The figure above depicts distance modulus versus redshift for a subset of the Hawai’i Supernova Flows sample with colors indicating predicted peculiar velocity from the 2M++ model. This survey will directly measure the component of Hubble scatter from peculiar velocities. UKIRT’s NIR coverage should reduce distance scatter by up to 30% and substantially reduce systemic…

UKIRT has discovered a free-floating planetary mass brown dwarf, J050626.96+073842.4 (pictured above). J050626.96+073842.4 has the reddest known colors of any brown dwarf around L/T transition — young and very dusty atmosphere. Below is photometric data from the UHS survey and the USNO-UKIRT parallax.

UKIRT has assisted in the discovery of SPECULOOS-3 b—an earth-sized exoplanet in a 17 hour orbit around an M6.5-type dwarf star 16.8 parsecs away. A K-band transit light curve was obtained from UKIRT using the UKIRT Wide Field Camera (WFCAM) on two epochs. The exoplanet is suitable for spectroscopic studies from JWST. Pictured above are…