Anne Verhamme

Dr. Anne Verhamme

ERC Starting Grantee and SNF Professor

Observatoire de Sauverny S441
+41 22 379 23 68
+41 22 379 22 05


Anne Verhamme obtained her PhD degree in Astronomy at the University of Geneva (Switzerland) in 2008, under supervision of D. Schaerer, working on Lyman-alpha radiation transfer effects in galaxies. In 2009, she was an SNF fellow at the Astrophysics department of Oxford University, working in the galaxy formation group with J. Silk, A. Slyz and J. Devriendt. From 2010 to 2012, she obtained a european Marie Curie fellowship to work at CRAL, in Lyon, in the galaxy formation team with R. Bacon, PI of VLT-MUSE, and J. Blaizot, to compute the Lyman-alpha properties of virtual galaxies. Since sept 2012, she has an independent post-doc position at the University of Geneva (Excellence Fellow of the University of Geneva for 3 years, “Marie Heim Vogtlin” SNF Fellow for 2 years) and works on spectral diagnostics to study the escape of ionising photons and gas flows around galaxies, at the interface between simulations (coupling our radiation transfer code with radiation hydrodynamical simulations of galaxy formation) and observations (as a member of the MUSE consortium, and Associated Researcher at CRAL, Lyon).

She currently works on new methods to select galaxies which emit ionising flux, those which probably reionised the Universe, from their Lyman-alpha properties (spectral shape and/or extend of their Lya halos), with a newly developed radiation transfer code, RASCAS,  efficiently parallelised, and interfaced with state-of-the-art radiation hydrodynamic (RHD) simulations of galaxy formation.


Research interests

    • radiation transfer of resonant lines (Lyman-alpha in particular) in astrophysical media: predictions from numerical simulations, comparison with observations
    • formation and evolution of galaxies
    • reionisation of the Universe, and the escape of ionising photons from galaxies
    • gas flows around galaxies
    • polarisation of Lyman-alpha nebulae: predictions from numerical simulations, comparison with observations


  • organizer of the 2016 Saas-Fee course on “Lyman-alpha as an astrophysical and cosmological tool”
  • member of the LARS (Lyman Alpha Reference Sample) project
  • member of the VLT-MUSE consortium, involved in the characterisation of Lyman-alpha emitting galaxies in MUSE deep fields
  • collaboration with 3 american teams to work on Hubble Space Telescope data to study the lyman-alpha properties of local Extreme Emission Lines galaxies
  • referee for ApJ, A&A, MNRAS