The bright end of the z ~ 7 UV luminosity function from a wide and deep HAWK-I survey

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Table 2

NTTDF – observations.

Filter	Instr.	Exp. time (s)	Seeing (arcsec)	Mag. limit^a

U-Bessel	FORS1	32 876	0.84	27.8
B-Bessel	FORS1	16 064	0.56	28.9
V-Bessel	FORS1	10 500	0.47	29.0
R-Special	FORS2	14 000	0.79	28.4
I-Bessel	FORS2	7830	0.61	28.0
Z-Gunn	FORS2	46 386	0.60	28.4
Y-Open	HAWK-I	54 180	0.49	28.3^b
J-Open	HAWK-I	14 400	0.47	26.7
Ks-Open	HAWK-I	24 720	0.39	26.3

Notes.

^(a)

S/N = 1;

^(b)

Y = 26.5 at S/N = 5.

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