Infrared-faint radio sources in the SERVS deep fields - Pinpointing AGNs at high redshift

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Table 1

Main parameters of the radio, SWIRE, and SERVS surveys, together with the number of 1st generation IFRSs identified in each SWIRE and SERVS 3.6 μm field.

Field	1.4 GHz^a	SWIRE^b		SERVS^c
name	Area	Area	IFRSs	Area	IFRSs
	(deg²)	(deg²)	(#)	(deg²)	(#)
(1)	(2)	(3)	(4)	(5)	(6)

CDFS	3.7	6.58	22	4.5	21
ELAIS-S1	3.9	14.26	29	3.0	17
ELAIS-N1	15.2	8.70	18	2.0	5

Total			69		43

Notes.

^(a)

The 1.4 GHz flux density limit is ~100 μJy in CDFS and ELAIS-S1 fields, and is ~275 μJy in ELAIS-N1.

^(b)

The SWIRE coverage refers to the IRAC instrument only. The average SWIRE 5σ flux density limits are 3.7, 5.4, 48 and 37.8 μJy in the four IRAC bands, respectively; and 0.23, 18, 150 mJy in the three MIPS bands, respectively.

^(c)

The average SERVS 5σ flux density limits are 1.9 μJy at 3.6 μm band, and 2.2 μJy at 4.5 μm band.

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