151 citations · 277 across the 5 of their papers we have counts for
5 papers
Synthesis of complex organic molecules in soft x-ray irradiated ices
A. Ciaravella, A. Jiménez-Escobar, C. Cecchi-Pestellini +4
We study the chemical evolution of H2O:CO:NH3 ice mixtures irradiated with soft X-rays, in the range 250-1250 eV. We identify many nitrogen-bearing molecules such as e.g., OCN-, NH…
Soft X-ray Irradiation of Silicates: Implications on Dust Evolution in Protoplanetary Disks
A. Ciaravella, C. Cecchi-Pestellini, Y. -J. Chen +4
The processing of energetic photons on bare silicate grains was simulated experimentally on silicate films submitted to soft X-rays of energies up to 1.25 keV. The silicate materia…
Investigation of HNCO isomers formation in ice mantles by UV and thermal processing: an experimental approach
A. Jiménez-Escobar, B. M. Giuliano, G. M. Muñoz Caro +2
Current gas phase models do not account for the abundances of HNCO isomers detected in various environments, suggesting a formation in icy grain mantles. We attempted to study a fo…
Comparison of UV and high-energy ion irradiation of methanol:ammonia ice
G. M. Munoz Caro, E. Dartois, P. Boduch +3
The main goal of this work is to compare the effects induced in ices of astrophysical relevance by high-energy ions, simulating cosmic rays, and by vacuum ultraviolet (UV) photons.…
Sulfur depletion in dense clouds and circumstellar regions I. H2S ice abundance and UV-photochemical reactions in the H2O-matrix
A. Jiménez-Escobar, G. M. Muñoz Caro
This work aims to study the unexplained sulfur depletion observed toward dense clouds and protostars. We made simulation experiments of the UV-photoprocessing and sublimation of H2…