Charcoal
Practical significance
There are some astronomical observations that indicate the presence of millimeter-sized cosmic dust grains. Such is the case of comet 67P/Churyumov-Gerasimenko (Fulle et al. 2015, Rotundi et al. 2015), circumstellar disks (e.g., Andrews & Williams 2005; Canovas et al. 2015, 2016; Kataoka et al. 2016), in particular, the circumstellar disk orbiting Fomalhaut and HR 4796A (Kalas et al. 2005, Milli et al. 2017, Min et al. 2010)
Cosmic analogs density
porous
Particle size
reqV=2.15 mm (volume-equivalent sphere radius)
SEM/TEM images:
All SEM/TEM images (zip file)
Images:
All images (zip file)
Scattering matrix (1) wavelength in nm
520.00 nm
Scattering matrix (1) table
Scattering matrix (1) plot:
Refractive index
[1.8-2.3]+i[0.5-0.9] (Duley 1984, Papoular et al. 1993, and Stagg & Charalampopoulos 1993)
Angle range (deg)
[5,170]
Reference/s