Heloisa Maria Boechat-Roberty
Instituição:
Universidade Federal do Rio de Janeiro
Centro:
Centro de Ciências Matemáticas e da Natureza
Unidade:
Observatório do Valongo
Departamento:
Departamento de Astronomia/Valongo
Formação:
-
Centro Brasileiro de Pesquisas Físicas
Física | Doutorado | 1981 - 1990
-
Universidade Federal do Rio de Janeiro
Engenharia Nuclear | Mestrado | 1974 - 1977
-
Universidade Federal do Rio de Janeiro
Astronomia | Graduação | 1970 - 1973
Laboratórios:
Nuvens de Palavras:
Artigos:
(87.50% artigos com DOI)
| Titulo | DOI | Ano |
|---|---|---|
| Observations and Chemical Modeling of the Isotopologues of Formaldehyde and the Cations of Formyl and Protonated Formaldehyde in the Hot Molecular Core G331.512-0.103 | 10.3847/1538-4357/ace048 | 2023 |
| Decoding the molecular complexity of the solar-type protostar NGC 1333 IRAS 4A | 10.1093/mnras/stad3873 | 2023 |
| Multiply charged naphthalene and its C10H8 isomers: Bonding, spectroscopy and implications in AGN environments | 10.1093/mnras/stac679 | 2022 |
| Low-temperature chemistry induced by cosmic rays: positive and negative ion desorption from nitrile-bearing astrophysical ice analogues | 10.1093/mnras/stz3562 | 2020 |
| Dissociative Single and Double Photoionization of Biphenyl (C12H10) by Soft X-rays in Planetary Nebulae | 10.1093/mnras/staa3181 | 2020 |
| Gas-phase spectroscopic characterization of neutral and ionic polycyclic aromatic phosphorus heterocycles (PAPHs) | 10.1093/mnras/staa3460 | 2020 |
| Soft X-ray Chlorine Photolysis on Chlorobenzene Ice: An Experimental and Theoretical Study | 10.1021/acs.jpca.8b11530 | 2019 |
| Destruction and multiple ionization of PAHs by X-rays in circumnuclear regions of AGNs | 10.1093/mnras/stz1021 | 2019 |
| Unexpected reversal of stability in strained systems containing one-electron bonds | 10.1039/c9cp04964a | 2019 |
| A search for Cyanopolyynes in L1157-B1 | 10.1093/mnras/sty180 | 2018 |
| Hydrogenated Benzene in Circumstellar Environments: Insights into the Photostability of Super-hydrogenated PAHs | 10.3847/1538-4357/aaa977 | 2018 |
| Astrochemical evolution along star formation: overview of the IRAM Large Program ASAI | 10.1093/mnras/sty937 | 2018 |
| Zero age planetary orbit of gas giant planets revisited: reinforcement of the link with stellar metallicity | 10.1093/mnras/stw2592 | 2017 |
| Reinforcement of the link between stellar metallicity and the zero age orbit of gas giant planet | 10.1017/S1743921317007773 | 2017 |
| SINGLE AND DOUBLE PHOTOIONIZATION AND PHOTODISSOCIATION OF TOLUENE BY SOFT X-RAYS IN A CIRCUMSTELLAR ENVIRONMENT | 10.3847/0004-637X/821/1/4 | 2016 |
| Molecular formation along the atmospheric mass loss of HD 209458b and similar Hot Jupiters | 10.1016/j.pss.2015.12.010 | 2016 |
| Non-thermal Ion Desorption From an Acetonitrile (CH 3 CN) Astrophysical Ice Analogue Studied by Electron Stimulated Ion Desorption | 10.1039/c5cp05040e | 2015 |
| Positive ion desorption from frozen N-heterocycles stimulated by high-energy electron impact | 10.1088/1742-6596/635/6/062003 | 2015 |
| Photodesorption and Photostability of Acetone Ices: Relevance to Solid Phase Astrochemistry | 10.1021/jp410745c | 2014 |
| Molecules with a peptide link in protostellar shocks: a comprehensive study of L1157 | 10.1093/mnras/stu1718 | 2014 |
| Production of NH4+ and OCN- ions by the interaction of heavy-ion cosmic rays with CO-NH3 interstellar ice | 10.1093/mnras/stu1400 | 2014 |
| Fragmentation and Ion Desorption from Condensed Pyrimidine by Electron Impact: Implications for Cometary and Interstellar Heterocyclic Chemistry | 10.1021/jp504464w | 2014 |
| Electron scattering from trans 1,3-butadiene molecule: cross-sections, oscillator strength and VUV photoabsorption cross-sections | 10.1140/epjd/e2012-30473-9 | 2013 |
| X-ray photodesorption and proton destruction in protoplanetary discs: pyrimidine | 10.1093/mnras/stt994 | 2013 |
