Results 151 to 160 of about 186,144 (251)

Testing Cosmic-Ray Propagation Scenarios with AMS-02 and Voyager Data

The Astrophysical Journal
AMS-02 on board the International Space Station provides precise measurements of cosmic rays (CR) near Earth, while Voyager measures CRs in the local interstellar medium, beyond the effects of solar modulation.
Ethan Silver, Elena Orlando
doaj   +1 more source

Global Analysis of the Extended Decreases in Cosmic Rays Observed with Worldwide Networks of Neutron Monitors and Muon Detectors: Temporal Variation of the Rigidity Spectrum and Its Implication

The Astrophysical Journal
This paper presents the global analysis of two extended decreases in the galactic cosmic-ray intensity observed by worldwide networks of ground-based detectors in 2012.
K. Munakata, Y. Hayashi, M. Kozai, C. Kato, N. Miyashita, R. Kataoka, A. Kadokura, S. Miyake, K. Iwai, E. Echer, A. Dal Lago, M. Rockenbach, N. J. Schuch, J. V. Bageston, C. R. Braga, H. K. Al Jassar, M. M. Sharma, M. L. Duldig, J. E. Humble, I. Sabbah, P. Evenson, T. Kuwabara, J. Kóta   +22 more
doaj   +1 more source

SAS-2 observations of the high energy gamma radiation from the Vela region [PDF]

Data from a scan of the galactic plane by the SAS-B high energy gamma ray experiment in the region 250 deg smaller than 12 smaller than 290 deg show a statistically significant excess over the general radiation from the galactic plane for gamma radiation
Bignami, G. F., Fichtel, C. E., Kniffen, D. A., Thompson, D. J.   +3 more
core   +1 more source

Small-scale Cosmic-Ray Anisotropy Observed by the GRAPES-3 Experiment at TeV Energies

The Astrophysical Journal
GRAPES-3 is a mid-altitude (2200 m) and near-equatorial (11.°4N) air shower array, overlapping in its field of view for cosmic-ray observations with experiments that are located in the Northern and Southern Hemispheres. We analyze a sample of 3.7 × 10 ^9
M. Chakraborty, S. Ahmad, A. Chandra, S. R. Dugad, U. D. Goswami, S. K. Gupta, B. Hariharan, Y. Hayashi, P. Jagadeesan, A. Jain, P. Jain, S. Kawakami, T. Koi, H. Kojima, S. Mahapatra, P. K. Mohanty, R. Moharana, Y. Muraki, T. Nakamura, P. K. Nayak, T. Nonaka, A. Oshima, B. P. Pant, D. Pattanaik, S. Paul, G. S. Pradhan, M. Rameez, K. Ramesh, S. Saha, R. Sahoo, R. Scaria, S. Shibata, T. Tabata, H. Takamaru, K. Tanaka, F. Varsi, K. Yamazaki, M. Zuberi   +37 more
doaj   +1 more source

Voyager 1 Data Reveals Signatures of the Local Gas and Cosmic-Ray Source Distributions

The Astrophysical Journal
We investigate the effects of the nearby interstellar medium (ISM) on the locally measured cosmic-ray (CR) spectra. Using the G al P rop code, we explore how variations in the local gas and source distributions affect spectral features at low energies ...
T. A. Porter, I. V. Moskalenko, A. C. Cummings, G. Jóhannesson   +3 more
doaj   +1 more source

Raios cósmicos e a heliosfera

Revista Brasileira de Ensino de Física
Este texto sintetiza a modulação pelas partículas do fluxo de raios cósmicos galáticos durante seu transporte na heliosfera, fornecendo algumas referências necessárias para a compreensão do assunto aos interessados no tema.
A.G. Izzo de Oliveira, M. Rockenbach, A.A. Pacini   +2 more
doaj   +1 more source

Extra-Galactic Cosmic Rays [PDF]

Progress of Theoretical Physics, 1964
Yoichi Fujimoto, Hiroichi Hasegawa, Mituo Taketani   +2 more
openaire   +1 more source

Galactic Cosmic-Rays after AMS02

, 2019
Presentation given at the "Anti-deuteron 2019" conference at UCLA (Los Angeles) on March 27, 2019. Abstract: The current generation of cosmic-ray (CR) experiments in the GeV-TeV range has reached an unprecedented level of precision, unveiling fine-details of the energy spectra. The interpretation of these measurements could require a profound revision
openaire   +1 more source

The Correspondence between Leaky-box and Diffusion Models of Cosmic-Ray Propagation

The Astrophysical Journal
The leaky-box model and the attendant concept of path-length distribution of cosmic rays were invented in the mid-1960s. Even though versatile computational packages such as GALPROP and DRAGON with the diffusion approach are now available for analyzing ...
Ramanath Cowsik, Dawson Huth
doaj   +1 more source

Influence of the source distribution on the age distribution of galactic cosmic rays [PDF]

The age distribution of galactic cosmic rays in the diffusion approximation is calculated. The influence of the scale height of the spatial source distribution on the mean age of particles arriving at the solar system is discussed. The broader the source
Lerche, I., Schlickeiser, R.
core   +1 more source