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

Yuri G. Serezhkin

doi:10.1117/12.375082

30 December 1999 Lightning in the atmosphere of a comet and the origins of prebiological systems

Yuri G. Serezhkin

Proceedings Volume 3755, Instruments, Methods, and Missions for Astrobiology II; (1999) https://doi.org/10.1117/12.375082
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

Abstract

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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Yuri G. Serezhkin "Lightning in the atmosphere of a comet and the origins of prebiological systems", Proc. SPIE 3755, Instruments, Methods, and Missions for Astrobiology II, (30 December 1999); https://doi.org/10.1117/12.375082

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