| Desorption from Methanol Ice Induced by Electrons from Solar Wind or Magnetospheres | 10.1016/j.asr.2013.06.006 | 2013 |
| Positive Molecular Ions and Ion-Neutral Complexes in the Gas Phase: Structure and Stability of C2H4O2 1+ and C2H4O2 2+ Isomers | 10.1002/qua.24181 | 2012 |
| Desorption from Methanol and Ethanol Ices by High Energy Electrons: Relevance to Astrochemical Models | 10.1021/jp308680k | 2012 |
| Photostability of gas- and solid-phase biomolecules within dense molecular clouds due to soft X-rays | 10.1111/j.1365-2966.2010.17840.x | 2011 |
| Photodissociation of methyl formate in circumstellar environment: stability under soft X-rays | 10.1111/j.1365-2966.2011.19424.x | 2011 |
| Formation Routes of Interstellar Glycine Involving Carboxylic Acids: Possible Favoritism Between Gas and Solid Phase | 10.1089/ast.2011.0650 | 2011 |
| Theoretical Investigation on the Stability of Negatively Charged Formic Acid Clusters | 10.1021/jp100425h | 2010 |
| X-ray photodesorption from methanol ice | 10.1111/j.1365-2966.2010.17395.x | 2010 |
| Dissociation of the benzene molecule by ultraviolet and soft X-rays in circumstellar environment | 10.1111/j.1365-2966.2008.14368.x | 2009 |
| Vacuum ultraviolet electron impact excitation of the styrene molecule: cross sections and oscillator strengths | 10.1088/0953-4075/42/9/095201 | 2009 |
| Frozen methanol bombarded by energetic particles: Relevance to solid state astrochemistry | 10.1016/j.susc.2009.02.035 | 2009 |
| Positive and negative ionic desorption from condensed formic acid photoexcited around the O 1s-edge: Relevance to cometary and planetary surfaces | 10.1016/j.susc.2009.09.020 | 2009 |
| Astrophysical Icy Surface Simulation under Energetic Particles and Radiation Field in Formic Acid | 10.1021/jp800297f | 2008 |
| Dissociative Photoionization of the Tetramethyl Silane Molecule, Si(CH3)4, Around the Si 1s Edge | 10.1016/j.ijms.2008.08.005 | 2008 |
| Theoretical Investigation on the Stability of Ionic Formic Acid Clusters | 10.1021/jp807792s | 2008 |
| Plasma Desorption Mass Spectrometry analysis of HCOOH ice | 10.1016/j.elspec.2006.12.003 | 2007 |
| Production of H+3 via photodissociation of organic molecules | 10.1111/j.1365-2966.2006.11415.x | 2007 |
| Photodissociation of organic molecules in star-forming regions, III. Methanol | 10.1051/0004-6361:20066275 | 2007 |
| Ionic yield and dissociation pathways from soft X-ray double-ionization of alcohols | 10.1016/j.elspec.2006.12.031 | 2007 |
| Ionic yield and dissociation pathways from soft X-ray multi-ionization of acetic acid | 10.1016/j.elspec.2006.11.023 | 2007 |
| Photodissociation of organic molecules in star-forming regions II: Acetic acid | 10.1051/0004-6361:20053927 | 2006 |
| Cross sections for elastic and inelastic electron scattering from carbon disulfide | 10.1088/0953-4075/39/16/018 | 2006 |
| Ionization and dissociation of cometary gaseous organic molecules by solar wind particles ? I. Formic acid | 10.1111/j.1365-2966.2006.10949.x | 2006 |
| Destruction of formic acid by soft X-rays in star-forming regions | 10.1051/0004-6361:20042588 | 2005 |
| Absolute differential cross sections for elastic and inelastic electron scattering from benzene with 1 kev impact energy | 10.1088/0953-4075/37/7/008 | 2004 |
| Nonlinear distribution of the sunspot magnetic field during the solar maximum | 10.1016/S0273-1177(03)00325-9 | 2003 |
| Generalized Oscillator Strength and Inelastic Cross-Sectionsfor the Xe 4d Resonances | 10.1088/0953-4075/35/6/301 | 2002 |
| Generalized oscillator strength for the 1B2u¿1Ag transition and the observation of forbidden processes at the C 1s spectrum of the naphthalene molecule | 10.1016/S0368-2048(02)00038-5 | 2002 |
| Valence electronic excitation of the SiF4 molecule: generalized oscillator strength for the 5t2 | 10.1088/0953-4075/34/6/303 | 2001 |
