Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...320l.149h&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 320, Sept. 15, 1987, p. L149-L152. NASA-supported r
Astronomy and Astrophysics
Astrophysics
34
Abundance, Electron Energy, Formaldehyde, Gamma Rays, Halley'S Comet, Polymers, Carbon Dioxide, Chemical Reactions, Helium Ions, Low Temperature, Methyl Compounds, Water Vapor, Comets, Halley, Composition, Picca Instrument, Giotto Mission, Polymers, Spacecraft Observations, Formaldehyde, Laboratory Studies, Formation, Irradiation, Radiation, Hypotheses, Molecular Processes, Spectra
Scientific paper
The RPA2-Positive Ion Cluster Composition Analyser on the Giotto spacecraft detected five distinct groups of mass abundance peaks with regular spacing of about 15 amu and masses up to about 105 amu. Starting with the first peak at about 45 amu, these peaks decrease in intensity with increasing mass. Within their half-width they are in good agreement with dissociation products of formaldehyde polymer, also known as polyoxymethylene (POM). POM has been produced in the laboratory at low temperatures by irradiating formaldehyde with bremsstrahlung from 5 MeV electrons and gamma rays from 60Co. It is suggested that cosmic radiation formed POM on grains that were aggregated into comet nuclei or formed POM on the surface layers of nuclei in the Oort cloud.
Boice Daniel C.
Huebner Walter F.
Sharp Christopher M.
No associations
LandOfFree
Polyoxymethylene in Comet Halley does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Polyoxymethylene in Comet Halley, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyoxymethylene in Comet Halley will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1669929