Publication
Reference
Moore Marla H., Hudson Reggie L. (1992). Far-Infrared Spectral Studies of Phase Changes in Water Ice Induced by Proton Irradiation. Astrophys. J., 401, 353 - 360.
Names
  • Marla H. Moore
  • Reggie L. Hudson
Article and keywords
Title
Far-Infrared Spectral Studies of Phase Changes in Water Ice Induced by Proton Irradiation
Abstract
Changes in the FIR spectrum of crystalline and amorphous water ice as a function of temperature are reported. The dramatic differences between the spectra of these ices in the FIR are used to examine the effect of proton irradiation on the stability of the crystalline and amorphous ice phases from 13 to 77 K. In particular, the spectra near 13 K show interconversion between the amorphous and crystalline ice phases beginning at doses near 2 eV/molecule and continuing cyclically with increased dose. The results are used to estimate the stability of irradiated ices in astronomical environments.
Keywords
spectroscopy, transmission, absorbance spectra, band position, far-IR, molecular solid, ice Ia, ice Ih, H2O, phase transition, thermal process, temperature, irradiation process - cosmic rays, comets, interstellar grains
Content
spectral data, band list data, experimental physics, astrophysics
Year
1992
Journal
The Astrophysical Journal
Volume
401
Pages
353 - 360
Pages number
8
Document type
article
Publication state
published
Doi
10.1086/172065
Identifiers