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Spectroscopy studies of particulate minerals to understand the Martian aerosol.

D'Elia M., Orofino V., Fonti S., Mancarella F., Alemanno G.
  Lunedì 26/09   15:00 - 19:00   Edificio Psicologia 2 - Aula 2E   III - Astrofisica
Nadir and Occultation for MArs Discovery (NOMAD) is part of ExoMars Trace Gas Orbiter payload and it is a spectrometer aimed to measuring the spectrum of the Martian atmosphere. The goal is to search for evidence of active biological signatures or geological processes. In this context, laboratory studies of particulate Martian analogues spectra could be useful to the interpretation of NOMAD data: reflenctance spectra for Limb, Nadir and Occultation measurements, transmittance spectra, instead, for Solar Occultation observations. We present the spectroscopy studies of some materials of Martian interest as, for example, pyroxenes and carbonates which are probably among the components of atmospheric dust, their binary mixtures and the effects of the samples properties on the spectral behaviour.