In the Laboratory for Astrophysics at Leiden Observatory, the Netherlands, a 4 yrs PhD project is available in the field of solid state astrochemistry under supervision of Prof. Harold Linnartz. The research focuses on the formation of complex organic molecules (COMs) in inter- and circumstellar ice analogues and aims at a detailed characterization of the involved chemical networks. The ultimate goal is to explain the chemical complexity observed in star and planet forming regions as well as in our own Solar System. For this laboratory data are directly compared with astronomical observations (ALMA, JWST) and used as input for astrochemical models. 

The Project uses MATRI2CES, an ultra-high vacuum setup capable of studying newly formed ice species by laser desorption post-ionization time of flight mass spectrometry. This ultra-sensitive setup simulates the radiation fields typical for translucent clouds and proto-planetary disks. The goal of this project is to accurately characterize the formation of large COMs upon vacuum UV irradiation of precursor ices representative for ices in space and on planetary bodies.

We are searching for enthusiastic students with a master (or equivalent) degree in experimental physics, physical chemistry or instrumentation and with a strong interest in astronomy, preferably with experience with UHV and cryogenic techniques, mass spectrometry and/or IR spectroscopy. Very good English skills, spoken and written, are a prerequisite. The research project is performed in close collaboration with the INTERCAT team and this also involves secondments in Aarhus. It is common that PhD students in the laboratory are also involved in astronomical observing projects. The selected candidate will actively participate in the scientific and social life of the Observatory. Our PhD students contribute to the astronomy curriculum as a teaching assistant. We offer participation in (inter)national meetings, coaching through an extensive personal development skills program, a competitive salary and excellent secondary working conditions. 

Applicants are requested to send a mail to linnartz@strw.leidenuniv.nl cc'ing intercat@phys.au.dk on all correspondence and to include a motivation letter, a scientific CV with a short overview of experimental skills, a list with grades of all bachelor/master courses, as well as the names of two persons we can contact to ask for a supporting letter of recommendation.  

Leiden Observatory is part of the Faculty of Natural Sciences at Leiden University, the Netherlands. It is one of world’s largest academic observatories. A scientific team of 30 staff members, about 60 postdocs and more than 80 PhD students covers all relevant topics in astronomy. Together with a large supporting staff, we teach 250 bachelor and 130 master students in astronomy. The Laboratory for Astrophysics is part of the astrochemistry cluster at Leiden Observatory, that also involves the research groups of Prof. Ewine van Dishoeck, Prof. Serena Viti, Prof. Xander Tielens and Prof. Michael Hogerheijde.

For any questions, please contact Prof. Harold Linnartz (linnartz@strw.leidenuniv.nl)