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Table F.1:

Near-infrared photometry from the UKIDSS GCS DR4 compared to 2MASS for variable sources (with 99.5% confidence level).
IAU Namea J H K $J_{\rm 2MASS}$ $H_{\rm 2MASS}$ $K_{\rm 2MASS}$ diff J diff H diff K Comments
  mag mag mag mag mag mag mag mag mag  
UGCS J053753.98-024954.5 14.076 12.786 11.960 14.520 13.250 12.455 -0.444 -0.464 -0.495 M1129222b
UGCS J053820.50-023408.9 13.651 12.591 11.931 12.652 11.918 11.648 0.999 0.673 0.283 M380287c
UGCS J053834.46-025351.5 15.292 14.262 12.973 15.535 14.043 12.651 -0.243 0.219 0.322 M1082188d
UGCS J053849.29-022357.6 14.536 14.115 13.524 14.362 13.699 13.197 0.174 0.416 0.327 M726005e
UGCS J053904.59-024149.2 13.746 13.147 12.389 13.962 12.910 12.224 -0.216 0.237 0.165 M458140f
UGCS J053838.59-030220.1 13.913 13.187 12.660 13.711 12.962 12.566 0.202 0.225 0.094 M1583183d
UGCS J053855.42-024120.9 15.336 14.615 13.979 15.622 14.842 13.968 -0.286 -0.227 0.011 M358154g
UGCS J053825.43-024241.2 14.793 14.334 13.729 14.877 14.157 13.572 -0.084 0.177 0.157 M495216h
UGCS J053823.34-022534.6 13.802 13.115 12.583 13.685 12.928 12.424 0.117 0.187 0.159 M703333g
UGCS J053838.12-023202.6 14.808 14.270 13.449 14.800 13.771 13.197 0.008 0.499 0.252 M258337g
Note: the top part of the table lists sources showing variability in ${\it JHK}$ whereas the bottom part lists objects variable in two bands only. a IAU designations include J2000 (RA, dec.) coordinates from UKIDSS GCS DR4. b Weak H$\alpha$ detection reported by Weaver & Babcock (2004). c M4 with detection of lithium and H$\alpha$ equivalent width of 28Å (Zapatero Osorio et al. 2002b). d M1082188 and M1583183 were reported for the first time by Caballero (2008c) as photometric member candidates. e M5 with lithium, H$\alpha$ emission and disk (Kenyon et al. 2005); no Pa$\beta$/Pa$\gamma$ but HeI detected (Gatti et al. 2008). Faint companion detected on the GCS images. f M2 with disk, X-ray emission, HeI, lithium but no Pa$\beta$/Pa$\gamma$ (Gatti et al. 2008; Sacco et al. 2008). Faint companion detected on the GCS images. g Presence of disk reported by Hernández et al. (2007) and Caballero (2008c). h M6, H$\alpha$ emission and presence of disk. Reported to be variable by Caballero et al. (2004) with detailed discussion in Caballero et al. (2006b).

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