Astrochemistry, astrobiology and the origin of life

Gas-phase reactions involving complex organic molecules and ions with ionization radiation are among the fundamental processes that drive molecular evolution in space. We investigate how soft X-rays and fast ions but also atomic hydrogen radicals interact with polycyclic aromatic hydrocarbons, amino acids, and biomolecular building blocks under conditions relevant to the interstellar medium. By combining ion trapping, mass spectrometry, and advanced spectroscopic techniques, including experiments at synchrotron and free-electron laser facilities, we provide molecular-level insight into reaction pathways, fragmentation mechanisms, and hydrogenation processes that are central to astrochemical models. These studies contribute directly to understanding how molecular complexity can emerge in space and how radiation-driven chemistry shapes the inventory of organic molecules available for planet and life formation.