Externally funded project

"Terahertz Spectorscopy of Titanium Dioxide (TiO2) and its Relevance to Astrophysics" (Terahertz Spektroskopie von Titandioxid (TiO2))


Abstract

Small metal-bearing molecular species are a very challenging and important matter of research. They are abundant in shells of late type stars and play a key role in the formation process of interstellar dust grains. Because of their chemical reactivity and high sublimation temperatures two and three atoms counting species quickly grow to larger molecules and complexes: the seeds of interstellar grains. The interstellar detection of small metal-bearing molecules relies on accurate spectroscopic data from the laboratory, sited at millimeter- and sub-millimter wavelengths. Only recently titanium dioxide (TiO2) has been detected towards the late-type star VY Canis majoris in the millimeter-wave regime using state-of-the-art interferometricals detection techniques (SubMillimeter Array and Palteau de Bure Interferometer). It is very likely that in the times of the Atacama Large Millimeter Arrray, ALMA, offering unprecedented sensitivity and now becoming available more and more routinely, many more new molecules will be detected and their spatial distribution will be studied. It is aim of the proposal to bring together experts from astrophysics (Prof. Suresh) and laboratory spectroscopy (Prof. Giesen), to discuss and evaluate aspects of metal-bearing molecules in laboratory and space.



Principal Investigator

Last updated on 2017-10-08 at 13:20