CIGALE means Code Investigating GALaxy Emission. The code has been developed to study the evolution of galaxies by comparing modelled galaxy spectral energy distributions (SEDs) to observed ones from the far ultraviolet to the far infra-red.

CIGALE is a software that extends the SED fitting algorithm written by Burgarella et al.
(2005, MNRAS 360, 1411). But while the previous code was designed to fit SEDs in the optical and near infra-red, CIGALE is able to fit SEDs up to the far infra-red.

Once a Fortran application, CIGALE has been rewritten to Python (and is sometimes referred to with pcigale). The old Fortran code is still available for legacy.

CIGALE Bayesian is described in the following paper: Noll S., Burgarella D., Giovannoli E.,
Buat V., Marcillac D., Munoz-Mateos J. C.
(2009). This paper was written for CIGALE Fortran. New papers are in preparation that describe CIGALE Python: Boquien et al. (2016) and Burgarella et al. (2016).

CIGALE Monte Carlo Markov Chain (CIGALE Fortran) is described in the following paper:
Serra et al., 2011,
“CIGALEMC: Galaxy Parameter Estimation Using a Markov Chain Monte Carlo Approach with CIGALE”

CIGALE has been developed within the D-SIGALE (Dark Side of GALaxy Evolution) project led by Guilaine LAGACHE (IAS) and funded by the French Agence Nationale de la Recherche (ANR).

We encourage people to use CIGALE to analyse their observed SEDs and estimate physical parameters of the galaxies. If you plan to use code results for a publication, please refer to Noll et al. (2009) and to Serra et al. (2011) (note that the SED modelling is the same for both versions of the code, only the fitting procedure is different, so Noll et al. (2009) should be cited for both versions) depending on which version of CIGALE you used and provide the address of this web page.

Denis BURGARELLA1, Médéric BOQUIEN2, Laure CIESLA3, Stefan NOLL4, & Paolo SERRA5.

  1. Laboratoire d’Astrophysique de Marseille, France
  2. Universidad de Antofagasta, Chile
  3. CEA/SAp, France
  4. Institut für Astro- und Teilchenphysik, Universität Innsbruck, Austria
  5. Astrophysics Branch, NASA-Ames Research Center Moffett Field, CA, USA