Multi-wavelength properties of three new radio-powerful z ∼ 5.6 quasi-stellar objects discovered from RACS

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Table 7.

Multi-wavelength spectral indices and luminosities, radio loudness, and ${\tilde{α}}_{ox}$ $\tilde{\alpha}_{\mathrm{ox}}$ parameter of the three sources discussed in this work.

	PSO J0202−17	DES J0209−56	PSO J1011−01
α_r	0.65 ± 0.02	0.27 ± 0.02	0.40 ± 0.03
$α_{o}^{ν}$ $\alpha_{\mathrm{o}}^{\nu}$	0.52 ± 0.01	0.30 ± 0.04	0.27 ± 0.03
L_5GHz [erg s⁻¹ Hz⁻¹]	1.1 ± 0.1 × 10³⁴	9.8 ± 1.0 × 10³³	4.6 ± 0.7×10³³
L_2500Å [erg s⁻¹ Hz⁻¹]	6.1 ± 0.3 × 10³¹	1.1 ± 0.1 × 10³¹	8.6 ± 1.4×10³⁰
L_4400Å [erg s⁻¹ Hz⁻¹]	7.7 ± 0.3 × 10³¹	1.2 ± 0.1 × 10³¹	1.2 ± 0.2×10³¹
L_10keV [erg s⁻¹ Hz⁻¹]	1.6 ± 0.1 × 10²⁷	1.1 ± 0.1 × 10²⁷	< 3.3 × 10²⁶
R	150 ± 20	830 ± 90	380 ± 70
${\tilde{α}}_{ox}$ $\tilde{\alpha}_{\mathrm{ox}}$	1.39 ± 0.02	1.22 ± 0.03	> 1.33

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