output
19942026
most citedCosmic-ray propagation and interactions in the Galaxy

1.2k citations

Showing astro-phShow all

52 papers · 1 filter

astro-ph2008★ 55 cited

Absorption Phenomena and a Probable Blast Wave in the 13 July 2004 Eruptive Event

V. V. Grechnev, A. M. Uralov, V. A. Slemzin +3

We present a case study of the 13 July 2004 solar event, in which disturbances caused by eruption of a filament from an active region embraced a quarter of the visible solar surfac…

astro-ph2008★ 4 cited

Gamma-ray halo around 3C 279: looking through the Sun on the 8th of October

Malcolm Fairbairn, Timur Rashba, Sergey Troitsky

We discuss how the solar occultations of bright sources of energetic gamma rays can be used to extract non-trivial physical and astrophysical information, including the angular siz…

astro-ph2008★ 7 cited

Testing the Dark-Energy-Dominated Cosmology by the Solar-System Experiments

Yurii V. Dumin

According to the recent astronomical data, the most part of energy in the Universe is in the 'dark' form, which is effectively described by Lambda-term in Einstein equations. All a…

astro-ph2008★ 28 cited

The influence of the Alfvénic drift on the shape of cosmic ray spectra in SNRs

V. N. Zirakashvili, V. S. Ptuskin

Cosmic ray acceleration in SNRs in the presence of the Alfvénic drift is considered. It is shown that spectra of accelerated particles may be considerably softer in the presence of…

astro-ph2008★ 106 cited

An Extreme Solar Event of 20 January 2005: Properties of the Flare and the Origin of Energetic Particles

V. V. Grechnev, V. G. Kurt, I. M. Chertok +9

The extreme solar and SEP event of 20 January 2005 is analyzed from two perspectives. Firstly, we study features of the main phase of the flare, when the strongest emissions from m…

astro-ph2008★ 27 cited

Wave instabilities in an anisotropic magnetized space plasma

N. S. Dzhalilov, V. D. Kuznetsov, J. Staude

We study wave instability in an collisionless, rarefied hot plasma (e.g. solar wind or corona). We consider the anisotropy produced by the magnetic field, when the thermal gas pres…

astro-ph2008★ 2 cited

Data acquisition system for the TUNKA-133 array

N. M. Budnev, O. B. Chvalaev, O. A. Gress +19

The new EAS Cherenkov array TUNKA-133, with about 1 km**2 sensitive area, is being installed in the Tunka Valley. The investigated energy range is 10**15-10**18 eV. It will consist…

astro-ph2008★ 25 cited

BCS approximation to the effective vector vertex of superfluid fermions

L. B. Leinson

We examine the effective interaction of nonrelativistic fermions with an external vector field in superfluid systems. In contrast to the complicated vertex equation, usually used i…

astro-ph2008★ 15 cited

Current Helicity and Twist as Two Indicators of The Mirror Asymmetry of solar Magnetic Fields

D. D. Sokoloff, H. Zhang, K. Kuzanyan +3

A comparison between the two tracers of magnetic field mirror asymmetry in solar active regions, twist and current helicity, is presented. It is shown that for individual active re…

astro-ph2008★ 104 cited

Modeling Bell's Non-resonant Cosmic Ray Instability

V. N. Zirakashvili, V. S. Ptuskin, H. J. Voelk

We have studied the non-resonant streaming instability of charged energetic particles moving through a background plasma, discovered by Bell (2004). We confirm his numerical result…

astro-ph2008★ 159 cited

Diffusive Shock Acceleration with Magnetic Amplification by Non-resonant Streaming Instability in SNRs

