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 6.1 Comparison to other variability studies of brown dwarfsVos et al. (2019) studied the near-infrared variability of 30 relativelyyoung (∼10–200 Myr) low-gravity brown dwarfs, finding that browndwarfs of spectral type L0–L8.5 had a higher variability occurrence(∼30%) than older brown dwarfs in the field (∼11%). Vos et al.’sstudy made use of near-infrared monitoring at퐽,퐽푆and퐾푆bandswith the New Technology Telescope (NTT) of La Silla Observatoryin Chile, and UKIRT of Hawai‘i. Their search focused especially on
searching for low-amplitude, periodic variability, with a cadence of∼30 times per hour, time coverage of 2–6 hours, and photometricsensitivity of∼1%.