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Chemical reactions in H<inf>2</inf>O:CO interstellar ice analogues promoted by energetic heavy-ion irradiation
ArticleAbstract: H2O:CO, at concentrations of (3:2) and (10:1), was condensed on CsI substrate at 15 K and irradiatedPalabras claves:AstrochemistryAutores:Boduch P., Christian F. Mejía, Da Silveira E.F., de Barros A.L.F., Domaracka A., Rothard H., Seperuelo Duarte E.Fuentes:googlescopusCompaction of porous ices rich in water by swift heavy ions
ArticleAbstract: Porous water ice and water ice mixtures H2O:X (X=CO, CO2 and CH4) produced at 15K, with film thicknePalabras claves:cosmic rays, IR spectroscopy collisional physics, Solar wind icesAutores:Boduch P., Christian F. Mejía, Da Silveira E.F., Dartois E., de Barros A.L.F., Domaracka A., Rothard H., Seperuelo Duarte E.Fuentes:googlescopusAstrophysical icy surface simulation under energetic particles and radiation field in formic acid
ArticleAbstract: In this work, the fragmentation, survival, and chemical reactions of formic acid (HCOOH) molecules cPalabras claves:Autores:Andrade D., Boechat-Roberty H., Da Silveira E.F., Farenzena L.S., Homem M.G.P., Martinez R., P. Iza, Peter Iza, Pilling S., Rocco M.L.M.Fuentes:googlescopusA Simple Model for Ice Compaction Data Induced by Low Energy Ion Irradiation
ArticleAbstract: A connection between the compaction of amorphous solid water (ASW) during energetic ion irradiationPalabras claves:cosmic rays, Modeling data, Molecules ionizationAutores:Almeida L.F., Christian F. Mejía, Da Silveira E.F., de Barros A.L.F., Morgado W.A.M.Fuentes:googlescopusCosmic ray-ice interaction studied by radiolysis of 15 K methane ice with MeV O, Fe and Zn ions
ArticleAbstract: Methane (CH4)ice is found in the interstellar medium and in several bodies of the Solar system, wherPalabras claves:Astrochemistry, Methods: Laboratory, Techniques: Spectroscopic circumstellar matterAutores:Boduch P., Bordaio V., Christian F. Mejía, Da Silveira E.F., de Barros A.L.F., Domaracka A., Rothard H.Fuentes:googlescopusElectronic sputtering analysis of astrophysical ices
Conference ObjectAbstract: Experimental results on fast ion collision with icy surfaces having astrophysical interest are presePalabras claves:Cometary ice, Condensed gas (H O, CO , CO, NH , N , O , Ar) 2 2 3 2 2, Ion cluster, Temperature dependence, TOF SIMSAutores:Da Silveira E.F., Duarte E.S., Faraudo G.S., Farenzena L.S., Fernandez-Lima F.A., Homem M.G.P., Martinez R., Naves De Brito A., P. Iza, Peter Iza, Ponciano C.R., Wien K.Fuentes:googlescopusIrradiation of Phenylalanine at 300 K by MeV Ions
ArticleAbstract: Phenylalanine (Phe) is an amino acid that has been identified in carbonaceous meteorites; its formatPalabras claves:Astrochemistry, cosmic rays, Infrared spectroscopy, Nucleobases, Phenylalanine, Radiolytic destruction kineticsAutores:Christian F. Mejía, Da Costa C.A.P., Da Silveira E.F., P. Iza, Peter IzaFuentes:googlescopusTrack electrostatic model for describing secondary ion emission of insulators
Conference ObjectAbstract: A model based on the nuclear track potential is described and used to pbkp_redict trajectories and tPalabras claves:Autores:Da Silveira E.F., Farenzena L.S., P. Iza, Peter Iza, Ponciano C.R., Sigaud R.Fuentes:googlescopusSecondary ion emission dynamics model: A tool for nuclear track analysis
Conference ObjectAbstract: The initial velocity distribution of secondary ions is employed as a tool to analyze nuclear track fPalabras claves:Angular distribution, Initial velocity distribution, Nuclear track potential model, Secondary ion emissionAutores:Da Silveira E.F., Farenzena L.S., Groeneveld K., Jalowy T., P. Iza, Peter IzaFuentes:googlescopusSecondary ion emission from condensed CO bombarded by fission fragments
ArticleAbstract: Frozen CO was bombarded by ∼65 MeV fission fragments and the emitted secondary ions were analyzed byPalabras claves:CO ice, Condensed gas, Ion cluster, Secondary ions, Temperature dependence, TOF SIMSAutores:Da Silveira E.F., Farenzena L.S., Homem M.G.P., Martinez R., Naves De Brito A., P. Iza, Peter Iza, Ponciano C.R., Wien K.Fuentes:googlescopus