I'm a postdoc researcher working at CEA (France) in collaboration with David Elbaz on the Star Formation History of Galaxies.
During my PhD at the Laboratoire d'Astrophysique de Marseille (France), I studied the dust properties of the local galaxies of the Herschel Reference Survey (PI: S. Eales, Boselli et al. 2010), a sample designed to be representative of the local universe, under the supervision of Alessandro Boselli. I acquired an extensive expertise in Herschel data and in the analysis and modeling of the infrared SED of galaxies.
From studying the local universe and normal star forming galaxies, I extended my research interest to the UV-to-radio emission of high redshift galaxies and Actve Galactic Nuclei in collaboration with Vassilis Charmandaris at the University of Crete (Greece).
I am now at CEA working on extragalactic deep surveys as part of the ASTRODEEP PF7 to study the star formation history of galaxies. From January, 1st, I will be at LAM (Marseille, France) starting a CNES fellowship on the study of Gamma Ray Burst host galaxies and the telescope SVOM.
A good characterization and modeling of the star formation of galaxies is not straightforward because part of the light emitted by the young stars in UV-optical is absorbed by dust and re-emitted in infrared. The constraints on dust properties and its emission in IR are thus of paramount importance to correctly estimate the star formation rate of galaxies. I studied the dust properties of the Herschel Reference Survey sample, representative of the local universe
Each physical process taking place in a galaxy leaves its imprint on its spectral energy distribution (SED). Combining multi-wavelength data over the entire spectrum is the only way to break the degeneracies and model the different physical processes. The approach I use is UV-to-radio broad band SED fitting with a particular interest in the AGN/host SED decomposition. I'm involved in the development of the new CIGALE SED modeling code.
High redshift galaxies show a large variety in dust content which can be related to the stellar population, since metals which compose dust, are produced by stars. Therefore, it is important to understand the origin and evolution of dust leading to this large variety in dust content, and thus SEDs, at high redshifts. I'm involved in GOODS-ALM, one of the first large survey performed with ALMA in order to trace the evolution of the IR SED of the sources and thus their dust properties. This will lead to a better constraint of the star formation activity of high redshift galaxies.