2 papers
astro-ph.GA2020
Optical and near-infrared observations of the SPT2349-56 proto-cluster core at z = 4.3
K. M. Rotermund, S. C. Chapman, K. A. Phadke +20
We present Gemini-S and {\it Spitzer}-IRAC optical-through-near-IR observations in the field of the SPT2349-56 proto-cluster at . We detect optical/IR counterparts for only…
astro-ph.GA2018
A massive core for a cluster of galaxies at a redshift of 4.3
T. B. Miller, S. C. Chapman, M. Aravena +35
Massive galaxy clusters are now found as early as 3 billion years after the Big Bang, containing stars that formed at even earlier epochs. The high-redshift progenitors of these ga…