Speaker
Dr
Harald Mutschke
(Astronomical Institute and University-Observatory Jena)
Description
We provide new temperature-dependent optical constants of silicate glasses, silicate minerals, and crystalline and amorphous water ice, in the sub-millimeter spectral range, for silicate glasses up to a wavelength of 4 mm. We compare these optical constants to literature data, such as the ``astronomical silicate'' and commonly used extrapolations of the water-ice opacity. We discuss physical reasons of the strong temperature dependence of the absorptivity seen in the data, and consequences for the contribution of these materials to the sub-millimeter emission of cosmic dust.
| Consider for a poster? | Yes |
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Primary authors
Dr
Harald Mutschke
(Astronomical Institute and University-Observatory Jena)
Pierre Mohr
Denny Häßner
Co-authors
Dr
Frank Lewen
(1. Phys. Institut, Universität Köln)
Prof.
Jürgen Blum
(IGEP, TU Braunschweig)
Alexey Potapov
(Max Planck Institute for Astronomy)
Dr
Bastian Gundlach
(IGEP, TU Braunschweig)
Tim Dressler
(1. Phys. Institut, Univ. Köln)
