Journal
ICARUS
Volume 228, Issue -, Pages 276-287Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.icarus.2013.08.029
Keywords
Ices, IR spectroscopy; Trans-neptunian objects; Organic chemistry; Infrared observations
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Funding
- NASA
- NASA Astrobiology Institute through the Goddard Center for Astrobiology
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Here we report recent measurements on acetylene (C2H2) ices at temperatures applicable to the outer Solar System and the interstellar medium. New near- and mid-infrared data, including optical constants (n, k), absorption coefficients (alpha), and absolute band strengths (A), are presented for both amorphous and crystalline phases of C2H2 that exist below 70 K. Comparisons are made to earlier work. Electronic versions of the data are made available, as is a computer routine to use our reported n and k values to simulate the observed IR spectra. Suggestions are given for the use of the data and a comparison to a spectrum of Makemake is made. Published by Elsevier
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