@article{EichlerKumarPohl2013,
  author    = {Eichler, David and Kumar, Rahul and Pohl, Martin},
  title     = {Is the galatic cosmic-ray spectrum constant in time?},
  series = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
  volume    = {769},
  journal   = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
  number    = {2},
  publisher = {IOP Publ. Ltd.},
  address   = {Bristol},
  issn      = {0004-637X},
  doi       = {10.1088/0004-637X/769/2/138},
  pages     = {4},
  year      = {2013},
  abstract  = {The hypothesis is considered that the present, local Galactic cosmic-ray spectrum is, due to source intermittency, softer than average over time and over the Galaxy. Measurements of muogenic nuclides underground could provide an independent measurement of the time-averaged spectrum. Source intermittency could also account for the surprising low anisotropy reported by the IceCube Collaboration. Predictions for Galactic emission of ultrahigh-energy (UHE) quanta, such as UHE gamma rays and neutrinos, might be higher or lower than previously estimated.},
  language  = {en}
}
@article{PohlEichler2013,
  author    = {Pohl, Martin and Eichler, David},
  title     = {Understanding TeV-band cosmic-ray anistropy},
  series = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
  volume    = {766},
  journal   = {The astrophysical journal : an international review of spectroscopy and astronomical physics},
  number    = {1},
  publisher = {IOP Publ. Ltd.},
  address   = {Bristol},
  issn      = {0004-637X},
  doi       = {10.1088/0004-637X/766/1/4},
  pages     = {9},
  year      = {2013},
  abstract  = {We investigate the temporal and spectral correlations between flux and anisotropy fluctuations of TeV-band cosmic rays in light of recent data taken with IceCube. We find that for a conventional distribution of cosmic-ray sources, the dipole anisotropy is higher than observed, even if source discreteness is taken into account. Moreover, even for a shallow distribution of galactic cosmic-ray sources and a reacceleration model, fluctuations arising from source discreteness provide a probability only of the order of 10\% that the cosmic-ray anisotropy limits of the recent IceCube analysis are met. This probability estimate is nearly independent of the exact choice of source rate, but generous for a large halo size. The location of the intensity maximum far from the Galactic Center is naturally reproduced.},
  language  = {en}
}