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21/10/2013, 09:00PosterDissociative recombination of molecular ions is an important process in the gas phase chemistry of the interstellar medium. This process has been successfully studied for a wide range of systems in storage ring merged-beam experiments using, e.g., the Test Storage Ring (TSR) in Heidelberg. However, for cold ion chemistry processes these experiments hit limitations. On the one hand the thermal...Go to contribution page
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21/10/2013, 09:00PosterThe study of ion chemistry in the interstellar medium (ISM) requires among others knowledge about cross sections and branching ratios for the recombination of atomic and molecular ions with low-energy electrons. In the case of singly charged atomic ions, experimental studies only exist for the lightest systems while for the heavier systems of astrophysical relevance, i.e., N+ to Ni+, all rate...Go to contribution page
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21/10/2013, 09:00PosterDissociative recombination (DR) of molecular ions is a key chemical process in the cold interstellar medium (ISM). DR affects the composition, charge state, and energy balance of such environments. Astrochemical models of the ISM require reliable total DR cross sections as well as knowledge of the chemical composition and excitation states of the neutral DR products. Theory cannot reliably...Go to contribution page
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21/10/2013, 09:00PosterWe present laboratory measurements of the wavelength-dependent dust opacity for amorphous Mg/Fe-silicate particles in the far-infrared range. Such amorphous silicates represent likely the major dust component in interstellar space. Their opacity bears a strong temperature dependence, which is not yet fully explored. We have synthesized silicates with a variable Mg/Fe ratio and have measured...Go to contribution page
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