Galaxy, INterstellar matter and Cosmology (GINCO)

IDOC/GINCO gather all activities on Galaxy, INterstellar matter and cosmology on several space, balloon and ground mission. It has an important role in data processing, distribution and interpretation, for several astronomy missions at long wavelength. In this matter, GINCO :

  • develops and maintains high level analysis pipelines
  • develops and maintains data archives & access
  • develops, maintains and distribute high level software for data analysis
  • offers scientific expertise for mission using long wavelength detectors
  • plays an important role in education and outreach to the general public

IDOC-Grande Longueur d'Onde - IDOC-GLO

High level analysis pipeline

Since its creation, IDOC-GLO develops and maintain an expertise in high level analysis pipelines on dataset from space instruments at long wavelength. As an example, new algorithms have been developed to correct for instrumental effects in the case of the ISOCAM instrument on bord of ISO, all of the datasets delivered by ESA have been processed with this algorithm. The IRAS all sky survey has also been reprocessed to correct for residual instrumental effects and photometric uncertainties. The Improved Recprocessing of the IRAS Survey (IRIS) is now available through the IDOC, the IRSA, or the CDS in Strasbourg via Aladin.

Data processing and analysis of the Herschel and Planck mission are in the center of GINCO activities. We are developing the photometric cross-calibration of the two missions. Moreover, in the case of the Herschel/SPIRE instrument, we have the responsibility of developing high level algorithm to recover large scale diffuse emission. In particular, we are developing and maintaining new map making techniques based on the maximum likelihood or bayesian inversion methods, the latter allowing to gain high angular resolution.

Data Archives 

IDOC-GLO use the CNES Information Tools,  SITools2, to deliver our data. You can access our main portal or directly go to he Herschel dedicated portal or the Planck WG5 Repository

IDOC GincoIDOC HerschelPlanck ProductsPlanck WG5Planck SZCLUSTER-DB

Software

IDOC-GLO is actively developing and maintaining a large class of software dedicated to data analysis and interpretation :

Sanepic Signal And Noise Estimation Procedure Including Correlations
SUPREME A SUPer REsolution Mapmaker for Extended emission
hpproj Projection of Healpix maps onto a planar grid

Dust EMission - DustEM

DustEM is a numerical tool that computes the extinction, the emission, and the polarisation of interstellar dust grains heated by photons. It is written in fortran 95 and is jointly developed by Institut d'Astrophysique Spatiale (IAS) and Institut de Recherche en Astrophysique et Planétologie (IRAP). The dust emission is calculated in the optically thin limit (no radiative transfer) and the default spectral range is 0.04 and 105 μm. The code has been designed so that dust properties can easily be changed and mixed and to allow for the inclusion of new grain physics. Data for DustEM is generated by the IDL code DustProp which features methods to compute dust optical properties (e.g., Mie, T-matrix, DDA) and heat capacities (internal use only). A description and illustration of DustEM can be found in Compiègne et al. (2011). The DustEM Wrapper IDL tool uses DustEM to compute fluxes in a wide range of instrumental bands and to fit dust parameters. DustEM is coupled to the Meudon PDR code where it handles dust physics. DustEM is also coupled to the continuum radiative transfer codes CRT of the University of Helsinki as described and SKIRT of the University of Ghent.

 

And More

GINCO also support other activites related to diffusion of software code or data related to Galaxy Interstellar matter and Cosmology, namely results of InfraRed Galaxies Formation and Evolution models (IRGal), code to estimate power spectra from maps with complex masks (POKER) or perform stacking analysis on images

Acknowledgements :

Using GINCO is free of charge. However, if you research benefits from its use, then we request that you include the following acknowledgement in your publications: 

We acknowledge the use of the Galaxies, INterstellar mater & COsmology (GINCO) archive for the Integrated Data & Operation Center (IDOC). Support for IDOC is provided by CNRS & CNES.