Abstract An analysis has been made of the behaviour 27-day and 13.5-day periodicities in proton, C, O galactic-cosmic-ray (GCR) particles at different energies as observed by Advanced Composition Explorer (ACE) SOHO ( Solar Heliospheric Observatory ) spacecraft during both Cycles 23 24. In addition, periods solar-wind-modulation parameter $\zeta $ <mml:math xmlns:mml="http://www.w3.org/1998/Mat...

Star formation and supermassive black hole growth in galaxies appear to be self-limiting. The mechanisms for self-regulation are known as feedback. Cosmic rays, the relativistic particle component of interstellar and intergalactic plasma, are among the agents of feedback. Because cosmic rays are virtually collisionless in the plasma environments of interest, their interaction with the ambient m...

It is shown that an instanton induced interaction between quarks produces a very deeply bound H-dibaryon with mass below 2M N , M H = 1718 MeV. Therefore the H-dibaryon is predicted to be a stable particle. The reaction of photodisintegration of H-dibaryon to 2Λ in during of its penetration into cosmic microwave background will result in a new possible cutoff in the cosmic-ray spectrum. This pr...

It is shown that instanton induced interaction between quarks produces a very deeply bound H-dibaryon with mass below 2M N , M H = 1718 MeV. Therefore the H-dibaryon is predicted to be a stable particle. The reaction of photodisintegration of H-dibaryon to 2Λ in during of its penetration into cosmic microwave background will result in a new possible cutoff in the cosmic-ray spectrum. This provi...

Forty years have passed since the first Explorer orbiting observatory the 1958 mission used to discover the Van Allen radiation belts outside the atmosphere ushered in the modern age of space science. Even though in situ observations of outer space are still restricted to measurements made within the solar system, we now have access to a wide range of cosmic signals, extending from the well und...

In this paper an attempt is made to study the occurrence of a large number of high amplitude anisotropic wave train events in cosmic ray intensity during 1981-1994 and to identify a possible correlation with solar activity using the hourly neutron monitor data of Deep River station. The diurnal time of maximum for both HAE as well as for all days is found to significantly shift towards an earli...

I discuss young close-by compact objects, recent supernovae in the solar neighbourhood, and point to their connection with cosmic ray studies. Especially the role of the Gould Belt is underlined.

Supernova remnants interacting with molecular clouds are potentially exciting systems in which to detect evidence of cosmic ray acceleration. Prominent γ-ray emission is produced via the decay of neutral pions when cosmic rays encounter the nearby dense clouds. In many of the supernova remnants coincident with γ-ray sources, the presence of OH(1720 MHz) masers is used to identify interaction wi...

We give a review of cosmic ray propagation models. It is shown that the development of the theory of cosmic ray origin leads inevitably to the conclusion that cosmic ray propagation in the Galaxy is determined by effective particle scattering, which is described by spatial diffusion. The Galactic Disk is surrounded by an extended halo, in which cosmic rays are confined before escaping into inte...