2 HST.CLASH ivo://mast.stsci/clash doi:10.17909/T90W2B Space Telescope Science Institute Archive PI: Marc Postman 1.0 Archive Branch, STScI archive@stsci.edu Observational astronomy Galactic and extragalactic astronomy infrared astronomy optical astronomy ultraviolet astronomy galaxies Dark Matter Supernovae galatic evolution By observing 25 massive galaxy clusters with HST's new panchromatic imaging capabilities (Wide-field Camera 3, WFC3, and the Advanced Camera for Surveys, ACS), CLASH will accomplish its four primary science goals: - Map, with unprecedented accuracy, the distribution of dark matter in galaxy clusters using strong and weak gravitational lensing; - Detect Type Ia supernovae out to redshift z ~ 2, allowing us to test the constancy of dark energy's repulsive force over time and look for any evolutionary effects in the supernovae themselves; - Detect and characterize some of the most distant galaxies yet discovered at z > 7 (when the Universe was younger than 800 million years old - or less than 6% of its current age); - Study the internal structure and evolution of the galaxies in and behind these clusters. http://archive.stsci.edu/prepds/clash/ Archive Research 2 http://archive.stsci.edu/siap/search.php?id=clash& GET Pointed 360.0 360.0 360.0 360.0 0 0 100000000 72 181.55 2.93 1.0 1.0 HST ACS WFC3 Optical Infrared UV