Results 161 to 170 of about 126,463 (267)

A dense gas survey of the gamma-ray sources HESS J1731-347 and HESS J1729-345

, 2014
The results of Mopra molecular spectral line observations towards the supernova remnant HESS J1731−347 (G353.6−0.7) and the unidentified gamma-ray source HESS J1729−345 are presented.
Maxted, Nigel I. (R19203), Renaud, Matthieu, Voisin, Fabien, Lowe, Vicki, Hawkes, Jarryd, Burton, Michael, Blackwell, Rebecca, Aharonian, Felix, Rowell, Gavin, Wilt, Phoebe de, Fukui, Yasuo   +10 more
core  

Rigidity Dependence of the Long-term Galactic Cosmic Ray Variation by AMS-02

The Astrophysical Journal
Using measurements from the Alpha Magnetic Spectrometer (AMS-02) aboard the International Space Station, we have examined the long-term variations in galactic cosmic ray (GCR) proton fluxes in 2011–2018.
R. Modzelewska, M. Siluszyk, K. Iskra, A. Gil, R. Munini, K. Marciszuk, D. Kozak-Superson   +6 more
doaj   +1 more source

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

Recent Development of Galactic γ-ray Observation and The Origin of Cosmic Rays

, 2013
The origin of the cosmic ray still remains unsolved problem since cosmic ray was discovered. Recent observation of Galactic γ-ray emission suggests that supernova remnants (SNRs) have prime candidates for production sites of Galactic cosmic rays. Here I
Asakimori, Kazuo
core  

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

Galactic centre gamma-rays from trapped cosmic rays

, 1977
The emissivity of Galactic-Center (GC) gamma-rays with energies greater than 100 MeV is calculated by assuming that primary cosmic-ray nuclei lose all their energy before escaping from the Galaxy.
Wolfendale, A. W., Worrall, D. M.
core  

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

Gamma-rays, cosmic rays, and galactic structure

, 1976
The relation of SAS-2 observations of galactic gamma-rays to the large scale distribution of cosmic rays and interstellar gas in the galaxy is reviewed.
Stecker, F. W.
core  

GeV-TeV Galactic cosmic rays

, 2013
International audienceThis short review aims at presenting the way we currently understand, model, and constrain the transport of cosmic rays in the GeV-TeV energy domain. This is a research field per se, but is also an important tool e.g. to improve our
Lavalle, Julien
core   +2 more sources

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