| Fragmentação de Moléculas pela Luz Síncrotron e por Elétrons Rápidos. I. O caso do Halotano, C2F3HClBr | 2001 | |
| Absolute Differential Cross-Sections for Elastic and Inelastic Electron Scattering from N2O with 1 KeV impact energy | 10.1088/0953-4075/33/20/324 | 2000 |
| Valence shell angle-resolved electron energy-loss spectra of SF6 | 1998 | |
| Generalized oscillator strength for the transition of anthracene, as determined by electron energy-loss spectroscopy | 10.1088/0953-4075/30/15/010 | 1997 |
| A Wien Filter Velocity Analyser for Intermediate Energy Electron Impact Spectroscopy | 1995 | |
| Experimental and Theoretical Determination of the Optical and Generalized Oscillator Strengths for the Inner-Shell Excitation of C2 H2 | 10.1103/PhysRevA.49.2399 | 1994 |
| Experimental Observation of a Minimum in the Generalized Oscillator Strength for the Ã(1A2 ) X (1A1 ) Transition of Ammonia | 1992 | |
| Angle-Resolved Electron Energy-loss Study of Core-level Electron Excitation in Molecules: Determination of the Generalized Oscillator Strength for the Carbon 1s(2sg®2pu) Excitation in CO2 | 1991 | |
| An analysis of Spectrophotometric Observations of Comets Austin (1982g) and Bradfield (1980t), | 1989 | |
| Generalized Oscillator Strength for the 3p6 - 3p5 (4s,4s') Transitions in Argon | 1988 | |
| Um Novo Analisador de Velocidades de Elétrons de Energia Intermediária (0,1 3,0 keV) | 1982 |
Eventos:
(6.94% eventos com DOI)
| Titulo | DOI | Ano |
|---|---|---|
| Formation and destruction of organic molecules in the upper atmosphere of Titan | 2020 | |
| X-ray interactions with condensed chlorobenzene: formation of PAHs on dust grains surfaces | 2019 | |
| Stability of the hydrogenated benzene in the PDR of the planetary nebula NGC 7027 | 2017 | |
| Destruction of PAHs by X-Rays in circumnuclear regions of AGNs | 2017 | |
| Methyl formate ice stimulated by X-rays in protoplanetary discs | 2015 | |
| Non-thermal desorption processes on nitrile-bearing astrophysical ice analogues studied by electron stimulated ion desorption | 2015 | |
| Positive ion desorption from frozen N-heterocycles stimulated by high-energy electron impact | 2015 | |
| Fragmentation and desorption from condensed alcohols due to soft X-rays and electron interactions: Relevance to solid state astrochemistry | 2012 | |
| Desorption induced by solar wind electrons analogs in methanol ice | 2012 | |
| Ionization and Desorption of Molecule Ice Stimulated by X-Rays in Circumstellar Envelopes | 2012 | |
| Soft X-Rays Photostability of Amino Acids and Nucleobases in Extraterrestrial Environment Analogs | 2010 | |
| Photoabsorption of hydrocarbons in Titan's atmosphere | 10.1017/S1743921310010914 | 2010 |
| A multi-coincidence study of the multiple photoionization of CH 4 and NH 3 molecules | 10.1088/1742-6596/194/2/022070 | 2009 |
| Photostability of gas- and solid-phase biomolecules under astrophysical analog soft X-rays field | 10.1017/S1743921310001225 | 2009 |
| Half-life for the benzene molecule in circumstellar environment | 2009 | |
| Production of H3+, and D3+, from (CH3)2CO, and (CD3)2CO, in PDR'S | 2008 | |
| Observation of strong correlation effects in photoionization of water | 2008 | |
| Photon stimulated ion desorption from condensed methanol near the O 1s-edge relevance to cometary and planetary surface | 2008 | |
| Interstellar molecules study: methylamine | 2008 | |
| Survival of gas phase amino acids and nucleobases in space radiation conditions | 10.1017/S1743921308021996 | 2008 |
| Photoproduction of H3+ from gaseous methanol inside dense molecular clouds | 10.1017/S1743921308021984 | 2008 |
| Ionic Fragmentation of molecules of astrophysics interest: CH3CN and CH2CHCN | 2007 | |
| Destruction of organic molecules by x-rays in star-forming regions. | 2007 | |
| Aminoácidos no campo de radiação interestelar | 2007 | |
| Moléculas em Regiões de formação estelar: Nitrilas (CN) | 2007 | |
