PhD ceremony: Ms. N. Wehres, 16.15 uur, Academiegebouw, Broerstraat 5, Groningen
Title: Optical spectroscopy of interstellar and circumstellar molecules. A combined laboratory and observational study.
Promotor(s): prof. A.G.G.M. Tielens, prof. H.V.J. Linnartz
Faculty: Mathematics and Natural Sciences
This thesis describes the identification of inter- and circumstellar molecules by combining laboratory and observational data. The focus is on transient, i.e. radical species.
State-of-the-art spectroscopic techniques, such as time-gated fluorescence and cavity ring-down spectroscopy, are used to search for spectral signatures of carbon chain radicals, like C9H3 and HC7H, in a supersonically expanding plasma. These species have been proposed as potential carriers of diffuse interstellar bands. In addition, the fluorescence spectra are compared with emission spectra of the Red Rectangle proto-planetary nebula that have been recorded for different spatial off-sets with the ESO New Technology Telescope. The assignment of astronomical data, using the laboratory results, provides snapshots of the ongoing chemical evolution in space.
The majority of the data have been recorded in the Sackler Laboratory for Astrophysics (Leiden Observatory) and the Laser Center VU.
NWA Idea Generator project for Kottapalli to develop low-cost sensorized shoes for patients to monitor gait and avoid fall conditions through a biofeedback voice alert.
Ymkje Stienstra (UMCG), Joram Tarusaria and Ajay Kottapalli receive an NWA Idea Generator Grant .
Lung doctor Sander de Hosson has been elected Alumnus of the Year 2019 by the University of Groningen. He is receiving the award for the incisive way in which he calls for attention for the emotional side of palliative care and for making death a...