Physical Sciences and Mathematics Commons^™

Luminous And High Stellar Mass Candidate Galaxies At Z\Approx8 Discovered In Candels, Haojing Yan, Steven L. Finkelstein, Kuang-Han Huang, Russell E. Ryan, Henry C. Ferguson, Anton M. Koekemoer, Norman A. Grogin, Mark Dickinson, Jeffrey A. Newman, Rachel S. Somerville, Romeel Davé, S. M. Faber, Casey Papovich, Yicheng Guo, Mauro Giavalisco, Kyoung-Soo Lee, Naveem Reddy, Asantha R. Cooray, Brian D. Siana, Nimish P. Hathi, Giovanni G. Fazio, Matthew Ashby, Benjamin J. Weiner, Ray A. Lucas, Avishai Dekel, Laura Pentericci, Christopher J. Conselice, Dale D. Kocevski, Kamson Lai

Mauro Giavalisco

One key goal of the {\it Hubble Space Telescope} Cosmic Assembly Near-Infrared Deep Extragalactic Legacy Survey is to track galaxy evolution back to $z\approx 8$. Its two-tiered "wide and deep" strategy bridges significant gaps in existing near-infrared surveys. Here we report on $z\approx 8$ galaxy candidates selected as F105W-band dropouts in one of its deep fields, which covers $\sim 62.9$ arcmin$^2$ to 4 ks per filter depth in the Great Observatories Origins Deep Survey southern field. We construct two independent samples using different but legitimate photometry and procedure. While they differ significantly on an object-by-object basis, our conclusions based on …