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dc.contributor.authorHunten, D. M.
dc.contributor.authorSprague, A. L.
dc.date.accessioned2021-02-12T20:55:43Z
dc.date.available2021-02-12T20:55:43Z
dc.date.issued2002-01-01
dc.identifier.citationHunten, D. M., & Sprague, A. L. (2002). Diurnal variation of sodium and potassium at Mercury. Meteoritics & Planetary Science, 37(9), 1191-1195.
dc.identifier.issn1945-5100
dc.identifier.doi10.1111/j.1945-5100.2002.tb00888.x
dc.identifier.urihttp://hdl.handle.net/10150/655560
dc.description.abstractA summary is given of our published observations showing a large (3 to 4) morning/afternoon ratio of the abundances of sodium and potassium. The proposed mechanism is deposition of ions and atoms on the cold night side, followed by their outward diffusion and evaporation as the Sun rises. Published criticisms of this mechanism are discussed and answered. The rate at which Na atoms can evaporate from the surfaces of the Moon and Mercury is uncertain, but, after a review of laboratory measurements, we propose that it is substantial at temperatures of 400 K and higher. Possible reasons are discussed why another group does not find the diurnal variation. There are differences in observing geometry, but the matter remains unclear.
dc.language.isoen
dc.publisherThe Meteoritical Society
dc.relation.urlhttps://meteoritical.org/
dc.rightsCopyright © The Meteoritical Society
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectNa
dc.subjectK
dc.subjectdiurnal variation
dc.subjectsodium
dc.subjectpotassium
dc.subjectMercury
dc.titleDiurnal variation of sodium and potassium at Mercury
dc.typeArticle
dc.typetext
dc.identifier.journalMeteoritics & Planetary Science
dc.description.collectioninformationThe Meteoritics & Planetary Science archives are made available by the Meteoritical Society and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume37
dc.source.issue9
dc.source.beginpage1191
dc.source.endpage1195
refterms.dateFOA2021-02-12T20:55:43Z


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