On saturation of betatron acceleration of dust particles behind shock fronts

  title={On saturation of betatron acceleration of dust particles behind shock fronts},
  author={L. V. Kostyukova and V. V. Prudskikh and Y. A. Shchekinov},
  journal={Astronomy Reports},
Possible saturation of betatron acceleration of dust particles behind strong shock fronts from supernovae is considered. It is argued that the efficiency of the nonthermal dust destruction should be substantially lower than the value estimated from a traditional description of betatron acceleration of dust grains behind radiative shock waves. The inhibition of the nonthermal destruction can be connected with the mirror instability developed in the dust component behind strong shocks with the… Expand


Shock processing of interstellar grains
Shock processing plays an important role in the life of a typical interstellar grain. Shocks of 100 km/s-l or greater can destroy about 50% of the grain material under appropriate preshock conditionsExpand
Dust Destruction in the Interstellar Medium
Grains are injected into the interstellar medium (ISM) from evolved stars and supernovae; in addition, supernova ejecta may condense onto pre-existing grains before becoming well-mixed with theExpand
Destruction of Interstellar Dust
Interstellar dust is an important component of the interstellar medium. Dust grains are the dominant opacity source and thus regulate the radiative transfer in the interstellar medium. Besides theExpand
Destruction mechanisms for interstellar dust
Destruction rates are estimated for interstellar dust grains as a function of size and composition of the grains, and the type of region in which the grain is located. Several idealized models of theExpand
Propagation of hydromagnetic waves through an anisotropic plasma
The propagation of small amplitude hydromagnetic waves of a collisionless, anisotropic plasma in a strong magnetic field is treated using the Chew—Goldberger—Low (CGL) fluid equations. The Alfven,Expand
Fluid equations governing the dynamics and energetics of partially ionized dusty magnetoplasmas
A set of nonlinear equations for multi-component partially ionized dusty magnetoplasmas is developed, taking into account the contributions of frictional thermalization, collisional heating in theExpand
Interstellar Dust
In the interstellar medium of the Milky Way, certain elements – e. reside predominantly in interstellar dust grains. These grains absorb, scatter, and emit electromagnetic radiation, heat theExpand
Dust Grain Size Distributions and the Abundance of Refractory Elements in the Diffuse Interstellar Medium
We have produced models for the interactions between grains in the diffuse interstellar medium (ISM) with each other and between grains and gas atoms. The models seek to explain two powerfulExpand
▪ Abstract The Goddard High-Resolution Spectrograph (GHRS) aboard the Hubble Space Telescope (HST) has yielded precision abundance results for a range of interstellar environments, including gas inExpand
Mirror instability II: The mechanism of nonlinear saturation
Mirror mode disturbances have been reported in many different space plasma environments. We suggest that these structures are fully evolved mirror mode waves that have achieved the condition forExpand