Diamond phase in space and the possibility of its spectroscopic detection
arXiv:2405.17584 · doi:10.3367/UFNe.2024.02.039656
Abstract
The eventual presence of the diamond carbon allotrope in space is discussed in numerous theoretical and experimental studies. The review summarizes the principal mechanisms of nanodiamond formation and experimental results of spectroscopic and structural investigations of nano- and microdiamonds from meteorites. The size dependence of diamond spectroscopic properties is discussed. Infrared spectroscopy allows detection of C-H bonds on surfaces of hot nanodiamond grains. Spectroscopic observation of nitrogen-related point defects in nanodiamonds is very challenging; moreover, such defects have never been observed in nanodiamonds from meteorites. At the same time, photoluminescence and, eventually, absorption of some impurity-related defects, in particular, of the silicon-vacancy (SiV) center, observed in real meteoritic nanodiamonds opens the possibility of diamond detection in astronomical observations.
References in corpus (13)
- A survey for nanodiamond features in the 3 micron spectra of Herbig Ae/Be stars
- Size-dependent thermal stability and optical properties of ultra-small nanodiamonds synthesized under high pressure
- Xenon in Mercury-Manganese Stars
- Fano-type effect in hydrogen-terminated pure nanodiamond
- A refined analysis of the remarkable Bp star HR 6000
- The Anomalous Formation of Irradiation Induced Nitrogen-Vacancy Centers in 5-Nanometer-Sized Detonation Nanodiamonds
- Anomalous enhancement of nanodiamond luminescence upon heating
- Photoluminescence of silicon-vacancy defects in nanodiamonds of different chondrites
- Inelastic neutron scattering: A novel approach towards determination of equilibrium isotopic fractionation factors. Size effects on heat capacity and beta-factor of diamond
- Diamonds and PAHs in the Circumstellar Environment of the Herbig Ae/Be Star Elias 1
- Behavior of implanted Xe, Kr and Ar in nanodiamond and thin graphene stacks: experiment and modeling
- Structural peculiarities, mineral inclusions and point defects in yakutites -- a variety of impact-related diamond
- On possibility of detection of emission from nanodiamonds in vicinity of stellar objects: laboratory spectroscopy and observational data