期刊
ASTROPHYSICAL JOURNAL
卷 701, 期 2, 页码 1347-1356出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/701/2/1347
关键词
astrochemistry; infrared: solar system; interplanetary medium; methods: laboratory; planets and satellites: general
资金
- viaNASA's Planetary Geology and Geophysics Program [05-PGG05-41]
Using new laboratory spectra, we have calculated the real and imaginary parts of the index of refraction of amorphous and crystalline H2O-ice from 20-150 K in the wavelength range 2.5-22 mu m (4000-455 cm(-1)) and joined these results with previous measurement from 1.25 to 2.5 mu m. These optical constants improve on previous measurements by having better temperature and spectral resolution and can be used to create model spectra for comparison to spectra of solar system objects and interstellar materials. In this wavelength range, the infrared band shapes and positions of amorphous H2O-ice are strongly dependent on deposition temperature. Amorphous and crystalline H2O- ice have distinctive spectral bands at all wavelengths in this region with bands weakening and shifting to shorter wavelength in amorphous H2O- ice compared to crystalline H2O-ice. Some notable exceptions are the band near 6 mu m, which is stronger in amorphous H2O-ice, and the bands near 4.5 mu m and 12.5 mu m, which shift to longer wavelength in amorphous H2O-ice.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据