CLASH: Photometric redshifts with 16 HST bands in galaxy cluster fields

Jouvel, S.; Host, O.; Lahav, O.; Seitz, S.; Molino, A.; Coe, D.; Postman, M.; Moustakas, L.; Benitez, N.; Rosati, P.; Balestra, I.; Grillo, C.; Bradley, L.; Fritz, A.; Kelson, D.; Koekemoer, A. M.; Lemze, D.; Medezinski, E.; Mercurio, A.; Moustakas, J.; Nonino, M.; Scodeggio, M.; Zheng, W.; Zitrin, A.; Bartelmann, M.; Bouwens, R.; Broadhurst, T.; Donahue, M.; Ford, H.; Graves, G.; Infante, L.; Jimenez-Teja, Y.; Lazkoz, R.; Melchior, P.; Meneghetti, M.; Merten, J.; Ogaz, S.; Umetsu, K.
2014
ASTRONOMY & ASTROPHYSICS
DOI
10.1051/0004-6361/201322419
Context. The Cluster Lensing And Supernovae survey with Hubble (CLASH) is a Hubble Space Telescope (HST) Multi-Cycle Treasury programme that observes 25 massive galaxy clusters, 20 of which were X-ray-selected to preferably choose dynamically relaxed clusters, and 5 additional "high magnification" clusters, which were selected based on their optical lensing properties. CLASH aims to study the dark matter distribution of the clusters and find magnified high-redshift galaxies behind them. CLASH observations were carried out in 16 bands from UV to NIR to derive accurate and reliable estimates of photometric redshifts.