The Extended GMRT Radio Halo Survey - I. New upper limits on radio halos and mini-halos

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Volume 557 (September 2013)

A&A, 557 (2013) A99

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Table 3

Radio power upper limits using radio halo (first 11) and mini-halo injections. See Sect. 5 for details.

Cluster	z	rms^a	S _{610 MHz}	Log (P_1.4GHz
Name		mJy b^-1	mJy	W Hz^-1 )

Abell 1576	0.302	0.09	6	23.78
RX J0439.0+0520	0.208	0.06	7	23.47
RX J0439.0+0715	0.244	0.07	7	23.63
RX J0142.0+2131	0.280	0.07	5	23.62
Abell 689^b	0.279	0.10	−	−
Abell 267	0.230	0.15	6	23.50
Z348	0.254	0.13	9	23.78
Abell 2261	0.224	0.06	6	23.48
RXC J0437.1+0043^c	0.284	0.25	7	23.78
RXC J1212.3–1816^c	0.269	0.40	7	23.73
Abell 2485^c	0.247	0.25	7	23.64

RXC J1115.8+0129	0.350	0.045	2	23.45
Z2089	0.234	0.045	5	23.44
Z2701	0.214	0.075	3	23.13
Z348	0.254	0.13	3	23.30
RX J0439.0+0520	0.208	0.06	5	23.33
Abell 2667^d	0.226	0.10	−	−

Notes.

^(a)

rms noise in images tapered to HPBW ~ 18′′−25′′.

^(b)

A reliable upper limit could not be obtained owing to a central bright source in the cluster.

^(c)

The upper limits are scaled from those at 325 MHz using a spectral index of 1.3.

^(d)

Upper limit was not obtained owing to a radio galaxy near the cluster centre.

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