Results 41 to 50 of about 126,463 (267)

IMAGINE: a comprehensive view of the interstellar medium, Galactic magnetic fields and cosmic rays [PDF]

Journal of Cosmology and Astroparticle Physics, 2018
In this white paper we introduce the IMAGINE Consortium and its scientific background, goals and structure. The purpose of the consortium is to coordinate and facilitate the efforts of a diverse group of researchers in the broad areas of the interstellar
F. Boulanger, T. Ensslin, A. Fletcher, Philipp Girichides, S. Hackstein, M. Haverkorn, J. Hoerandel, T. Jaffe, J. Jasche, M. Kachelrieß, K. Kotera, C. Pfrommer, J. Rachen, L. F. Rodrigues, B. Ruiz-Granados, A. Seta, A. Shukurov, G. Sigl, Theo Steininger, V. Vacca, Ellert van der Velden, A. V. Vliet, Jiaxin Wang   +22 more
semanticscholar   +1 more source

HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon [PDF]

Nature Astronomy, 2021
Cosmic rays with energies up to a few PeV are known to be accelerated within the Milky Way1,2. Traditionally, it has been presumed that supernova remnants were the main source of these very-high-energy cosmic rays3,4, but theoretically it is difficult to
A. Abeysekara, A. Albert, R. Alfaro, C. Alvarez, J. Camacho, J. C. Arteaga-Velázquez, K. Arunbabu, D. Rojas, H. Solares, V. Baghmanyan, E. Belmont-Moreno, S. Benzvi, R. Blandford, C. Brisbois, K. Caballero-Mora, T. Capistrán, A. Carramiñana, S. Casanova, U. Cotti, S. León, E. D. L. Fuente, R. Hernández, B. Dingus, M. DuVernois, M. Durocher, J. C. Díaz-Vélez, R. Ellsworth, K. Engel, C. Espinoza, K. Fan, K. Fang, H. Fleischhack, N. Fraija, A. Galván-Gámez, D. García, J. García-González, F. Garfias, G. Giacinti, M. González, J. Goodman, J. P. Harding, S. Hernández, J. Hinton, B. Hona, D. Huang, F. Hueyotl-Zahuantitla, P. Hüntemeyer, A. Iriarte, A. Jardin-Blicq, V. Joshi, D. Kieda, A. Lara, William H. Lee, H. L. Vargas, J. Linnemann, A. Longinotti, G. Luis-Raya, J. Lundeen, K. Malone, O. Martinez, I. Martinez-Castellanos, J. Martínez-Castro, J. Matthews, P. Miranda-Romagnoli, J. Morales-Soto, E. Moreno, M. Mostafá, A. Nayerhoda, L. Nellen, M. Newbold, M. Nisa, R. Noriega-Papaqui, L. Olivera-Nieto, N. Omodei, A. Peisker, Y. Araujo, E. Pérez-Pérez, Z. Ren, C. Rho, D. Rosa-González, E. Ruiz-Velasco, H. Salazar, F. Greus, A. Sandoval, M. Schneider, H. Schoorlemmer, F. Serna, A. Smith, R. Springer, P. Surajbali, K. Tollefson, I. Torres, R. Torres-Escobedo, F. Ureña-Mena, T. Weisgarber, F. Werner, E. Willox, A. Zepeda, H. Zhou, C. D. León, J. Álvarez   +100 more
semanticscholar   +1 more source

Formation of the Cosmic-Ray Halo: Galactic Spectrum of Primary Cosmic Rays [PDF]

The Astrophysical Journal, 2020
Abstract A self-consistent model of a one-dimensional cosmic-ray (CR) halo around the Galactic disk is formulated with the restriction of a minimum number of free parameters. It is demonstrated that the turbulent cascade of MHD waves does not necessarily play an essential role in the halo formation.
V. A. Dogiel, A. V. Ivlev, D. O. Chernyshov, C.-M. Ko   +3 more
openaire   +3 more sources

The origin of cosmic rays and TeV gamma-ray astronomy

EPJ Web of Conferences, 2013
Cosmic rays are accelerated to high energies in Galactic and extragalactic objects like Supernova remnants (SNR) and active galactic nuclei (AGN). How these accelerators work and how efficient they accelerate different types of particles to energies of ...
Maier Gernot
doaj   +1 more source

Galactic cosmic rays after the AMS-02 observations

Physical Review D, 2019
The unprecedented quality of the data collected by the AMS-02 experiment onboard the International Space Station allowed us to address subtle questions concerning the origin and propagation of cosmic rays.
Carmelo Evoli, R. Aloisio, P. Blasi
semanticscholar   +1 more source

GALACTIC COSMIC RAY ANISOTROPY MODELLING

Solar-Terrestrial Physics, 2020
We calculate the angular distribution of cosmic rays at a given point of the heliosphere under the assumption that the incoming flux from outer space is isotropic. The static magnetic field is shown to cause no anisotropy provided that the observation point is situated out of the trapped particle area.
Peregoudov D.V., Soloviev A.A., Yashin I.I., Shutenko V.V.   +3 more
openaire   +4 more sources

Latest results from the DAMPE space mission [PDF]

EPJ Web of Conferences, 2023
The space-based DAMPE (DArk Matter Particle Explorer) particle detector has been taking data for more than 7 years since its successful launch in December 2015.
Cagnoli Irene, De Mitri Ivan, Silveri Leandro   +2 more
doaj   +1 more source

Deciphering the Dipole Anisotropy of Galactic Cosmic Rays. [PDF]

Physical Review Letters, 2016
Recent measurements of the dipole anisotropy in the arrival directions of Galactic cosmic rays (CRs) indicate a strong energy dependence of the dipole amplitude and phase in the TeV-PeV range.
M. Ahlers
semanticscholar   +1 more source

Assessment of galactic cosmic ray models [PDF]

Journal of Geophysical Research: Space Physics, 2012
Among several factors involved in the development of a manned space mission concept, the astronauts' health is a major concern that needs to be considered carefully. Galactic cosmic rays (GCRs), which mainly consist of high‐energetic nuclei ranging from hydrogen to iron and beyond, pose a major radiation health risk in long‐term space missions.
Mrigakshi, Alankrita Isha, Matthiä, Daniel, Berger, Thomas, Reitz, Guenther, Wimmer-Schweingruber, Robert F.   +4 more
openaire   +2 more sources

Origin of small-scale anisotropies in Galactic cosmic rays [PDF]

, 2016
The arrival directions of Galactic cosmic rays are highly isotropic. This is expected from the presence of turbulent magnetic fields in our Galactic environment that repeatedly scatter charged cosmic rays during propagation.
M. Ahlers, P. Mertsch
semanticscholar   +1 more source