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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:googlescopusCluster emission and chemical reactions in oxygen and nitrogen ices induced by fast heavy-ion impact
ArticleAbstract: Two ices, O2 and a mixture of O2 and N2, are bombarded by 252Cf fission fragments (FF) (∼65 MeV at tPalabras claves:Cluster ions, Condensed gases, O ice 2, O -N ice 2 2, 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, Ponciano C.R., Wien K.Fuentes:scopusCompaction 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 Produced by Fission Fragments on Condensed CO and CO<inf>2</inf>
ArticleAbstract: Condensed CO and CO2 are bombarded by ∼65 MeV 252Cf fission fragments and the desorbed ions are analPalabras claves:Autores:Da Silveira E.F., Farenzena L.S., Homem M.G.P., Martinez R., Naves De Brito A., P. Iza, Ponciano C.R., Wien K.Fuentes:scopusElectronic 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:googlescopusEffects of projectile track charging on the H<sup>-</sup> secondary ion velocity distribution
ArticleAbstract: The bombardment of insulating targets by MeV projectiles produces a positive track delivering secondPalabras claves:Energy and angle differential spectrometry, H desorption -, Ion solid interaction, Secondary ion emission, SEID, Sputtering, XY-TOFAutores:Da Silveira E.F., Farenzena L.S., P. IzaFuentes:scopusHybrid molecular ions emitted from CO-NH<inf>3</inf> ice bombarded by fission fragments
ArticleAbstract: CO-NH3 ice at 25 K is bombarded by 65 MeV fission fragments and the emitted secondary ions are analyPalabras claves:CO-NH ice 3, Condensed gase, Hybrid molecular ion, Secondary ion, Temperature dependence, TOF SIMSAutores:Da Silveira E.F., Farenzena L.S., Homem M.G.P., Martinez R., Naves De Brito A., P. Iza, Ponciano C.R., Wien K.Fuentes:scopus