Two PhD Fellowship Positions in Extragalactic Astronomy

Thursday 10 Dec 20

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The Cosmic Dawn Center (DAWN) at the Section for Astrophysics and Atmospheric Physics at DTU Space, invites applications for two PhD Fellowship positions starting in September 2021, or as soon as possible thereafter.  

DAWN is a center of excellence funded by the Danish National Research Foundation, and is located at the National Space Institute (DTU Space), Technical University of Denmark and the Niels Bohr Institute (NBI), University of Copenhagen.  The center brings together experts in all aspects of early Universe galaxy evolution and is deeply involved in major existing and upcoming surveys with HST, ALMA, Euclid and JWST, as well as cosmological and zoom-in simulations.  This call covers PhD positions based at DTU-Space, with a parallel call anticipated for positions at NBI on a similar timeline.  Applicants are encouraged to apply for both calls simultaneously.

DAWN has a number of associate members at major research institutes across Europe, North America, and Australia.  PhD students will have both an advisor in Copenhagen and an external advisor at one of our affiliated research institutes.  Students will also be expected to spend several months outside of Denmark, which could be at one of our affiliated institutes or another major research institute.  Our most recent PhD students have used this time at Cornell, Hawaii, and Oxford. For more information on the Center's activities and researchers, please see http://dawn.nbi.ku.dk 

Project descriptions
Fellowships are intended for outstanding candidates with a background in astronomy, physics, or related technical disciplines who are interested in doing research within DAWN’s research themes: high-redshift galaxy evolution, epoch of re-ionization, first stars and galaxies, dust and ISM in the early universe and dark matter. 

The first fellowship is intended to work on numerical simulations of the first galaxies as they formed and evolved during the cosmic dawn epoch.  One of the goals is to simulate the on-sky large-scale fluctuations in the line intensities of the first galaxies. Observing these fluctuations is called intensity mapping (IM), and is a new technique for studying the large-scale structure of the Universe. The IM signal depends both on the detailed astrophysical processes in the ISM within the galaxies as well as the underlying dark matter density.  The IM technique, therefore, provides important cosmological and astrophysical information, not readily obtained using other methods.

The second fellowship will mainly, but not exclusively, work on observational data of high-redshift galaxies and galaxy protoclusters. Part of the project will study distant galaxy protoclusters, the largest gravitationally bound objects in the Universe, and characterize their galaxy populations using multi-wavelength data obtained as part of the COSMOS survey, the RAGERS survey, the SPT survey, and the GLT+GISMO Extragalactic Survey. Numerical simulations of protoclusters will be undertaken in synergy with the observations to gain physical insight into their formation and evolution with cosmic time.

Positions are available for three years for candidates already holding a MSc. The successful applicants are expected to: manage and carry out their own research project, write half-year progress reports, disseminate results at conferences and through scientific articles, undertake teaching duties (up to 15% of working time) and attend PhD courses (30 ECTS). Also, a mandatory research stay during a semester abroad is to be foreseen.

Qualifications
Candidates should have a two-year master's degree (120 ECTS points) or a similar degree with an academic level equivalent to a two-year master's degree.

Approval and Enrolment
The scholarship for the PhD degree is subject to academic approval, and the candidate will be enrolled in one of the general degree programmes at DTU. For information about our enrolment requirements and the general planning of the PhD study programme, please see the DTU PhD Guide.

Assessment
The successful candidate has outstanding analytical and problem solving skills to become a committed researcher with a drive for excellence. Experience with python, machine learning and Bayesian statistics is an advantage but not required.

The assessment of the applicants will be made by DAWN Co-Director Thomas Greve and the DAWN staff.

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and appointment terms
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union. The period of employment is 3 years.

You can read more about career paths at DTU here.

Further information
Further information may be obtained from DAWN Co-Director Thomas Greve (tgreve@space.dtu.dk), tel.: +45 4525 9688.

You can read more about DTU Space at www.space.dtu.dk and the Cosmic Dawn Center at www.dawn.nbi.ku.dk

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark.

Application
Please submit your online application by 25 January 2021 (Danish time).

Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply online", fill out the online application form, and attach all your materials in English in one PDF file. The file must include:

  • A letter motivating the application (cover letter)
  • Curriculum vitae
  • Grade transcripts and BSc/MSc diploma
  • Excel sheet with translation of grades to the Danish grading system (see guidelines and Excel spreadsheet here)

Candidates may apply prior to ob­tai­ning their master's degree but cannot begin before having received it.

Applications and enclosures received after the deadline will not be considered.

All interested candidates irrespective of age, gender, race, disability, religion or ethnic background are encouraged to apply.

DTU Space has about 185 employees, an annual turn-over of about 150 MDKK and it is located at the Lyngby Campus of the Technical University of Denmark together with 19 other institutes within the technical sciences. As the National Space Institute, DTU Space is the leading institution of public space activities in Denmark. The mission of the Institute is to conduct research, development, public sector consultancy, education and innovation at the highest international level within the following areas: Space Technology & Instrumentation, Earth Observation & Geoscience and Space-& Astrophysics

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