The very steep spectrum radio halo in Abell 697 | Astronomy & Astrophysics (A&A)

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Table 2:

Summary of the GMRT radio observations.
Observation	$\nu$	$\Delta \nu$	t	HPBW, PA	rms	u-v range
date	(MHz)	(MHz)	(min)	(full array , $^{\prime \prime}\times^{\prime \prime}$ , $^{\circ }$ )	( $\mu$ Jy b^-1)	(k $\lambda$ )
17 Jan. 2007	325	32(16)^*	480	10.0 $\times$ 9.1, -64	45	$\sim$ 0.08-25

Notes. ^(*) The observations were performed using a total bandwidth of 32 MHz (USB+LSB), but only the USB dataset was used for the analysis (see Sect. 2.1).

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