PhD student in studies of Isomeric Interstellar and Atmospheric Ions and their Reactions Stockholm University Astrobiology Centre Sweden

Ph. D. position in astrochemistry and atmospheric chemistry at Stockholm University


A 4-years position of a Ph. D. student in the field of astrochemistry and molecular astrophysics is available at Stockholm University under the supervision of Prof. Wolf D. Geppert. The work will focus on the investigations of ion reactions in the interstellar medium and planetary ionospheres trough experimental and theoretical methods. The focus will be on:  


  • Identification of products of ion-ion reactions relevant for the interstellar medium and planetary ionospheres using the novel and unique DESIREE double storage ring in Stockholm
  • Studies of atmospheric and interstellar ion-neutral reactions of ions using guided beams. In a collaboration composed of the Universities of Trento, J. Heyrovský Institute (Prague), Université Paris Saclay, and and SU we will pursue the selective generation of specific isomers of ions and investigations of their reactions with common molecules in Titan’s atmosphere.
  • Spectroscopic studies of isomeric ions With the help the ion trap experiment at the FELIX free electron laser at the University of Nijmegen infrared spectra of isomeric cations will be measured in order to establish selective production procedures of their isomers.
  • Furthermore, we envisage planning of rocket- and balloon-based missions to assess the abundance, identity and distribution of cluster ions in Earth’s atmosphere and their possible role in aerosol formation. The experimental and modelling studies to be carried out regarding ion clusters will identify the build-up and destruction processes of ionospheric clusters, predict their abundances and thus be of fundamental help in preparing a scientific case for such missions.
  • The results of these investigations will be used as input data of model calculations of dark interstellar clouds and planetary or satellite atmospheres and for astronomic observations.The successful candidate will be offered full-time employment with a competitive salary and full medical and social security coverage. Also, the Stockholm University Astrobiology Centre has some funds for travel.

Please check the following website for information about application procedures and rules:

The position is advertised under the heading “PhD student in studies of Isomeric Interstellar and Atmospheric Ions and their Reactions”

Any enquiries about the position and the work should be sent to

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