Evolution of the martian surface pressue: Implications for the planet arty surface environment

U. V. Amerstorfer, H. Lammer, T. Tokano, F. Selsis, C. Kolb, A. Bérces, G. Kovács, M. R. Patel, C. S. Cockell, Gy Rontó, T. Penz, N. Erkaev, H. K. Biernat

Research output: Conference article

1 Citation (Scopus)

Abstract

The evolution of the Martian surface pressure is important in respect to long-time stability of liquid water during the planets history. Further, due to a denser humid CO2 atmosphere, photochemical processes may produce a protecting O3 layer for organic matter and UV based reactions on Martian minerals. The time variation of the surface pressure is influenced by atmospheric loss processes of heavy neutral and ionized particles like molecular CO and CO2 or other atomic constituents caused by the solar wind interaction with atmospheric constituents above the Martian ionopause, as well as photochemical processes and chemical weathering with the surface. We present preliminary results, which focus on atmospheric erosion processes for determining the time-evolution of equivalent partial pressures of O, CO, and CO2 and the total Martian surface pressure. Further we discuss also the implications for the planetary surface environment and exobiology.

Original languageEnglish
Pages (from-to)165-166
Number of pages2
JournalEuropean Space Agency, (Special Publication) ESA SP
Issue number545
Publication statusPublished - márc. 1 2004
EventProceedings of the III European Workshop on Exo-Astrobiology - Madrid, Spain
Duration: nov. 18 2003nov. 20 2003

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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    Amerstorfer, U. V., Lammer, H., Tokano, T., Selsis, F., Kolb, C., Bérces, A., Kovács, G., Patel, M. R., Cockell, C. S., Rontó, G., Penz, T., Erkaev, N., & Biernat, H. K. (2004). Evolution of the martian surface pressue: Implications for the planet arty surface environment. European Space Agency, (Special Publication) ESA SP, (545), 165-166.