Speaker
Andreas Wolf
(MPIK, Heidelberg)
Description
Low energy collisions of electrons with atomic and molecular ions are among the most basic microscopic interactions in the interstellar medium. Electron-ion recombination limits the abundance of charged atoms molecules and, as dissociative recombination of molecular ions, produces neutral radical fragments for gas phase reaction chains. Moreover, electron impact excitation can influence rotational, vibrational or fine-structure level populations. Results and future approaches for measurements on these process with a monoergetic electron beam merged with a stored ion beam will be discussed, focusing on the development of the cryogenic electrostatic storage ring CSR in Heidelberg as the next generation facility for such laboratory studies.
Author
Andreas Wolf
(MPIK, Heidelberg)