Self-generated cosmic-ray turbulence can explain the morphology of TeV halos

  title={Self-generated cosmic-ray turbulence can explain the morphology of TeV halos},
  author={Payel Mukhopadhyay and Tim Linden},
  journal={Physical Review D},
Observations have shown that spatially extended “TeV halos” are a common (and potentially generic) feature surrounding young and middle-aged pulsars. However, their morphology is not understood. They are larger than the “compact” region where the stellar remnant dominates the properties of the interstellar medium, but smaller than expected in models of cosmic-ray diffusion through the standard interstellar medium. Several explanations have been proposed, but all have shortcomings. Here, we… 
Self-confinement of low-energy cosmic rays around supernova remnants
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The Physics of Pulsar Halos: Research Progress and Prospect
  • Ruo-Yu Liu
  • Physics
    International Journal of Modern Physics A
  • 2022
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We explore the trapping of cosmic rays produced by a supernova in a dense molecular cloud and the implications for COS B ..gamma..-ray sources. After an extensive study of the Alfven wave streaming
Constraining the Magnetic Field in the TeV Halo of Geminga with X-Ray Observations
Recently, the High Altitude Water Cherenkov (HAWC) collaboration reported the discovery of a TeV halo around the Geminga pulsar. The TeV emission is believed to originate from the inverse Compton
Constraining the properties of the magnetic turbulence in the Geminga region using HAWC γ-ray data
Observations of extended gamma-ray emission around Galactic cosmic-ray (CR) sources can be used as novel probes of interstellar magnetic fields. Using very-high-energy gamma-ray data from the HAWC
Studying Galactic interstellar turbulence through fluctuations in synchrotron emission
The characteristic outer scale of turbulence and the ratio of the random to ordered components of the magnetic field are key parameters to characterise magnetic turbulence in the interstellar gas,
Cosmic-Ray Propagation in Light of the Recent Observation of Geminga
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The instability in the cosmic-ray precursor of a supernova shock moving in interstellar medium is studied. The level of magnetohydrodynamic turbulence in this region determines the maximum energy of
Two-zone Diffusion of Electrons and Positrons from Geminga Explains the Positron Anomaly
The recent HAWC observations of a very-high-energy γ-ray halo around Geminga and Monogem indicate a very slow diffusion of cosmic rays that results in a tiny contribution of positrons from these two