A warm dust component might be observable during starburst activity (Phillips, 2005).
The dust component has a color temperature of 1410±15 K. Figure adapted from Lynch et al. (2008).
Only two of the objects studied show the MgS silicate feature, casting doubt on how common this dust component really is in more evolved AGB stars.
The P parameter is the ratio of the charge density in the dust component, calculated for isolated dust particles, relative to the background electron density.
While dust collective behavior is typically not observed in the interplanetary medium, the dust component rather consists of isolated grains screened by and interacting with the plasma.
Laboratory research under simulated interstellar medium conditions is of crucial interest for improving our understanding of the nature of this interstellar dust component.
We take the optical constants of Draine and Lee (1984) for amorphous silicate, of Li and Greenberg (1997) for carbonaceous organic refractory (to represent the carbon dust component), of Li and Greenberg (1998) for water ice.
CIGALE combines a UV-optical stellar SED with a dust component emitting in the IR and fully conserves the energy balance between the dust absorbed stellar emission and its re-emission in the IR.
The discreteness of the dust component creates fluctuations in all the components of the dusty plasma including electrons and ions which have only the fluctuations induced by dust fluctuations.
To account for the effects of dust drag in the update of the fluid quantities, we employ a fluid description of the dust component and study the modified gas-dust hyperbolic system following the approach in Miniati and Colella [19].
If one has to invoke an additional dust component (most likely a population of carbon dust which does not show the characteristic 3.4μm feature, say, graphite) making an appreciable contribution to AV, one would encounter a severe carbon budget problem (see Snow and Witt, 1996).
