J/A+A/517/A60ivo://CDS.VizieR/J/A+A/517/A60doi:10.26093/cds/vizier.35170060CDSKannuchova Z.Baratta G.A.Garozzo M.Strazzulla G.2017-07-05T06:59:59Z2010-08-09T16:47:55ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsasteroidsThe surfaces of airless bodies in the Solar System are continuously altered by the bombardment of micrometeoroids and irradiation by solar wind, flares, and cosmic particles. Major effects of this process - space weathering - are darkening and "reddening" of the spectra of surface materials, as well as a "degrading" of absorption features. We studied the changes induced by energetic ion irradiation in the ultraviolet-visual-near-infrared (UV-Vis-NIR) (0.2-0.98um) reflectance spectra of targets selected to mimic the surfaces of airless bodies in the inner Solar System. Our chosen targets are olivine pellets, pure or covered by an organic polymer (polystyrene), which is transparent before irradiation. Polystyrene is used as a template for organic matter of low volatility that can be present on asteroidal surfaces. Moreover we measured the changes induced by ion irradiation in the absorption coefficient of the polymer. The purpose was to have a tool to better compare laboratory with observed spectra and distinguish between planetary objects with pure silicate surfaces and those whose surface is covered by organic matter exposed to cosmic ion bombardment.2010A&A...517A..60Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/517/A60CatalogResearchIsServedByTAP VizieR generic servicerelated-tohttp://web.ct.astro.it/weblab/dbindex.html :https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/517/A60https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/517/A60http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/517/A60https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/517/A60https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/517/A60http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/517/A60GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/517/A60/absar*Absorption coefficient of polystyrene in the wavelength range 250-980nm after irradiation with 400keV Ar++recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[250,980]? Wavelengthnmem.wlfloatnullableAbs.coef1?=- Absorption coefficient for fluence=6.3x10^12^ions/cm^2^, dose=1.5eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef2?=- Absorption coefficient for fluence=3.8x10^13^ions/cm^2^, dose=9.1eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef3?=- Absorption coefficient for fluence=7.5x10^13^ions/cm^2^, dose=18.3eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef4?=- Absorption coefficient for fluence=1.5x10^14^ions/cm^2^, dose=36.5eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef5?=- Absorption coefficient for fluence=6.0x10^14^ions/cm^2^, dose=146eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef6?=- Absorption coefficient for fluence=5.2x10^15^ions/cm^2^, dose=1274.8eV/16ucm**-1phys.absorption.coeffdoublenullableJ/A+A/517/A60/absh*Absorption coefficient of polystyrene in the wavelength range 250-980nm after irradiation with 200keV H+recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[250,980]Wavelengthnmem.wlfloatAbs.coef1?=- Absorption coefficient for fluence=2.5x10^14^ions/cm^2^, dose=6.6eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef2?=- Absorption coefficient for fluence=2.0x10^15^ions/cm^2^, dose=52.7eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef3?=- Absorption coefficient for fluence=4.0x10^15^ions/cm^2^, dose=105.5eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef4?=- Absorption coefficient for fluence=8.0x10^15^ions/cm^2^, dose=211.0eV/16ucm**-1phys.absorption.coeffdoublenullableAbs.coef5?=- Absorption coefficient for fluence=1.6x10^16^ions/cm^2^, dose=422.0eV/16ucm**-1phys.absorption.coeffdoublenullable