The Cluster Lensing And Supernova survey with Hubble (CLASH) is an HST Multi-Cycle Treasury program (PI: Marc Postman) to survey 25 massive galaxy clusters at 16 wavelengths spanning from the near-UV to the near-IR (Postman et al. (2012)). The full HST dataset and associated catalogs and gravitational lens models are available at MAST. A series of programs with Spitzer have covered all CLASH galaxy clusters with IRAC Channels 1 and 2 (3.6 and 4.5 micron). Several of the targets include Channels 3 and 4 (5.8 and 8 micron) data. Spitzer mosaics, catalogs, and PSF images are available at IRSA.

The December 2014 update added the cluster CLJ1226.

You can access CLASH Spitzer data in a variety of ways:

• The CLASH fields are represented as overlays in red on the all-sky ISSA image above. Click on any red region to access the Spitzer mosaics for that position.
• Use the form below to enter a coordinate or object name to search for Spitzer mosaics.
• Browse a table of the clusters.
• Download fits or jpg cutouts of the Spitzer mosaics.
• Search Spitzer catalogs.
• Download PSF images.

More information on the CLASH project can be found here:

• The canonical paper for CLASH is Postman et al. (2012).
• Please also reference Moustakas et al. in preparation if you use the CLASH Spitzer data.
• CLASH Home Page

Access all the SPITZER Legacy datasets at IRSA.