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scopus(12)
Electronic 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., Peter Darwin Iza Toapanta, Peter Iza, Ponciano C.R., Wien K.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: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:googlescopusChemical 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., Peter Darwin Iza Toapanta, Peter Iza, Pilling S., Rocco M.L.M.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., Peter Darwin Iza Toapanta, Peter IzaFuentes: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., Peter Darwin Iza Toapanta, 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., Peter Darwin Iza Toapanta, Peter Iza, Ponciano C.R., Wien K.Fuentes:googlescopusSwift heavy ion modifications of astrophysical water ice
ArticleAbstract: In the relatively shielded environments provided by interstellar dense clouds in our Galaxy, infrarePalabras claves:Astrochemistry, cosmic rays, Interstellar dust, Interstellar medium abundances, Molecular processesAutores:Augé B., Boduch P., Brunetto R., Chabot M., Christian F. Mejía, Da Silveira E.F., Dartois E., de Barros A.L.F., Ding J.J., Domaracka A., Godard M., Kamalou O., Lv X.Y., Pino T., Rothard H., Thomas J.C.Fuentes:googlescopus