Optical Properties of C-rich (¹²C, SiC and FeC) Dust Layered Structure of Massive Stars*

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 Fe), investigated optical absorption coefficients emission these materials in 0D (zero-dimensional), 1D, 2D nanostructures. Comparing nebular spectra supernovae (SN) with coefficient dust, find that C, Si, Fe, SiC FeC corresponds to peak displayed infrared band (5–8) μ m spectrum at 7554 days after SN1987A explosion. It also 535 explosion SN2018bsz, when wavelength was range (0.2–0.8) (3–10) m. Nevertheless, correspond 844 SN2010jl, within (0.08–10) Therefore, may be second type ejecta SN2010jl SN2018bsz. nano-scale C-rich size ∼0.1 nm which 3 orders magnitude lower than value 0.1 In addition, due ionization reaction supernova remnant (SNR), calculated Infrared Radiation (IR) cations. We cation layered (SiC) 2+ has higher IR those 1+ neutral 0+ .