Serendipitous decametre detection of ultra steep spectrum radio emission in Abell 655

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Table 2.

Properties of the radio images presented in Fig. 4.

	Frequency	Noise	Resolution ⁽¹⁾
LBA Low	15–30 MHz	17 mJy beam⁻¹	40″ × 24″
LBA High	30–60 MHz	3.2 mJy beam⁻¹	19″ × 12″
HBA	120–167 MHz	0.28 mJy beam⁻¹	24″ × 22″ ⁽²⁾
GMRT	550–750 MHz	9.5 μJy beam⁻¹	8″ × 3.4″

Notes.

⁽¹⁾

The resolution reported here represents the major axis × minor axis of the restoring beam.

⁽²⁾

The resolution is set by a uv-taper that matches a physical size of 25 kpc at the cluster redshift.

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