Technische Universität Berlin - Faculty VI - Institute of Geodesy and Geo Information Sciences / Satellite Geodesy
Research Assistant (PostDoc) - salary grade E13 TV-L Berliner Hochschulen
part-time employment may be possible
Within a third-party funded research project the TU Berlin will develop methods for the quantification of radio source structure effects. Research work will be carried out in the field of geodetic and astrometric Very Long Baseline Interferometry (VLBI) involving concepts and methods of radio astronomical imaging and data processing.
The optical astrometric satellite mission Gaia (ESA) is going to provide positions and proper motions of radio sources at a level of precision comparable to current astrometric VLBI. It presents a unique opportunity of comparison of celestial reference frames obtained at different wavelengths. In the project, the comparison of the Gaia and VLBI celestial coordinates will be exploited for the determination of systematic reference frame effects and technique-dependent systematic errors. In terms of geodetic VLBI, the detection, modelling and correction of radio source structure effects on celestial coordinates and observables are the first priority. The evolution of intrinsic structure caused by astrophysical processes can cause very large apparent proper motions. The comparison requires an accurate mutual orientation of the VLBI and Gaia reference frames. In the focus is the alignment of the radio and optical wavelengths-based frames. The same celestial objects very likely appear at different positions depending on the observed frequency, an effect that needs to be considered for the precise radio-optical frame tie.
The vacancy is embedded within the VLBI Working Group at German Research Centre for Geosciences (GFZ) in Potsdam. The successful applicant will work together with two other project associates as well as with the other project working group members at GFZ in Potsdam.
Successfully completed university degree (Master, Diplom or equivalent) and PhD or equivalent in space geodesy or radio astronomy or equivalent with focus on VLBI
Knowledge of programming languages such as MatLab, Fortran, Python, C++
Ideally a specialization in the fields of VLBI radio source imaging and geodetic as well as astrometric VLBI
Knowledge of the usage and development of geodetic VLBI software packages, such as Calc/Solve and VieVS, as well as experience with VLBI imaging software, such as AIPS
Knowledge of the determination of phase and group delay effects from image-based source structure and the methods to correct for such effects in the geodetic analysis of VLBI data
Good teamwork and resilience
Excellent command of English (written and spoken)
Favorably knowledge in the determination and analysis of dispersive VLBI observables and filter methods
Willingness to assume project responsibility and interest in extending a work group
Basic knowledge of German
How to apply:
Please send your written application with the reference number and the usual documents (in particular curriculum vitae, school and university certificates, work references and publication list) to Technische Universität Berlin - Der Präsident - Fakultät VI, Institut für Geodäsie und Geoinformationstechnik, FG Satellitengeodäsie, Prof. Dr. Schuh, Sekr. H12, Straße des 17. Juni 135, 10623 Berlin or by e-mail to email@example.com.
To ensure equal opportunities between women and men, applications by women with the required qualifications are explicitly desired. Qualified individuals with disabilities will be favored. The TU Berlin values the diversity of its members and is committed to the goals of equal opportunities.
Please send copies only. Original documents will not be returned.