Perspective on the cosmic-ray electron spectrum above TeV
arXiv:1611.10292 · doi:10.3847/1538-4357/aa5b93
Abstract
The AMS-02 has measured the cosmic ray electron (plus positron) spectrum up to ~TeV with an unprecedent precision. The spectrum can be well described by a power law without any obvious features above 10 GeV. The satellite instrument Dark Matter Particle Explorer (DAMPE), which was launched a year ago, will measure the electron spectrum up to 10 TeV with a high energy resolution. The cosmic electrons beyond TeV may be attributed to few local cosmic ray sources, such as supernova remnants. Therefore, spectral features, such as cutoff and bumps, can be expected at high energies. In this work we give a careful study on the perspective of the electron spectrum beyond TeV. We first examine our astrophysical source models on the latest leptonic data of AMS-02 to give a self-consistent picture. Then we focus on the discussion about the candidate sources which could be electron contributors above TeV. Depending on the properties of the local sources (especially on the nature of Vela), DAMPE may detect interesting features in the electron spectrum above TeV in the future.
43 pages, 15 figures
References in corpus (28)
- Observation of an anomalous positron abundance in the cosmic radiation
- Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
- Revised equipartition & minimum energy formula for magnetic field strength estimates from radio synchrotron observations
- Parameterization of Gamma, e^+/- and Neutrino Spectra Produced by p-p Interaction in Astronomical Environment
- The cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV
- Observations of the young supernova remnant RX J1713.7-3946 with the Fermi Large Area Telescope
- Measurements of 0.2 to 20 GeV/n cosmic-ray proton and helium spectra from 1997 through 2002 with the BESS spectrometer
- Galactic secondary positron flux at the Earth
- Pulsars versus Dark Matter Interpretation of ATIC/PAMELA
- H.E.S.S. observations of the supernova remnant RX J0852.0-4622: shell-type morphology and spectrum of a widely extended VHE gamma-ray source
- Galactic electrons and positrons at the Earth:new estimate of the primary and secondary fluxes
- Inverse Compton Emission from Galactic Supernova Remnants: Effect of the Interstellar Radiation Field
- Study of Nonthermal Emission from SNR RX J1713.7-3946 with Suzaku
- All-sky Galactic radiation at 45 MHz and spectral index between 45 and 408 MHz
- Gamma ray emission from SNR RX J1713.7-3946 and the origin of galactic cosmic rays
- Quantitative study of the AMS-02 electron/positron spectra: implications for the pulsar and dark matter properties
- The Slow X-Ray Expansion of the Northwestern Rim of the Supernova Remnant RX J0852.0-4622
- Radio Spectrum and Distance of the SNR HB9
- Probing the radio to X-ray connection of the Vela X PWN with Fermi LAT and H.E.S.S
- Modeling the Multi-Wavelength Emission of Shell-Type Supernova Remnant RX J1713.7-3946
- Parameterized total cross sections for pion production in nuclear collisions
- Physical and chemical inhomogeneities inside the Vela SNR shell. Indications of ejecta shrapnels
- Polarization observations of SNR G156.2+5.7 at lambda 6cm
- Fermi LAT Observation of Supernova Remnant HB9
- Analysis of GeV-band gamma-ray emission from SNR RX J1713.7-3946
- The Plasma Structure of the Southwestern Region of the Cygnus Loop with the XMM-Newton Observatory
- Radio Observations and Spectrum of the SNR G127.1+0.5 and its Central Source 0125+628
- Fermi/LAT Study of the Cygnus Loop Supernova Remnant: Discovery of a Point-like Source and of Spectral Differences in its gamma-ray emission