منابع مشابه
Time Delays in Cosmic Ray Propagation
Cosmic Rays (CR) travel at speeds essentially indistinguishable from the speed of light. However whilst travelling through magnetic fields, both regular and turbulent, they are delayed behind the light since they are usually charged particles and their paths are not linear. Those delays can be so long that they are an impediment to correctly identifying sources which may be variable in time. Fu...
متن کاملCosmic-Ray Spectra in Interstellar Space
At energies below ~300 MeV/nuc our knowledge of cosmic-ray spectra outside the heliosphere is obscured by the energy loss that cosmic rays experience during transport through the heliosphere into the inner solar system. This paper compares measurements of secondary electron-capture isotope abundances and cosmic-ray spectra from ACE with a simple model of interstellar propagation and solar modul...
متن کاملSupernova remnants in molecular clouds: on cosmic ray electron spectra
The particle acceleration process at a shock wave, in the presence of the second-order Fermi acceleration in the turbulent medium near the shock, is discussed as an alternative explanation for the observed flat synchrotron spectra of supernova remnants (SNRs) in molecular clouds. We argue that medium Alfvén Mach number shocks considered by Chevalier (1999) for such SNRs can naturally lead to th...
متن کاملCosmic Ray Spectra in Nambu-Goldstone Dark Matter Models
Masahiro Ibe, Hitoshi Murayama, 3 Satoshi Shirai, 3 and Tsutomu T. Yanagida 4 SLAC National Accelerator Laboratory, Menlo Park, CA 94025 Department of Physics, University of California, Berkeley, and Theoretical Physics Group, LBNL, Berkeley, CA 94720 Institute for the Physics and Mathematics of the Universe, University of Tokyo, Kashiwa 277-8568, Japan. Department of Physics, University of Tok...
متن کاملOn the Energy Spectra of GeV/TeV Cosmic Ray Leptons
Recent observations of cosmic ray electrons from several instruments have revealed various degrees of deviation in the measured electron energy distribution from a simple power-law, in a form of an excess around 0.1 to 1TeV energies. An even more prominent deviation and excess has been observed in the fraction of cosmic ray positrons around 10 and 100GeV energies. These observations have receiv...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2013
ISSN: 1742-6596
DOI: 10.1088/1742-6596/409/1/012002