Limits on the luminosity function of Lyα emitters at z = 7.7

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Volume 515 (June 2010)

A&A, 515 (2010) A97

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Table 1:

Observational data.
Instrument	Band	Integration	Limiting
		time (h)	magnitude^a
MegaCam	$u^{\ast}$	20.7	27.9
MegaCam	g'	25	28.1
MegaCam	r'	49	27.8
MegaCam	i'	74	27.4
MegaCam	z'	55.8	26.5
WIRCam	NB 1st epoch	20	24.8
WIRCam	NB 2nd epoch	20	24.9
WIRCam	NB combined	40	25.2
WIRCam	J	6.2	25.0^b
WIRCam	H	7.7	24.7
WIRCam	$K_{\rm s}$	8.9	24.7^b
IRAC	3.6 $\mu$ m	0.034	22.2
IRAC	4.5 $\mu$ m	0.034	21.5

Notes. ^(a) $4 \sigma$ magnitude limits in apertures 1.5 $^{\prime\prime}$ in diameter for MegaCam and WIRCam. These limits correspond to a 50% completeness level. IRAC limiting magnitudes are 5 $\sigma$ in 3.8 $^{\prime\prime}$ apertures. ^(b) In one quarter of the field, for which additional NTT/SOFI data were available, magnitude limits of 25.2 in J and 24.8 in $K_{\rm s}$ were achieved.

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