Hannover 2020 – wissenschaftliches Programm
Die DPG-Frühjahrstagung in Hannover musste abgesagt werden! Lesen Sie mehr ...
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MO: Fachverband Molekülphysik
MO 21: Astrophysics and Ions
MO 21.3: Vortrag
Freitag, 13. März 2020, 14:45–15:00, f142
Electron Recombination Studies of TiO+ molecules — •Naman Jain1, Klaus Blaum1, Sebastian George1,2, Jürgen Göck1, Manfred Grieser1, Florian Grussie1, Robert von Hahn1, Ábel Kálosi1, Holger Kreckel1, Damian Müll1, Oldřich Novotný1, Felix Nuesslein1, Daniel Paul1, Sunny Saurabh1, Viviane C. Schmidt1, Albert A. Viggiano3, Patrick Wilhelm1, and Andreas Wolf1 — 1Max Planck Institute for Nuclear Physics, Heidelberg, Germany — 2University of Greifswald, Greifswald, Germany — 3AFR Laboratory, New Mexico, USA
The complex chemical processes observed in the gas-phase of interstellar medium (ISM) are majorly based on ion reactions. Dissociative recombination (DR) of molecular ions is a dominant process in such environments that neutralizes the plasma and leads to the fragmentation of molecules. In the ISM, the titanium oxide (TiO+) cation can be formed by the associative ionization process between atomic titanium and oxygen. The process has been proposed to be responsible for the production of free electrons and severe atomic depletion of Ti in gas phase ISM. The inverse process, DR, is expected to be endothermic, contrary to most other cases. Precise laboratory studies on the DR of TiO+ are needed for a concrete proof of the reaction energetics, thus elucidating the molecular reaction dynamics. Such experiments are being conducted at the electrostatic Cryogenic Storage Ring (CSR) in similar conditions as in the cold ISM. Here, we report on our initial results of a TiO+ DR experiment with the electron cooler at CSR.