posted on 2024-08-06, 11:46authored byPatrick J. McCarthy, Haojing Yan, Roberto G. Abraham, Erin Mentuch, Karl GlazebrookKarl Glazebrook, Lin Yan, Hsiao Wen Chen, S. Eric Persson, Preethi Nair, Sandra Savaglio, David Crampton, Stephanie Juneau, Damien Le Borgne, R. G. Carlberg, Ronald O. Marzke, Inger Jrgensen, Kathy Roth, Richard Murowinski
We describe a compact cluster or group of massive red galaxies at z = 1.5 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep H-band imaging from the Hubble Space Telescope (HST) reveals a high density of red galaxies associated with a galaxy with a spectroscopic redshift of 1.51. These galaxies have spectral energy distributions (SEDs) that peak between 3.6 and 4.5