• Laure Ciesla
  • CNES postdoctoral fellow in Astrophysics

About me

I'm a CNES fellow working at LAM (France) in collaboration with Véronique Buat and Samuel Boissier. In October 2018, I will start a CNRS permanent position at LAM.

My research lies in the framework of galaxy evolution. It is well-known that galaxies show a dichotomy in both morphology and colors. They are separated between the group of blue star-forming galaxies and the group of red and "dead" ones. One of the main question of galaxy evolution is to understand how galaxies evolve from the star-forming group to the passive one.

To tackle this problem I study the star formation history of galaxies by modeling their spectral energy distribution (SED). I especially focuss on the recent star formation history of galaxies using the versatility of the SED fitting code CIGALE. With the large amount of galaxies observed as well as the large wavelength coverage of these observations, we reached a point where we need robust statistical tools to understand the results of our fitting. I'm part of a collaborative effort between astrophysicists and statisticians to apply deep learning to SED fitting.




Awarded with a 2017 L'Oréal-UNESCO For Women in Science Fellowship

I am proud to be in the 2017 promotion of the 30 scientific women awarded with a L'Oréal-UNESCO fellowship to help me to pursue my research on galaxy evolution.


Laure Ciesla
Laboratoire d'Astrophysique de Marseille (LAM)
Pôle de l’Étoile Site de Château-Gombert
38, rue Frédéric Joliot-Curie
13388 Marseille cedex 13, FRANCE
+33 (0)4 91 05 69 07




  •  Identification of galaxies that experienced a recent major drop of star formation.
  •  Ciesla L., Elbaz D., Schreiber C., Daddi E., Wang T., 2018, A&A, in press
  •  On the SFR-Mstar main sequence archetypal star-formation history and analytical models.
  •  Ciesla L., Elbaz D., and Fensch J., 2017, A&A, 608, 41
  •  The imprint of rapid star formation quenching on the spectral energy distributions of galaxies.
  •  Ciesla L., Boselli A., Elbaz D., Boissier S., et al., 2016, A&A, 585, 43
  •  Constraining the properties of AGN host galaxies with spectral energy distribution modelling.
  •  Ciesla L., Charmandaris V., Georgakakis A., Berhnard E., Mitchell P.D., et al., 2015, A&A, 576, 10
  •  Dust spectral energy distributions of nearby galaxies: an insight from the Herschel Reference Survey.
  •  Ciesla L., Boquien M., Boselli A., Buat V., Cortese L., et al., 2014, A&A, 565, 128
  •  Submillimetre photometry of 323 nearby galaxies from the Herschel Reference Survey.
  •  Ciesla L., Boselli A., Smith M., Bendo G.J., Cortese L., Eales S., Bianchi S. et al., 2012, A&A, 543, 161


    2018 -

    CNES Fellow
    Laboratoire d'Astrophysique de Marseille, France

    2015 - 2017

    Research assistant
    CEA Service d'Astrophysique, France

    2013 - 2015

    Research assistant
    University of Crete, Physics Department, Greece

    2009 - 2012

    PhD in Astrophysics and Cosmology
    Study of the physical properties of local galaxies with Herschel
    with Alessandro Boselli
    Laboratoire d'Astrophysique de Marseille, France
    Aix-Marseille University, France