The electrolytical processes in dirty ices: Implications for origin and chemistry of minor bodies and related objects

Details The electrolytical processes in dirty ices: Implications for origin and chemistry of minor bodies and related objects The electrolytical processes in dirty ices: Implications for origin and chemistry of minor bodies and related objects

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995adspr..16...73d&link_type=abstract

Advances in Space Research (ISSN 0273-1177), vol. 16, no. 2, p. (2)73-2(84)

Other

8

Asteroids, Chemical Explosions, Comet Nuclei, Electrolysis, Ice, Protoplanets, Convection, Electric Current, Gas Giant Planets, Halley'S Comet, Organic Solids, Planetary Magnetospheres, Space Plasmas

Scientific paper

Many moonlike bodies (M approximately equal to 1 Moon) beyond the Martian orbit contain large amounts of dirty ice (approximately 50%) forming a thick mantle with the solid phase thermal convection. When a body moves through the inter- or nearplanetray magnetized plasma, electric current is generated in the body and its environment. The current passing through a dirty ice containing up to 10% organic admixtures produces a lot of electrochemical effects which have a profound impact on its composition. At this stage one can hardly say something definite concerning changes experienced by organics. The changes must occur inevitably and can be of a rather unexpected and far-reaching nature, thus deserving close study. Another obvious effect is a volumetric electrolysis of ice containing alien inclusions. The electrolysis products accumulate in ice in the form of a solid solution which is capable of detonation at 15-20 wt.% of 2H2 + O2. If M is greater that or approximately equal to 1 Moon (Galilean satellites, Titan), the body loses in explosion a part of its mass in the form of vapor and ice fragments (i.e. short-period (SP) comet nuclei), whereas if M is less than or approximately equal to 0.2 Moon, the body breaks up totally (the Main Belt (MB) asteroids origin approximately 3.9 Byr ago). 2H2 + O2 containing cometary nuclei are capable of burning or suffering new explosions when receiving additional energy. The combustion in the sublimation products containing light organics and 2H2 + O2 explains unexpected energetics and near-nuclear chemistry of Comet P/Halley (e.g. great abundances of negative and positive ions, atomic carbon, Co over CO2, origin of CHON particles, etc) and its distant outbursts correlated, possibly with Solar activity. Thus the electrochemical processes in the dirty ice with organics, along with its subsequent thermal, radiative etc. processing, open up new potentials for explanation and prediction of quite unexpected discoveries.

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