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Vacuum-UV absorption spectroscopy of interstellar ice analogues. III. Isotopic effects
G. A. Cruz-Diaz, G. M. Muñoz Caro, Y. -J. Chen
This paper reports the first measurements of solid-phase vacuum-ultraviolet (VUV) absorption cross-sections of heavy isotopologues present in icy dust grain mantles of dense inters…
Vacuum-UV spectroscopy of interstellar ice analogs. II. Absorption cross-sections of nonpolar ice molecules
G. A. Cruz-Diaz, G. M. Muñoz Caro, Y. -J. Chen +1
Dust grains in cold circumstellar regions and dark-cloud interiors at 10-20 K are covered by ice mantles. A nonthermal desorption mechanism is invoked to explain the presence of ga…
Vacuum-UV spectroscopy of interstellar ice analogs. I. Absorption cross-sections of polar-ice molecules
G. A. Cruz-Diaz, G. M. Munoz Caro, Y. -J. Chen +1
The VUV absorption cross sections of most molecular solids present in interstellar ice mantles with the exception of H2O, NH3, and CO2 have not been reported yet. Models of ice pho…