The Frontier Fields: Survey Design
J. M. Lotz, A. Koekemoer, D. Coe, N. Grogin, P. Capak, J. Mack, J., Anderson, R. Avila, E. A. Barker, D. Borncamp, G. Brammer, M. Durbin, H., Gunning, B. Hilbert, H. Jenkner, H. Khandrika, Z. Levay, R. A. Lucas, J., MacKenty, S. Ogaz, B. Porterfield, N. Reid, M. Robberto

TL;DR
The Frontier Fields project uses HST and Spitzer to observe galaxy clusters and their lensed galaxies, achieving unprecedented depth and magnification to study the early universe and dark matter distribution.
Contribution
This paper presents the design and initial results of the Frontier Fields survey, combining multiple telescopes and gravitational lensing to explore the distant universe.
Findings
Probed galaxies at redshifts 6-10 beyond previous limits.
Mapped dark matter in clusters with unprecedented resolution.
Detected lensed transient events.
Abstract
The Frontier Fields are a director's discretionary time campaign with HST and the Spitzer Space Telescope to see deeper into the universe than ever before. The Frontier Fields combine the power of HST and Spitzer with the natural gravitational telescopes of massive high-magnification clusters of galaxies to produce the deepest observations of clusters and their lensed galaxies ever obtained. Six clusters - Abell 2744, MACSJ0416.1-2403, MACSJ0717.5+3745, MACSJ1149.5+2223, Abell S1063, and Abell 370 - were selected based on their lensing strength, sky darkness, Galactic extinction, parallel field suitability, accessibility to ground-based facilities, HST, Spitzer and JWST observability, and pre-existing ancillary data. These clusters have been targeted by the HST ACS/WFC and WFC3/IR with coordinated parallels of adjacent blank fields for over 840 HST orbits. The Spitzer Space Telescope…
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