Galaxy Zoo: Morphologies based on UKIDSS NIR Imaging for 71,052 Galaxies

Karen L. Masters, Melanie Galloway, Lucy Fortson, Chris Lintott, Mike Read, Claudia Scarlata, Brooke Simmons, Mike Walmsley, Kyle Willett

Published 2024-08-19Version 1

We present morphological classifications based on Galaxy Zoo analysis of 71,052 galaxies with imaging from the United Kingdom Infrared Telescope Infrared Deep Sky Survey (UKIDSS). Galaxies were selected out of the Galaxy Zoo 2 (GZ2) sample, so also have gri imaging from the Sloan Digital Sky Survey. An identical classification tree, and vote weighting/aggregation was applied to both UKIDSS and GZ2 classifications enabling direct comparisons. With this Research Note we provide a public release of the GZ:UKIDSS morphologies and discuss some initial comparisons with GZ2.