61 citations · 297 across the 13 of their papers we have counts for
13 papers
Polycyclic aromatic hydrocarbons and the ionized gas
A. Silva-Ribeiro, A. C. Krabbe, C. M. Canelo +4
We present a study for a sample of galaxies with active nuclei to characterize the main type of PAH molecules present in these objects and the local physical conditions of their ir…
Chemical reactions in the nitrogen-acetone ice induced by cosmic ray analogs: relevance for the Solar System
A. L. F. de Barros, D. P. P. Andrade, E. F. da Silveira +3
The radiolysis of a nitrogen-acetone mixture, condensed at 11 K, by 40 MeV Ni ions is studied. These results are representative of studies concerning solar system ob…
Infrared complex refractive index of astrophysical ices exposed to cosmic rays simulated in the laboratory
W. R. M. Rocha, S. Pilling, A. L. F. de Barros +3
In dense and cold regions of the interstellar medium (ISM), molecules may be adsorbed onto dust grains to form the ice mantles. Once formed, they can be processed by ionizing radia…
Processing of formic acid-containing ice by heavy and energetic cosmic ray analogues
A. Bergantini, S. Pilling, H. Rothard +2
Formic acid (HCOOH) has been extensively detected in space environments, including interstellar medium (gas and grains), comets and meteorites. Such environments are often subjecte…
Radiolysis of Amino Acids by Heavy and Energetic Cosmic Ray Analogs in Simulated Space Environments: -Glycine Zwitterion Form
Williamary Portugal, Sergio Pilling, Philippe Boduch +2
In this work, we studied the stability of the glycine molecule in the crystalline zwitterion form, known as α-glycine (NHCHCOO) under action of heavy cosmic…
X-ray photodesorption and proton destruction in protoplanetary disks: pyrimidine
E. Mendoza, G. C. Almeida, D. P. P Andrade +4
The organic compounds HCN and C2H2, present in protoplanetary disks, may react to form precursor molecules of the nucleobases, such as the pyrimidine molecule, C4H4N2. Depending on…