New BVRI photometry results on Kuiper Belt Objects from the ESO VLT

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Volume 494 / No 2 (February I 2009)

A&A, 494 2 (2009) 693-706

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Table 3:

Objects with possible short-term brightness variability.
	Object	Type	$\Delta t$ (min)	$\Delta R$ (mag)	$\sigma_{\rm phot}$	R-range
3 $\sigma$ var.	1997SZ₁₀	2:1	33	0.36	0.06	22.82-23.18
	2000CR₁₀₅	ESDO	50	0.21	0.05	23.28-23.49
	2000YC₂	SDO	42	0.33	0.10	22.86-23.19
	2000YU₁	Hot	44	0.12	0.03	23.77-23.89
	2003AZ₈₄	3:2	18	0.20	0.01	20.04-20.24
	2003QB₁₁₂	Hot	151	0.48	0.05	22.40-22.88
	2003QY₁₁₁	Cold	156	0.72	0.11	23.10-23.82
$\leq$ $2\sigma$ var.	2000CP₁₀₄	Hot	58	0.08	0.04	23.17-23.25
	2001QX₃₂₂	SDO	24	-	0.05	21.97-22.01
	2002UX₂₅	Hot	46	-	0.01	19.63-19.64
	2003QW₉₀	Hot	18	-	0.01	21.16-21.19

Type, is the dynamical classification of the objects as described in Sect. 3: hot (classical with $i>4.5^{\circ}$ ), cold (classical with $i<4.5^{\circ}$ ), SDO (scattered disk object), ESDO (extended scattered disk object), 2:1 and 3:2 (Neptune's resonant objects). $\Delta t$ , is the measurement interval in minutes. $\Delta R$ , is the R-magnitude variation. $\sigma_{\rm phot}$ is the uncertainty of the relative photometry of the object (see text). R-range, is the total range of the R magnitudes measured. We do not include the $\Delta R$ s that are less than $\sigma_{\rm phot}$ .

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