A view of the CIZA J2242.8+5301 galaxy cluster at very low radio frequencies

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Table 3.

Integrated spectral index estimates for the northern (RN) and southern (RS) radio relics in CIZA J2242.8+5301.

	Source

	RN	RS	Ref.
$α_{0.153}^{2.7}$ $\alpha_{0.153}^{2.7}$	−1.06 ± 0.04	−1.29 ± 0.04	Stroe et al. (2013)
$α_{0.145}^{2.3}$ $\alpha_{0.145}^{2.3}$	−1.11 ± 0.04	−1.41 ± 0.05	Hoang et al. (2017)
$α_{0.145}^{18.6}$ $\alpha_{0.145}^{18.6}$	−1.12 ± 0.03	–	Loi et al. (2020)
$α_{1.5}^{3}$ $\alpha_{1.5}^{3}$	−1.19 ± 0.05	−1.12 ± 0.07	Di Gennaro et al. (2018)
$α_{0.045}^{2.3}$ $\alpha_{0.045}^{2.3}$	−1.09 ± 0.03	−1.34 ± 0.04	This work

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