Results from the HST Treasury Program RELICS: Reionization Lensing Cluster Survey
Abstract
Building on the successes of CLASH and the Frontier Fields, RELICS performed a relatively shallow and wide survey of 41 massive clusters. Our HST Treasury Program obtained 188 orbits of ACS and WFC3/IR imaging, and our Spitzer IRAC imaging programs totaled 945 hours. Using the gravitational lensing power of these clusters, we discovered over 300 high-redshift candidates at z ~ 6 - 10 (see talks by Bradley, Paterno-Mahler, and Welch). RELICS also delivered high-z analogs at z ~ 2 that were studied in more detail spectroscopically. Multiple observing epochs yielded 11 supernova discoveries, including 3 lensed supernovae, one of which is a candidate z ~ 2 Type Ia. Reduced HST images, catalogs, and lens models are available on MAST, and reduced Spitzer images are available on IRSA. For more info, see relics.stsci.edu.
- Publication:
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American Astronomical Society Meeting Abstracts #235
- Pub Date:
- January 2020
- Bibcode:
- 2020AAS...23512306C