Results 1 to 10 of about 260,636 (325)
Vacuum-UV spectroscopy of interstellar ice analogs. II. Absorption cross-sections of nonpolar ice molecules [PDF]
Astronomy & Astrophysics, 2014 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 gas-phase molecules in these environments, such as the photodesorption ...
Caro, G. M. Muñoz +3 more
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Monitoring the temperature-dependent elastic and anelastic properties in isotropic polycrystalline ice using resonant ultrasound spectroscopy [PDF]
The Cryosphere, 2016 The elastic and anelastic properties of ice are of interest in the study of the dynamics of sea ice, glaciers, and ice sheets. Resonant ultrasound spectroscopy allows quantitative estimates of these properties and aids calibration of active and passive ...
M. J. Vaughan +3 more
doaj +3 more sources
Observation of sublimation of ice using terahertz spectroscopy [PDF]
Royal Society Open Science, 2020 Although many studies have investigated the phase change of water, few have focused on the sublimation of ice. This study revealed that ice sublimation can be observed using terahertz (THz) spectroscopy.
Keisuke Matsumura +2 more
doaj +3 more sources
Two-dimensional infrared spectroscopy of neat ice Ih [PDF]
Physical Chemistry Chemical Physics, 2011 The OH stretch line shape of ice Ih exhibits distinct peaks, the assignment of which remains controversial. We address this longstanding question using two dimensional infrared (2D IR) spectroscopy of the OH stretch of H(2)O and the OD stretch of D(2)O of ice Ih at T = 80 K.
Fivos Perakis, Peter Hamm
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Neutron spectroscopy of high-density amorphous ice [PDF]
Physica B: Condensed Matter, 1999 Abstract Vibrational spectra of high-density amorphous ice (hda-ice) for H 2 O and D 2 O samples were measured by inelastic neutron scattering. The measured spectra of hda-ice are closer to those for high-pressure phase ice-VI, but not for low-density ice-Ih.
А. И. Колесников +6 more
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THz time-domain spectroscopy of mixed CO2–CH3OH interstellar ice analogs [PDF]
, 2016 The icy mantles of interstellar dust grains are the birthplaces of the primordial prebiotic molecular inventory that may eventually seed nascent solar systems and the planets and planetesimals that form therein.
Allodi, Marco A. +3 more
core +5 more sources
Astronomy & Astrophysics, 2019 Context.Reliable, directly measured optical properties of astrophysical ice analogues in the infrared and terahertz (THz) range are missing from the literature. These parameters are of great importance to model the dust continuum radiative transfer in dense and cold regions, where thick ice mantles are present, and are necessary for the interpretation ...
B. M. Giuliano +11 more
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Rapid conversion of amino acid modified-ice to methane hydrate for sustainable energy storage [PDF]
Nature CommunicationsAdvancing safe and efficient natural gas storage solutions is essential for ensuring a stable gas supply and strengthening global energy resilience.
Ye Zhang +6 more
doaj +2 more sources
CH3NCO ices: infrared spectroscopy and energetic processing
, 2017 WG1 and WG2 workshops of COST Action CM1401 Our Asto-Chemical History, Universidad Castilla La Mancha at Ciudad Real (Spain), December 11th -13th (2017)
Belén Maté +8 more
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Infrared spectroscopy of interstellar apolar ice analogs
Astronomy & Astrophysics, 1997 Apolar ices have been observed in several regions in dense clouds and are likely dominated by molecules such as CO, CO(2) and the infrared inactive molecules O(2) and N(2). Interstellar solid CO has been well characterized by ground-based high resolution measurements.
P. Ehrenfreund +4 more
openalex +3 more sources