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Table 9

Promising targets for ASTRO-H observations.

Cluster Source Type z Size α ks) Ms) Bdt(1Ms) B eq

Bullet H 0.30 19 1.5 0.84 1.37 1.00 1.2
Toothbrusha R 0.23 18 1.1 1.08 1.95 1.65 7.4–9.2
A0013a R 0.09 5 2.3 1.10 1.63 1.98
A0085 R 0.06 26 1.6 1.33 2.11 1.79 1.1–2.4
AS753a R 0.01 318 2.1 1.30 1.91 1.08 1.3
Coma H 0.02 710 1.2 0.20 0.34 0.36 0.5 0.7–1.9
R 400 1.2 0.27 0.47 0.28 0.6 0.7–1.7
A1914 H 0.17 30 1.9 1.18 1.77 1.12 0.6 1.3
A2048a R 0.10 7 2.3 1.41 2.08 2.43
A2063 R 0.03 3 1.2 2.25 4.12 5.51
A2255 H 0.08 79 1.6 0.61 0.96 0.60 0.5
A2319 H 0.06 198 1.7 0.56 0.88 0.65 0.5
A3667 NW R 0.06 250 1.0 1.12 2.02 0.94 1.5–2.5
PLCK G287.0+32.9a N R 0.39 7 1.3 0.77 1.35 1.57
S R 0.39 6 1.5 1.05 1.75 4.14

Notes. We summarise all objects that meet the criteria for being considered promising targets (see main text for details) and the corresponding magnetic field values testable by ASTRO-H in 100 ks and 1 Ms of observations in μG. We show the most optimistic values obtained adopting the signal-to-noise approach, , and also the more pessimistic estimates based on the intersection point between the background emission and the ASTRO-H sensitivity, Bdt, for 1 Ms of observations. We indicate the type of source, either radio halo (H) or radio relic (R), and, in case more than one relic is present in a given cluster, we explicitly mention which source we are referring to. We also report the approximate surface on the sky in arcmin2 and the spectral index α. Finally, we also show (revised) equipartition estimates, in μG, where available.

(a)

Thermal ICM emission computed using the model by Zandanel et al. (2014) for the gas density.

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