Dusty plasmas are known to support a diverse range of instabilities, including both generalizations standard plasma instabilities and ones caused by effects specific dusty systems. It has been recently demonstrated that novel broad class streaming termed resonant drag (RDIs), can be attributed particular resonance phenomenon, manifested defective eigenvalues the linearized dust/fluid system. In...

Only a few solar-type main-sequence stars are known to be orbited by warm dust particles; the most extreme is the G0 field star BD +20 307 that emits 4% of its energy at mid-infrared wavelengths. We report the identification of a similarly dusty star HD 23514, an F6-type member of the Pleiades. A strong mid-IR silicate emission feature indicates the presence of small warm dust particles, but wi...

We investigate the prospects for detecting dust from two body collisions during the late stages of planet formation at 1–150 AU. We develop an analytic model to describe the formation of a dusty cloud of debris and use numerical coagulation and n-body calculations to predict observable signals from these events. In a minimum mass solar nebula, collisions of 100–1000 km objects at distances of 3...

Dusty galaxies with luminosities in excess of 10 L⊙ have been detected out to redshifts z ∼ 1 by the Infrared Space Observatory (ISO), and to higher redshifts using millimetre(mm)and submm-wave cameras on ground-based telescopes. The integrated properties of these more distant galaxies are also constrained by measurements of the intensity of the submm-wave background radiation. While it is gene...

A Fokker-Planck equation with velocity-dependent coefficients is considered for various isotropic systems on the basis of probability transition (PT) approach. This method provides a self-consistent and universal description of friction and diffusion for Brownian particles. Renormalization of the friction coefficient is shown to occur for two-dimensional and three-dimensional cases, due to the ...

The characteristics of arbitrary amplitude dust ion acoustic solitary waves (DIASWs) are studied in unmagnetized dusty plasmas whose constituents are cold uid ions, nonextensive electrons and stationary negative/positive dust particles. The pseudopotential approach has been used to investigate the structure of localized waves. It is found that, solitary waves exist in a definite interval for th...

This expectation is supported by the results of many observational studies with ISO, SCUBA, and now Spitzer, which provide evidence of strong evolution in number density and luminosity of dusty starbursts at z>1 (Elbaz et al. 2002; Chapman et al. 2003; Marleau et al. 2004; Yan et al. 2004; Le Floch et al. 2004). Therefore, high-z, dusty infrared luminous sources are believed to play a critical ...