V. N. Zirakashvili, V. S. Ptuskin

We investigate the diffusive shock acceleration in the presence of the non-resonant streaming instability introduced by Bell (2004). The numerical MHD simulations of the magnetic f…

astro-ph2007★ 32 cited

Causal Relationships between Eruptive Prominences and Coronal Mass Ejections

Boris Filippov, Serge Koutchmy

A close association between eruptive prominences and CMEs, both slow and fast CMEs, was reported in many studies. Sometimes it is possible to follow the material motion starting fr…

astro-ph2007★ 72 cited

X-Ray Jet Dynamics in a Polar Coronal Hole Region

B. Filippov, L. Golub, S. Koutchmy

New XRT observations of the north polar region taken from the X-ray Telescope (XRT) of the Hinode (Solar-B) spacecraft are used to analyze several time sequences showing small loop…

astro-ph2007

Coriolis force corrections to g-mode spectrum in 1D MHD model

Maxim Dvornikov, Timur Rashba, Victor Semikoz

The corrections to g-mode frequencies caused by the presence of a central magnetic field and rotation of the Sun are calculated. The calculations are carried out in the simple one…

astro-ph2007★ 1.2k cited

Cosmic-ray propagation and interactions in the Galaxy

Andrew W. Strong, Igor V. Moskalenko, Vladimir S. Ptuskin

We survey the theory and experimental tests for the propagation of cosmic rays in the Galaxy up to energies of 10^15 eV. A guide to the previous reviews and essential literature is…

astro-ph2006★ 10 cited

Hemispherical transport equation: modeling of quasiparallel collisionless shocks

V. N. Zirakashvili

Using a so-called hemispherical model we derive a general transport equation for cosmic ray and thermal particles scattered in pitch angle by magnetic inhomogeneities in a moving c…

astro-ph2006★ 248 cited

Analytical solutions for energy spectra of electrons accelerated by nonrelativistic shock-waves in shell type supernova remnants

V. N. Zirakashvili, F. Aharonian

%context {Recent observations of hard X-rays and very high energy gamma-rays from a number of young shell type supernova remnants indicate the importance of detailed quantitative s…

astro-ph2006★ 8 cited

Photospheric magnetic field of the Sun: two patterns of the longitudinal distribution

E. S. Vernova, M. I. Tyasto, D. G. Baranov

Longitudinal distributions of the photospheric magnetic field studied on the base of National Solar Observatory (Kitt Peak) data (1976 - 2003) displayed two opposite patterns durin…

astro-ph2006★ 24 cited

Probing the internal solar magnetic field through g-modes

T. I. Rashba, V. B. Semikoz, S. Turck-Chieze +1

The observation of g-mode candidates by the SoHO mission opens the possibility of probing the internal structure of the solar radiative zone (RZ) and the solar core more directly t…

astro-ph2006★ 32 cited

Shining light through the Sun

Malcolm Fairbairn, Timur Rashba, Sergey Troitsky

It is shown that the Sun can become partially transparent to high energy photons in the presence of a pseudo-scalar. In particular, if the axion interpretation of the PVLAS result…

astro-ph2006★ 90 cited

Vector current conservation and neutrino emission from singlet-paired baryons in neutron stars

L. B. Leinson, A. Perez

Neutrino emission caused by singlet Cooper pairing of baryons in neutron stars is recalculated by accurately taking into account for conservation of the vector weak currents. The n…

astro-ph2006★ 28 cited

The distribution of current helicity at the solar surface at the beginning of the solar cycle

D. Sokoloff, S. D. Bao, N. Kleeorin +5

A fraction of solar active regions are observed to have current helicity of a sign that contradicts the polarity law for magnetic helicity; this law corresponds to the well-known H…

astro-ph2005★ 1 cited

The Tunka Experiment: Towards a 1-km^2 EAS Cherenkov Light Array in the Tunka Valley

N. M. Budnev, D. V. Chernov, O. A. Gress +17

The project of an EAS Cherenkov array in the Tunka valley/Siberia with an area of about 1 km2 is presented. The new array will have a ten times bigger area than the existing Tunka-…

astro-ph2005★ 16 cited

Radiative zone solar magnetic fields and g-modes

T. I. Rashba, V. B. Semikoz, J. W. F. Valle

We consider a generalized model of seismic-wave propagation that takes into account the effect of a central magnetic field in the Sun. We determine the g-mode spectrum in the pertu…