conference Series
- 2021
The Alpha Magnetic Spectrometer (AMS-02) experiment on board of the International Space Station is revolutionizing our understanding of cosmic rays. AMS-02 Collaboration has released the most precise…
References
SHOWING 1-10 OF 236 REFERENCES
Galactic electrons and positrons at the Earth: new estimate of the primary and secondary fluxes
- Physics
- 2010
Context. The so-called excess of cosmic ray (CR) positrons observed by the PAMELA satellite up to 100 GeV has led to many interpretation attempts, from standard astrophysics to a possible exotic…
Possible Contribution to Electron and Positron Fluxes from Pulsars and their Nebulae
- Physics
- 2014
The AMS-02 experiment confirms the excess of positrons in cosmic rays (CRs) for energy above 10 GeV with respect to the secondary production of positrons in the interstellar medium. This is…
Galactic secondary positron flux at the Earth
- Physics
- 2009
Context. Secondary positrons are produced by spallation of cosmic rays within the interstellar gas. Measurements have been typically expressed in terms of the positron fraction, which exhibits an…
Pulsars versus dark matter interpretation of ATIC/PAMELA
- Physics
- 2009
In this paper, we study the flux of electrons and positrons injected by pulsars and by annihilating or decaying dark matter in the context of recent ATIC, PAMELA, Fermi, and HESS data. We review the…
Dissecting cosmic-ray electron-positron data with Occam’s razor: the role of known pulsars
- Physics
- 2011
We argue that both the positron fraction measured by PAMELA and the peculiar spectral features reported in the total electron-positron flux measured by ATIC have a very natural explanation in…
The Energy Spectra and Relative Abundances of Electrons and Positrons in the Galactic Cosmic Radiation
- Physics
- 1997
Observations of cosmic-ray electrons and positrons have been made with a new balloon-borne detector, the High-Energy Antimatter Telescope (HEAT), which was first flown in 1994 May from Fort Sumner,…
Pulsars as the sources of high energy cosmic ray positrons
- Physics
- 2009
Recent results from the PAMELA satellite indicate the presence of a large flux of positrons (relative to electrons) in the cosmic ray spectrum between approximately 10 and 100 GeV. As annihilating…
Three-dimensional model of cosmic-ray lepton propagation reproduces data from the Alpha Magnetic Spectrometer on the International Space Station.
- PhysicsPhysical review letters
- 2013
It is shown that in this approach, and accounting for AMS-02 results, the contribution of nearby accelerators to the fluxes at very high energy can be significantly reduced, thus avoiding any tension with anisotropy upper limits.