General presentation

Researchers from the IAS are involved in the study of galaxy formation and evolution, and in particular the infrared galaxies. Research themes include: characterization of the Cosmic Infrared Background, statistical and individual studies of IR galaxies.

We make use of data from infrared space telescopes like Planck, Herschel, and previously IRAS, COBE, ISO and Spitzer (and other wavelength data). With Spitzer, we use both the imaging and spectroscopic capabilities. We also develop models and perform simulations to prepare the next generation of telescopes, like JWST, SPICA and EUCLID. Part of the work mentionned there are supported by INSU, CNES, and also ANR: ANR-06-BLAN-0170 and ANR-09-BLAN-0224-02.

Check also the summary of our activities in the main IAS web site

Scientific Highlights

Scientific Highlight [October 2010]:

New model of IR galaxy evolution, by Bethermin 2011 (AandA, subm) and: ArXiv1010.1150: See the new model pages with new products and programs !
Model save files updated on Apr 15th, 2011 !!!!

Scientific Highlight [September 2010]:

New estimates of the Far Infrared CIB Build-up since redshift 2 by Jauzac et al., 2011 AandA in press and: ArXiv1009.0419: See CIB/EBL pages !

Scientific Highlight [January 2010]:

New estimates of the Mid-IR and Far-IR Cosmic Infrared Background using Spitzer number counts and stacking by Bethermin et al. 2010 AandA: See Galaxies, Spitzer counts and CIB/EBL pages !

Scientific Highlight [January 2010]:

New work about Cosmic IR Background and implications on gamma rays absorption (Kneiske and Dole, 2010, AandA). Check the CIB/EBL and download pages !

Scientific Highlight [January 2010]:

Release of the IAS IDL stacking Library v1.0 ! Check download pages !

Scientific Highlight [September 2007]: Using Spitzer, we studied the fluctuations of the Cosmic Infrared Background to constrain the bias of IR galaxies. Lagache et al., 2007, ApJL.
[See the Press Release at IAS]
[See the Press Release at INSU/CNRS]