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| Postdoc position in observational cosmology/photometric redshifts with Euclid | Closing date: 2021-10-15
Contact: Stéphane Paltani |
| We offer a postdoc position at the Department of Astronomy of the University of Geneva. The successful candidate will perform research activities to support the responsibilities of the Geneva group in the Euclid mission, a cosmology mission of the European Space Agency. They will be involved in the preparation of the reference sample that will be used to compute photometric redshifts. Thus significant experience with photometric redshifts is required. They will become a member of the Euclid Consortium, and participate in meetings dedicated to this mission. | | ▸ more | Euclid is the second Medium mission of the Cosmic Vision program of the European Space Agency. Euclid will study the evolution of the large-scale structure of the Universe through the mapping of dark matter and galaxies, in order to constrain the properties of dark energy. It is currently in the final stage of the implementation phase with a planned launch by the end of 2022.
The Department of Astronomy of the University of Geneva offers a modern and vibrant work environment, with a wide range of activities including theory, numerical simulations, observations and instrumental developments in the domains of exoplanets, stellar physics, galaxy evolution, observational cosmology and high-energy astrophysics. The Department of Astronomy has a very active program in the development of scientific software and operations for space missions, which it built over more than 25 years with the creation of the INTEGRAL Science Data Centre; it is now involved in several other scientific missions in space, e.g., Gaia, CHEOPS, Euclid or Athena. The Department of Astronomy is in particular an important member of the Euclid collaboration; it is hosting the Swiss Euclid Science Data Center and holds the responsibility of producing the photometric redshifts for the Euclid mission.
The postdoc is proposed in the framework of this collaboration. The successful candidate will be in charge of the determination of photometric redshifts and galaxy physical parameters in the Euclid reference fields that will be used to inform the determination of these parameters over the entire Euclid survey. Time for the candidate's own research program shall also be granted; ideally, it should be related to the science goals of Euclid.
The successful candidate must hold a PhD in astrophysics; they need to have demonstrated expertise in the computation of photometric redshifts, as well as in the determination of physical parameters of galaxies. A good understanding of data analysis methods, especially Bayesian statistics and machine-learning, is required, as well as good aptitudes with programming in Python or other programming languages. Candidates must send a motivation letter, a curriculum vitae, a list of publications and a statement of research interests in a single PDF to the e-mail address below. In addition two reference letters must be sent separately to the same e-mail address.
The position is for three years. The starting date is to be agreed with the candidate, but should not be later than April 1st, 2022.
All correspondence should be sent by e-mail, with the subject line containing 'Euclid postdoc'. Applications will be accepted until the position is filled, but no later than October 15, 2021. For applications or for further information, please contact:
Prof. Stéphane Paltani, Stephane.Paltani? @ ?unige.ch
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