[PDF] Top 20 Transition from Galactic to Extragalactic Cosmic Rays

... Using Occam’s razor, one may exclude the possibil- ity that the ankle is the cross-over of the fluxes of two in- dependent extragalactic populations of UHECR sources. Then the ankle has to be explained as a ... See full document

... This puzzling situation, with different experiments favoring different scenarios, shows the importance of a systematic study of the propagation of UHECR in astrophysical backgrounds. In the present paper we will present ... See full document

... the Galactic CR spectrum at energies much lower than the ankle represents a change of paradigm and a source of active debate on the nature of the transition to extragalactic CRs, as well as on the ... See full document

... changing from proton to heavier nuclei in this energy range, has not associated the observed spectral features with a particular physics ...the galactic heavy components corresponding to a galactic ... See full document

... the transition to intergalactic ...rotation from weak interstellar and intergalactic fields (Beck, 2008). “Cosmic magnetism” is the title of Key Science Projects for LOFAR and ... See full document

... the transition region between the dominance of Galactic and extragalactic ...originate from a population (or even multiple populations) of relatively weak extragalactic ... See full document

... the cosmic ray energy spectrum between 10 16 eV and 10 18 ...extra- galactic protons, hence, at these energies the composition is already proton dominant and the transition between galac- tic and ... See full document

... flux from extragalactic sources ...a Galactic or extragalactic origin is still an open question, since the sample collected so far (37 events) does not allow firm statistical ...of ... See full document

... observe from the results that the deflection angles are very small for the considered ...the cosmic ray spectrum, good angular resolution and the uniform exposure over the whole sky is ... See full document

... energy Cosmic Ray particles around the spectral turn-down commonly called the knee and up to the upturn, commonly called the ankle, mostly come from Blue Super Giant star ...ankle, Cosmic Rays ... See full document

... predictions from population synthesis models that explain the hard spectrum of the CXB using different assumptions about obscuration, the Compton-thick sample, and the spectra shape of AGN in the hard X-ray band ( ... See full document

... quoted from Howard (1974) and Solar Geophysical Data published monthly by ...Commerce. From these data, the sidereal and anti-sidereal daily variations are derived in the following combined pe- riods A P, ... See full document

... the galactic cosmic radiation in the interplanetary medium is observed as the daily variation of cosmic ray intensity by the ground based ...arriving from the asymptotic direction 1800 hours ... See full document

... dence angle of 𝜃 = 60 ◦ (cos 60 ◦ = 0 . 5). That is, half the incoming particles have 𝜃 < 60 ◦ and are deposited below z m , while the other half have 𝜃 > 60 ◦ and are deposited above z m . Therefore, we take the ... See full document

... Generalization of the homogeneous normal diffusion model to the case of inhomogeneous (fractal-like) ISM, has been made for the first time in our papers [12,13]. Later, it was shown [11, 14–16] that an anomalous ... See full document

... radiation from the central T Tauri and protostars plays an impor- tant role in shaping protoplanetary disks and influences their ...emission. Cosmic rays, i.e., high-energy particles either ... See full document

... EAS from their time traces shapes, amplitude and po- larization patterns or frequency content (see section ...to cosmic rays in the energy range 10 ... See full document

... ical view, the atmospheric muon neutrino flux is reduced to zero at these energies. This would, again theoretically, reduce the background to zero, such that a single signal event would become significant. Of course, ... See full document

... but the more important di ff erence between the two models is their particular parametric choices for the model compo- nents, such as for instance the thickness and pitch angles of the spiral arms. Both models give a ... See full document

... The numerical model was applied to the Bartel-rotation averaged AMS02 data from May 2011 to May 2017 [1] and to the Bartel-rotation averaged PAMELA data from June 2006 to January 2014 [2]. The model has six ... See full document