Results 251 to 260 of about 95,067 (301)

Infrared spectroscopy of interstellar H2O ice analogues

, 1997
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Spectroscopy and Processing of Interstellar Ice Analogs

AIP Conference Proceedings, 2006
Recent results from the Raymond and Beverly Sackler Laboratory for Astrophysics on spectroscopy and processing of interstellar ice analogues are summarized. This includes thermal desorption studies of pure, layered and mixed CO, N2 and O2 ices, and infrared spectroscopy and heating of CO‐CO2, CO‐H2O, CO‐HCOOH, CO‐CH4 and CO‐CH3OH layered and mixed ices.
E. F. van Dishoeck, K. Acharyya, A. Al-Halabi, S. Andersson, S. E. Bisschop, F. A. van Broekhuizen, H. J. Fraser, G. Fuchs, G. J. Kroes, K. I. Öberg, S. Schlemmer, H. Linnartz   +11 more
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Elastic constants of ice III by Brillouin spectroscopy

The Journal of Chemical Physics, 1994
Brillouin spectroscopy has been used to determine the adiabatic elastic constants of ice III at −20 °C and 2.2 kbar. A new technique was used to grow large single crystals. The bulk adiabatic moduli were found to be C11=153.7, C12=99.5, C13=65.1, C33=115.5, C44=44.6, C66=56.8 kbar.
Tulk, C. A., Gagnon, R. E., Kiefte, H., Clouter, M. J.   +3 more
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X-ray absorption spectroscopy and X-ray Raman scattering of water and ice; an experimental view

Journal of Electron Spectroscopy and Related Phenomena, 2010
Here we present a review of X-ray absorption spectroscopy and X-ray Raman scattering with the perspective to understand the spectra of water including changes with temperature, mass of the water molecule and presence of monovalent ions.
Anders Nilsson, Dennis Nordlund, Iradwikanari Waluyo   +2 more
exaly   +3 more sources

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VUV spectroscopy of formamide ices

Chemical Physics Letters, 2012
Vacuum UltraViolet (VUV) spectra of formamide ice have been studied using synchrotron radiation. VUV spectra of formamide ice recorded at 30 K revealed two photoabsorption bands, historically labelled V1 and Q in gas phase VUV spectra. However, in contrast to such gas phase spectra the Q band was found to be more intense than the V1 band in the ice ...
Rajasekhar, B N, Sivaraman, Bhalamurugan, Jones, Nykola C.; id_orcid 0000-0002-4081-6405, Hoffmann, Søren Vrønning; id_orcid 0000-0002-8018-5433, Mason, Nigel J.   +4 more
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THz spectroscopy of ice

LEOS 2001. 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (Cat. No.01CH37242), 2002
We have shown that the THz-time-domain spectroscopy technique can be used to measure accurately the refractive indices of crystalline ice in the THz range. Our 0.25-1.0 THz results bridge the gap between the microwave and the far IR regions. They agree very well with the curve extrapolated from the microwave data of T. Matsuoka et al.
null Chun Zhang, null Kwang-Su Lee, X.-C. Zhang, null Xing Wei, Y.R. Shen   +4 more
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Vibrational spectroscopy of ion-irradiated ices

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2001
In the last 20 years we have studied some effects induced by fast ions (E approximately keV-MeV) impinging on solid materials (mainly ices) with a view to their astrophysical relevance. The main techniques used have been infrared and Raman spectroscopy.
G, Strazzulla, G A, Baratta, M E, Palumbo   +2 more
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Glacier Ice Surface Properties in South‐West Greenland Ice Sheet: First Estimates From PRISMA Imaging Spectroscopy Data [PDF]

Journal of Geophysical Research G: Biogeosciences, 2022
[EN] Snow and ice melt processes on the Greenland Ice Sheet are a key in Earth's energy balance and are acutely sensitive to climate change. Melting dynamics are directly related to a decrease in surface albedo, amongst others caused by the accumulation ...
Niklas Bohn, Biagio Di Mauro, Roberto Colombo   +2 more
exaly   +2 more sources