| Moleculas em Nebulosas Planetárias | 2007 | |
| Análise estrutural e energética de clusters de ácido fórmico condensado em condições astrofísicas | 2007 | |
| A quantitative study of x-ray irradiation of methylamine in interstellar enviroments | 2007 | |
| Fragmentation and survival study of icy pre-biotic molecules in astrophysical environment | 2007 | |
| Ionic Desorption from Icy Surface in Comets | 2006 | |
| Photodissociation of organic molecules in star-forming regions: methanol | 2006 | |
| Sobrevivência de Moléculas Precursoras de Aminoácidos em Regiões de Formação Estelar | 2005 | |
| Preferential Pathway for Glycine Formation in Star-Forming Regions | 2005 | |
| Photodestruction of PAHs in Planetary Nebulae | 2005 | |
| Solar wind electrons interaction with molecules in cometary´s atmosphere | 2005 | |
| The Effects Of Solar Wind Particles In Cometary Gaseous Organic Molecules: Formic Acid | 2005 | |
| Interaction Between Solar Wind Electrons And Icy Pre-Biotic Molecules In Comets | 2005 | |
| Photoionization and photodissociation of formic acid: Astrochemical implications | 2005 | |
| Ionic photodissociation of the acetone molecule | 2005 | |
| Photodissociation of ethanol by soft X-ray in star-forming regions | 2005 | |
| Photoabsorption And Fragmentation In Planetary Nebula: II Naphthalene, Methyl anthracene | 2004 | |
| Photoabsorption And Fragmentation In Planetary Nebula: II benzene, biphenyl | 2004 | |
| Fotofragmentação de Moléculas Precursoras de Aminoácidos | 2004 | |
| Moléculas Precursoras de Aminoácidos em Regiões de Fotodissociação | 2004 | |
| Moléculas Pré-Bióticas Em Regiões De Formação Estelar e Nebulosas Planetárias | 2004 | |
| Moléculas Pré-Bióticas Em Regiões De Formação Estelar | 2004 | |
| Distribuição da Força do Oscilador e Propriedades da Molécula Butadieno | 2003 | |
| A estabilidade dos PAHs em função da energia da radiação interestelar nas faixas UV e Raios - X | 2003 | |
| EXCITAÇÃO E FOTOABSORÇÃO DE MOLÉCULAS INTERESTELARES NO ULTRA VIOLETA | 2003 | |
| Fragmentação do Benzeno e Benzeno deuterado usando a Radiação Síncrotron | 2002 | |
| PHOTOABSORPTION AND DISSOCIATIVE PHOTOIONIZATION OF THE C6H6 AND C6D6 AT UV AND X-RAYS REGIONS | 2002 | |
| GENERALIZED OSCILLATOR STRENGTH AND INELASTIC CROSS-SECTIONS FOR THE XE 4D RESONANCES | 2001 | |
| LABORATÓRIO DE ASTROFÍSICA: PARÂMETROS ESPECTROSCÓPICOS DA MOLÉCULA C2H4 (ETILENO) | 2001 | |
| "Formação de Moléculas em Grãos Interestelares" | 2000 | |
| Espectrógrafo Imageador Solar | 2000 | |
| Moléculas orgânicas: Butadieno | 1999 | |
| Excitação eletrônica e fragmentação iônica na borda 1s do carbono, oxigênio e fluor de anestésicos voláteis | 1999 | |
| Nonlinear Distribution of Sunspot Magnetic Field in the Solar Maximum | 1999 | |
| Dados Atômicos: Excitação e Ionização do Xenônio e Argônio | 1998 | |
| Valence, Inner-Valence Excitation And Generalized Oscillator Strength For The 5t2-6a1 Transition In The SiF4 Molecule | 1998 | |
| A Molécula Interestelar N2O | 1997 | |
| Fotoabsorção Molecular no Meio Interestelar | 1996 | |
| Moléculas Interestelares na região do Raio-X | 1996 | |
| Energy Loss Spectroscopy of the PAHs | 1996 | |
| Espectroscopia do Antraceno (PAH) na região do UV | 1996 | |
| Interstellar extinction curve and the polycyclic aromatic hydrocarbon | 1996 | |
| The Interestellar Extinction Curve and the Polycyclic Aromactic Hydrocarbon. | 1995 | |
| Photoabsorption Spectra (NEXAFS) of Polymers, around the S and Cl K-Edges unsing Synchrotron Radiation | 1995 | |
| Valence and Carbon 1s Excitation in Naphthalene by Angle-Resolved EELS | 1993 | |
| Força do Oscilador Generalizado em Átomos e Moléculas Através do Impacto de Elétrons, | 1986 | |
| Estudo de Excitações Discretas no Átomo de Argônio por Impacto de Elétrons | 1985 | |
| Estudo de Processos Autoionizantes no Átomo de Argônio por Impacto de Elétrons | 1985 |