oliver hahn

 

Oliver Hahn
Boulevard de l’Observatoire CS 34229
06304 Nice Cedex 4
France

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Research interests

My main research focus is numerical simulations of structure formation in the Universe. Starting from our understanding of the very early universe, I perform simulations of a wide range of scales: how dark matter collapses and forms the seeds of galaxies, how the large-scale filamentary network of galaxies arises from the counteracting forces of the expansion of the universe and the pull of gravity; how the largest collapsed objects in the universe - clusters of hundreds and thousands of galaxies - form and evolve and what we can learn about our universe from those most extreme objects; and how galaxies form as part of the large-scale structure that feeds them with gas. I am also interested in developing numerical simulation techniques that allow us to answer questions about the universe both more precisely and more efficiently.

Awards:

  • Starting grant of the European Research Council (2015)
  • Ambizione fellowship of the Swiss National Science Foundation (2011)

Career trajectory

  • University Professor, UCA/OCA, Nice, France (since 2015)
  • SNSF Ambizione Research Fellow, ETH Zurich, Switzerland (2012-2015)
  • KIPAC Postdoctoral Fellow, Stanford University/SLAC, USA (2009-2012)
  • Graduate Researcher, ETH ZUrich, Switzerland (2005-2009)

Publications

 

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Sebastien Peirani
Boulevard de l’Observatoire CS 34229
06304 Nice Cedex 4
France

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Research interests

My research mainly focus on galaxy formation using hydrodynamical simulations. I try to characterize the role of the physical mechanisms that drive galaxy formation and evolution such as merger events between galaxies (and dark matter haloes), mass accretion into dark matter haloes, the influence of feedback processes associated to star formation (e.g. UV-background, supernovae explosion) as well as black holes growth and associated active galactic nuclei (AGN) activity. I’m particularly interested in the formation of early type galaxies as well as in Milky Way type objects where I use to perform high resolution zoom simulations. On larger scales, I take an interest in developing numerical methods in order to predict the clustering statistics in the Lyman-alpha forest. Otherwise, I also like working on the Vlasov equation and phase-space structures evolutions.

See also my personal webpage

Career trajectory

  • Reseacher - CNRS position - OCA, Nice, France - since 2017
  • Resercher - University of Tokyo, IPMU (JSPS fellowship) - 2016
  • Reseacher - CNRS position - Institut d’Astrophysique de Paris - 2010 - 2017
  • Postdoctoral Research - Institut d’Astrophysique de Paris - 2007 - 2010
  • Postdoctoral Research - University of Oxford (PPARC) - 2006-2007

Publications

 

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