Results 51 to 60 of about 69,000 (198)

Multi messenger astronomy and CTA: TeV cosmic rays and electrons

, 2012
Cosmic rays are a sample of solar, galactic and extragalactic matter. Their origin and properties are one of the most intriguing question in modern astrophysics. The most energetic events and active objects in the Universe: supernovae explosion, pulsars,
Abdo, Abdo, Ackermann, Ackermann, Adriani, Adriani, Adriani, Adriani, Aguilar, Aharonian, Aharonian, Aharonian, Aharonian, Ahlers, Ahn, Alcaraz, Alcaraz, Allen, Antoni, Antoni, Apel, Asakimori, Ave, Blasi, Boezio, Boezio, Boezio, Chang, Cirelli, Cronin, Delahaye, DuVernois, Earl, Engelmann, Erlykin, Fujita, Funk, Ginzburg, Giuliani, Gleeson, Grimani, Haino, Hareyama, Hörandel, Kamae, Kobayashi, Koyama, Maestro, Malyshev, Menn, Mirko Boezio, Müller, Nishimura, Obermeier, Piergiorgio Picozza, Ptuskin, Shaviv, Shong, Strong, Swordy, Tavani, Torii, Yoon, Zatsepin   +63 more
core   +1 more source

The Acceleration of Galactic Cosmic Rays [PDF]

Symposium - International Astronomical Union, 1981
Although it is clear that cosmic rays are of considerable astrophysical significance we know surprisingly little about their origin(s), their mode(s) of propagation and escape from the galaxy, and even of their general properties. Practically nothing is known of the composition and energy spectra of different species at energies below about 200 MeV ...
openaire   +3 more sources

Galactic PeV Neutrinos

, 2013
IceCube experiment has detected two neutrinos with energies beween 1-10 PeV. They might have originated from Galactic or extragalactic sources of cosmic rays.
Gupta, Nayantara
core   +1 more source

Cosmic-ray composition and its relation to shock acceleration by supernova remnants [PDF]

, 2007
An overview is given on the present status of the understanding of the origin of galactic cosmic rays. Recent measurements of charged cosmic rays and photons are reviewed.
Abbasi, Abbasi, Abraham, Abu-Zayyad, Abu-Zayyad, Aglietta, Aglietta, Aglietta, Aglietta, Aguirre, Aharonian, Aharonian, Aharonian, Aharonian, Ajima, Alcaraz, Amenomori, Amenomori, Amenomori, Amenomori, Amenomori, Anchordoqui, Antoni, Antoni, Antoni, Antoni, Antoni, Antoni, Arqueros, Asakimori, Atoyan, Ave, Baade, Bell, Bellotti, Belov, Berezhko, Berezhko, Berezhko, Berezinsky, Bernlöhr, Biermann, Binns, Binns, Blanford, Boezio, Candia, Chernov, Cherry, Compton, Corbato, Cutler, Derbina, Dickinson, Diehl, Ellison, Engelmann, Engelmann, Engler, Ferenc, Fermi, Fowler, Fowler, Fowler, Gahbauer, Gaisser, Garcia-Munoz, Garzia-Munoz, Glasmacher, Glasmacher, Gress, Haungs, Hillas, Hinton, Huang, Hörandel, Hörandel, Hörandel, Hörandel, Hörandel, Hörandel, Hörandel, Ichimura, Juliusson, Jörg R. Hörandel, Kalmykov, Keilhauer, Kestel, Kieda, Kobayakawa, Lagage, Lawrence, Lawrence, Lodders, Maier, Matthews, Menn, Meyer, Meyer, Minagawa, Müller, Nagano, Nagano, Navarra, Ogio, Ptuskin, Ptuskin, Ptuskin, Roulet, Ryan, Sanuki, Seo, Shibata, Shirk, Simpson, Simpson, Simpson, Smith, Stanev, Stone, Strong, Sveshnikova, Swordy, Takeda, Völk, Watson, Weekes, Wiebel-Soth, Wiedenbeck, Yanasak   +129 more
core   +4 more sources

Multiscaling of Galactic Cosmic Ray Flux

Physical Review Letters, 2003
Multiscaling analysis of differential flux dissipation rate of galactic cosmic rays (Carbon nuclei) is performed in the energy ranges: 56.3-73.4 Mev/nucleon and 183.1-198.7 MeV/nucleon, using the data collected by ACE/CRIS spacecraft instrument for 2000 year.
openaire   +3 more sources

Astrophysics of Galactic Charged Cosmic Rays [PDF]

, 2013
Invited review, to appear in Vol.5 of "Planets, Stars and Stellar Systems" Editor-in-chief: Oswalt, T.D McLean, I.S.; Bond, H.E.; French, L.; Kalas, P.; Barstow, M.; Gilmore,G.F.; Keel, W.
Castellina, Antonella, Donato, Fiorenza
openaire   +2 more sources

Investigation of the Galactic Magnetic Field with Ultra-High Energy Cosmic Rays

, 2015
We present a method to correct for deflections of ultra-high energy cosmic rays in the galactic magnetic field. We perform these corrections by simulating the expected arrival directions of protons using a parameterization of the field derived from ...
Erdmann, Martin, Mueller, Gero, Urban, Martin   +2 more
core   +1 more source

Cosmic rays from Galactic pulsars [PDF]

Astronomy & Astrophysics, 2004
We calculate energy spectra and mass composition of cosmic rays accelerated by the galactic population of pulsars during their radio and gamma-ray phase. Several models proposed for the distribution of the initial parameters of the galactic pulsar population are considered.
Bednarek, W., Bartosik, M.
openaire   +2 more sources

Cosmic rays: extragalactic and Galactic [PDF]

, 2014
From the analysis of the flux of high energy particles, $E>3\cdot 10^{18}eV$, it is shown that the distribution of the power density of extragalactic rays over energy is of the power law, ${\bar q}(E)\propto E^{-2.7}$, with the same index of $2.7$ that ...
Istomin, Ya. N.
core  

Understanding the spectral hardenings and radial distribution of Galactic cosmic rays and Fermi diffuse gamma-rays with spatially-dependent propagation

, 2018
Recent direct measurements of Galactic cosmic ray spectra by balloon/space-borne detectors reveal spectral hardenings of all major nucleus species at rigidities of a few hundred GV. The all-sky diffuse gamma-ray emissions measured by the Fermi Large Area
Guo, Yi-Qing, Yuan, Qiang
core   +1 more source