Ultracool dwarfs candidates based on 6 yr of the Dark Energy Survey data
Ultracool dwarfs candidates based on 6 yr of the Dark Energy Survey data
ABSTRACT We present a sample of 19 583 ultracool dwarf candidates brighter than z ≤23 selected from the Dark Energy Survey DR2 coadd data matched to VHS DR6, VIKING DR5, and AllWISE covering ∼ 480 deg2. The ultracool candidates were first pre-selected based on their (i–z), (z–Y), and (Y–J) colours. …