Speaker
Dr
Melanie Schnell
(Universität Hamburg)
Description
The observed variations in molecular abundances in interstellar space originate from both physical and chemical reasons. We will use a combination of chirped-pulse Fourier transform rotational spectroscopy in different frequency ranges with telescope observations to analyse the molecular composition of the universe. By exploring the interstellar molecular complexity and by discovering new molecule classes and key chemical processes in space, the present understanding of interstellar chemistry can be significantly advanced.
Array telescopes provide new observations of rotational molecular emission, leading to an urgent need for microwave and millimeter wave spectroscopic data of exotic molecules. We will use broadband rotational spectroscopy with the cold conditions of a molecular jet and the higher temperatures of a waveguide to mimic different interstellar temperature conditions. Its key advantages are accurate transition intensities, tremendously reduced measurement times, and unique mixture compatibility, as will be discussed in this talk. Furthermore, I will introduce a new chirped-pulse Fourier transform millimeter-wave spectrometer in the 75-110 GHz frequency range that we are currently constructing.
Author
Dr
Melanie Schnell
(Universität Hamburg)