Outputs (7)

Puzzles of the Cosmic Ray Anisotropy (2018)
Journal Article
Erlykin, A., Machavariani, S., & Wolfendale, A. (2019). Puzzles of the Cosmic Ray Anisotropy. Advances in Space Research, 63(1), 794-799. https://doi.org/10.1016/j.asr.2018.09.042

We discuss three of the known puzzles of the cosmic ray anisotropy in the PeV and sub-PeV energy region. They are 1) the so called inverse anisotropy, 2) the irregularity in the energy dependence of the amplitude and phase of the first harmonic and 3... Read More about Puzzles of the Cosmic Ray Anisotropy.

The anisotropy of galactic cosmic rays as a product of stochastic supernova explosions (2006)
Journal Article
Erlykin, A., & Wolfendale, A. (2006). The anisotropy of galactic cosmic rays as a product of stochastic supernova explosions. Astroparticle Physics, 25(3), 183-194. https://doi.org/10.1016/j.astropartphys.2006.01.003

We study the effect of the stochastic character of supernova explosions on the anisotropy of galactic cosmic rays below the knee. We conclude that if the bulk of cosmic rays are produced in supernova explosions the observed small and nearly energy in... Read More about The anisotropy of galactic cosmic rays as a product of stochastic supernova explosions.

The origin of cosmic rays (2005)
Journal Article
Erlykin, A., & Wolfendale, A. (2005). The origin of cosmic rays. Journal of Physics G: Nuclear and Particle Physics, 31(12), 1475-1498. https://doi.org/10.1088/0954-3899/31/12/009

It is generally regarded that the bulk of cosmic rays originate in the galaxy and that those below the 'knee' (the rapid steepening in the energy spectrum) at a few PeV, come from galactic supernovae, the particles being accelerated by the shocks in... Read More about The origin of cosmic rays.

Foreground contributions to the cosmic microwave background (2005)
Journal Article
Wibig, T., & Wolfendale, A. (2005). Foreground contributions to the cosmic microwave background. Monthly Notices of the Royal Astronomical Society, 360(1), 236-252. https://doi.org/10.1111/j.1365-2966.2005.09030.x

A detailed search has been made for evidence of residual foreground contributions to the cosmic microwave background (CMB) in the map generated by the Wilkinson Microwave Anisotropy Probe (WMAP), a map that has been (nominally) cleaned for the foregr... Read More about Foreground contributions to the cosmic microwave background.

Evidence for an extended Sunyaev-Zel'dovich effect in WMAP data (2004)
Journal Article
Myers, A., Shanks, T., Outram, P., Frith, W., & Wolfendale, A. (2004). Evidence for an extended Sunyaev-Zel'dovich effect in WMAP data. Monthly Notices of the Royal Astronomical Society, 347(4), L67-L72. https://doi.org/10.1111/j.1365-2966.2004.07449.x

We have cross-correlated the WMAP data with several surveys of extragalactic sources and find evidence for temperature decrements associated with galaxy clusters and groups detected in the APM Galaxy Survey and the Abell–Corwin–Olowin (ACO) catalogue... Read More about Evidence for an extended Sunyaev-Zel'dovich effect in WMAP data.

Cosmic ray origin: the way ahead (2003)
Journal Article
Wolfendale, A. (2003). Cosmic ray origin: the way ahead. Journal of Physics G: Nuclear and Particle Physics, 29(5), 787-800. https://doi.org/10.1088/0954-3899/29/5/301

Despite their discovery being 90 years ago cosmic rays are still characterised by their uncertain masses at high energy and their uncertain origin. This paper deals with the origin problem. The case is put for the majority of the particles being of g... Read More about Cosmic ray origin: the way ahead.

The visibility of shell-type supernova remnants in gamma rays (2003)
Journal Article
Erlykin, A., & Wolfendale, A. (2003). The visibility of shell-type supernova remnants in gamma rays. Journal of Physics G: Nuclear and Particle Physics, 29(4), 641-664. https://doi.org/10.1088/0954-3899/29/4/304

The question of the origin of the cosmic radiation (CR) is a continuing one. The idea that the shocks from supernova remnants (SNR) expanding into the interstellar medium (ISM) accelerate CR is still a popular one but a number of authors have drawn a... Read More about The visibility of shell-type supernova remnants in gamma rays.