Properties of the nuclei and comae of 13 ecliptic comets from Hubble Space Telescope snapshot observations

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Volume 508 / No 2 (December III 2009)

A&A, 508 2 (2009) 1045-1056

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Table 4:

Properties of the nuclei of the comets.
Comet	$R_{\rm app}$ (mag)	$r_{\rm n}$ (km)	(V-R)	(B-V)	(R-I)
Solar colors:			0.35	0.65	0.28
4P/Faye	20.12 $\pm$ 0.03	1.77 $\pm$ 0.04	0.45 $\pm$ 0.04	-	-
10P/Tempel 2	14.77 $\pm$ 0.03	5.98 $\pm$ 0.04^*	0.49 $\pm$ 0.03	0.80 $\pm$ 0.02	0.52 $\pm$ 0.03
17P/Holmes	20.61 $\pm$ 0.04	1.71 $\pm$ 0.07	0.56 $\pm$ 0.02	-	-
37P/Forbes	20.83 $\pm$ 0.04	0.81 $\pm$ 0.04	0.29 $\pm$ 0.03	-	0.66 $\pm$ 0.06
44P/Reinmuth 2	19.83 $\pm$ 0.05	1.61 $\pm$ 0.07	0.62 $\pm$ 0.08	-	-
50P/Arend	20.58 $\pm$ 0.04	0.95 $\pm$ 0.03	0.81 $\pm$ 0.10	-	0.26 $\pm$ 0.09
59P/Kearns-Kwee	20.86 $\pm$ 0.05	0.79 $\pm$ 0.03	0.62 $\pm$ 0.07	-	0.27 $\pm$ 0.08
63P/Wild 1	19.17 $\pm$ 0.02	1.46 $\pm$ 0.03	0.50 $\pm$ 0.05	-	0.42 $\pm$ 0.04
71P/Clark	21.83 $\pm$ 0.07	0.68 $\pm$ 0.04	0.64 $\pm$ 0.07	-	-
84P/Giclas	20.59 $\pm$ 0.04	0.90 $\pm$ 0.05	0.32 $\pm$ 0.03	-	-
106P/Schuster	18.91 $\pm$ 0.03	0.94 $\pm$ 0.03	0.52 $\pm$ 0.06	1.01 $\pm$ 0.06	0.45 $\pm$ 0.06
112P/Urata-Niijima	20.96 $\pm$ 0.04	0.90 $\pm$ 0.05	0.53 $\pm$ 0.04	-	-
114P/Wiseman-Skiff	19.73 $\pm$ 0.04	0.78 $\pm$ 0.05	0.46 $\pm$ 0.02	0.85 $\pm$ 0.03	0.54 $\pm$ 0.02

$R_{\rm app}$ : apparent magnitude of the nucleus in the Johnson-Kron-Cousins photometric system.
$r_{\rm n}$ : effective radius of the nucleus assuming p_R = 0.04, $\beta = 0.040$ mag/deg except 10P/Tempel 2 (V-R), (B-V), (R-I): color indices.
^*using p_R = 0.024 as measured independently.

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