Lightning in the atmosphere of a comet and the origins of prebiological systems

Details Lightning in the atmosphere of a comet and the origins of prebiological systems Lightning in the atmosphere of a comet and the origins of prebiological systems

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999spie.3755..242s&link_type=abstract

Proc. SPIE Vol. 3755, p. 242-250, Instruments, Methods, and Missions for Astrobiology II, Richard B. Hoover; Ed.

Biology

Scientific paper

Theme of the report is the putting of a question about existence prebiotic conditions, i.e, applicable atmospheric composition and energy sources, in particular of electric discharges, for synthesis prebiological systems in cometary atmosphere. In this work are discussed the processes leading to separation of charges in cometary atmosphere, they're accruing and subsequent discharges are occur, the estimation of these charges is made. It is supposed that from a surface of flying away corpuscles and crystals of ice there is a sublimation of gas and the charging of a surface of corpuscles. In a result in near-surface layer of a cometary atmosphere the charged layer is formed. The field intensity between layer and surface of a comet reaches 500 V/m, that it is enough for development of discharge similar to a lightning in high layers Earth's atmosphere. The estimation of energy freed at lightning's discharge in an atmosphere of a comet is made. It is offered to detect lightning's over radio emission, the intensity of this radio emission is evaluated. The role of a surface of a cometary nucleus and large corpuscles is considered as a skeleton for formation of prebiological systems.

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