The massive, luminous Population I Wolf-Rayet stars can be considered as stars with the highest known sustained mass loss rates. Around 10% of WR stars may form carbon-rich dust in their dense and inhomogeneous winds. Though we are yet to find how dust is formed in such an extremely hostile environment, we have made substantial progress over the past decade. Here we discuss the results of recen...

In order to investigate the change law of explosion characteristic parameters hybrid mixture coal dust and gas, then establish an effective prediction method these parameters, maximum pressure, index, lower limit gas mixtures were measured in a standard 20 L spherical system. Four different kinds selected this study they are composed with components respectively. According results, was analyzed...

Abstract The composition and structure of interstellar dust are important complex for the study evolution stars medium (ISM). However, there is a lack corresponding experimental data model theories. By theoretical calculations based on ab-initio method, we have predicted geometry optimized structures Carbon-rich (C-rich) dusts, carbon ( 12 C), iron carbide (FeC), silicon (SiC), even 28 Si), 56 ...

Ejecta from core collapse supernovae contain a few solar masses of refractory elements and can therefore be the most important source of interstellar dust if these elements condense efficiently into solids. However, infrared observations of young supernova remnants, such as Cas A or Kepler, and observations of SN 1987A have detected only ∼ 10 M⊙ of hot dust in these objects. Recently, Dunne et ...

The article is devoted to the generalization of approaches conducting forensic mining examinations in investigation explosions gas-dust mixtures coal mines. practical significance obtained results use special knowledge and other types (trasological, petrochemical, firetechnical, etc.) mines, which will ensure rapid, complete, safe investigation. A characteristic feature explosion studies that c...