Charging of mesospheric aerosol particles: the role of photodetachment and photoionization from meteoric smoke and ice particles

@inproceedings{Rapp2009ChargingOM,
  title={Charging of mesospheric aerosol particles: the role of photodetachment and photoionization from meteoric smoke and ice particles},
  author={Markus Rapp},
  year={2009}
}
Time constants for photodetachment, photoemission, and electron capture are considered for two classes of mesospheric aerosol particles, i.e., meteor smoke particles (MSPs) and pure water ice particles. Assuming that MSPs consist of metal oxides like Fe 2O3 or SiO, we find that during daytime conditions photodetachment by solar photons is up to 4 orders of magnitude faster than electron attachment such that MSPs cannot be negatively charged in the presence of sunlight. Rather, even… CONTINUE READING

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