Study of the polyoxymethylene and its sputtered fragments: Implications for comets

Details Study of the polyoxymethylene and its sputtered fragments: Implications for comets Study of the polyoxymethylene and its sputtered fragments: Implications for comets

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990nascp3077..405m&link_type=abstract

In its First International Conference on Laboratory Research for Planetary Atmospheres p 405-410 (SEE N90-26744 20-91)

Physics

Comets, Formaldehyde, Fragmentation, Fragments, Mass Spectra, Sputtering, Absorption Spectra, Giotto Mission, Heavy Ions, Infrared Absorption, Positive Ions, Proton Irradiation, Silicates

Scientific paper

Laboratory mass spectra of sputtered polyoxymethylene (POM) reveals a fragmentation pattern consistent with observed peaks in the PICCA experiment on board the Giotto spacecraft. Both commercially available POM and radiation synthesized POM have been used in the studies. Synthesized POM was identified using infrared absorption spectra after proton irradiation of H2CO ice on silicate grains at 20 K. Laboratory results suggest that similar type sputtering is a possible mechanism for removing species from comet grains.

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