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Julien Girard

  • PhD
  • Staff Astronomer
  • European Southern Observatory (ESO)
  • 16PublicationsNumber of items in Julien's My Publications folder on Mendeley.
  • 5Followers


Julien Girard is an instrumentation physicist/astronomer currently working as Operations Staff Astronomer at ESO spending his time between Santiago de Chile and Paranal Observatory (VLT telescopes). He joined ESO in 2009 as Adaptive Optics (AO) specialist to support the NaCo instrument as well as current/future AO facilities. He obtained a master's degree in Instrumentation Physics from the University of Utah after building a calibration system for the HiRes ultra-high-energy cosmic ray experiment. Back to the French Alps, he completed another master's in Astrophysics in Grenoble and tested integrated optics recombiners for long baseline interferometry. Appealed by high angular resolution instrumentation, he defended a PhD in 2005 at CRAL/Observatoire de Lyon for his contribution to the polychromatic laser guide star project ELPOA. Julien worked three years in Mexico City as a postdoctoral fellow at UNAM and as a professor at IPN. He helped developing a curvature based AO system in the laboratory and was involved in the robotization of telescopes for optical to infrared synoptic surveys and gamma ray bursts followups. His astronomical research interests are broad, from faint (brown dwarfs, planets) companion search to active galacti nuclei multi-wavelength characterization. Julien also enjoys participating to public outreach activities.

Recent publications

  • Feasibility study of the polychromatic laser guide star

    • Foy  
    • Pique  
    • Bellanger  
    • et al.
    Get full text
  • Polychromatic Laser Guide Star. Progress report and modeless laser

    • Foy  
    • Girard  
    • Tallon  
    • et al.

Professional experience

Staff Astronomer

European Southern Observatory (ESO)

August 2009 - Present

Profesor Titular

Instituto Politécnico Nacional

September 2008 - July 2009(10 months)

Postdoctoral Researcher

Instituto de Astronomía, UNAM

October 2006 - October 2008(2 years)


PhD (Doctorat) Physique et Astrophysique

Université Claude Bernard Lyon 1

October 2001 - October 2005(4 years)

Master (DEA) Astrophysique et Milieux Dilués

Université Grenoble 1, (France)

September 2000 - June 2001(9 months)

Master of Science in instrumentation Physics

The University of Utah

August 1998 - May 2000(2 years)

Undergraduate, DUT Mesures Physiques, DUETI

Université de Savoie

September 1996 - September 1999(3 years)

Followers (5)

Following (4)