The first spectral line surveys searching for signals from the dark ages

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Table 5:

Upper limits in mK as a function of angular size on the sky from the spectral surveys observations during 2006/07 (deep searches are not included) using 1, 4 and 16 MHz channel spacings.
		1 MHz channel spacing
Position	2-5 $^\prime$	Peak intensity	5-10 $^\prime$	Peak intensity	10-15 $^\prime$	Peak intensity	15-30 $^\prime$	Peak intensity
	1 $\sigma$ [mK]	[ $\sigma$ ]	1 $\sigma$ [mK]	[ $\sigma$ ]	1 $\sigma$ [mK]	[ $\sigma$ ]	1 $\sigma$ [mK]	[ $\sigma$ ]
A	16 (23)	3.0 (3.3)	21 (31)	3.2 (3.4)	21 (31)	3.2 (3.4)	21 (31)	3.2 (3.4)
B	17 (26)	3.1 (2.9)	23 (34)	3.3 (3.2)	23 (34)	3.3 (3.2)	-	-
C	19 (26)	3.3 (3.0)	19 (26)	3.3 (3.0)	25 (35)	3.1 (3.2)	-	-
D	15 (25)	3.1 (2.9)	15 (25)	3.1 (2.9)	20 (33)	3.2 (3.1)	20 (33)	3.2 (3.1)
		4 MHz channel spacing
A	10 (15)	3.0 (2.8)	13 (20)	3.0 (2.9)	13 (20)	3.0 (2.9)	13 (20)	3.0 (2.9)
B	11 (17)	2.7 (3.0)	15 (23)	2.9 (3.1)	15 (23)	2.9 (3.1)	-	-
C	12 (16)	3.0 (2.9)	12 (16)	3.0 (2.9)	16 (22)	2.9 (3.0)	-	-
D	10 (15)	2.9 (3.1)	10 (15)	2.9 (3.1)	13 (20)	3.1 (3.0)	13 (20)	3.1 (3.0)
		16 MHz channel spacing
A	5 (8)	2.7 (2.8)	6 (11)	3.0 (2.9)	6 (11)	3.0 (2.9)	6 (11)	3.0 (2.9)
B	6 (9)	2.8 (3.0)	8 (12)	2.7 (3.1)	8 (12)	2.7 (3.1)	-	-
C	6 (11)	2.7 (2.8)	6 (11)	2.7 (2.8)	8 (14)	3.0 (2.9)	-	-
D	5 (8)	2.9 (3.0)	5 (8)	2.9 (3.0)	7 (11)	2.8 (3.1)	7 (11)	2.8 (3.1)

Notes. The limits are for the data taken with the AOS(AC) and for frequency ranges 542.0-547.5 (486.5-492) GHz.

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