The Fermi-LAT view of the changing-look blazar OQ 334

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Table 4.

Accretion disc luminosity L_disc and accretion rate ṁ over eight epochs in the CL phenomenon.

Epoch	State	L_disc	ṁ
		10⁴⁵
		erg s⁻¹
F₁	FSRQ	19.756 ± 2.080	0.395 ± 0.042
T₁	FSRQ → BL Lac	22.528 ± 0.693	0.450 ± 0.014
B₁	BL Lac	1.560 ± 0.035	0.031 ± 0.001
T₂	BL Lac → FSRQ	6.932 ± 0.139	0.139 ± 0.003
F₂	FSRQ	7.798 ± 0.693	0.156 ± 0.014
T₃	FSRQ → BL Lac	13.864 ± 1.421	0.277 ± 0.028
B₂	BL Lac	1.837 ± 0.069	0.037 ± 0.001
F₁ − B₂	CL epoch	8.318 ± 0.693	0.166 ± 0.014

Notes. The uncertainty of L_disc and ṁ is determined by the error transfer formula (Feigelson & Babu 2012), $σ (y) = \sqrt{(Σ_{i = 1}^{m} {(\frac{\partial y}{\partial x_{i}})}^{2}) {(σ (x_{i}))}^{2} + 2 Σ_{i, j = 1, i \neq j}^{m} \frac{\partial y}{\partial x_{i}} \frac{\partial y}{\partial x_{j}} ρ_{ij} σ (x_{i}) σ (x_{j})}$ $\sigma(\mathit{y})=\sqrt{(\Sigma_{i=1}^{m}(\frac{\partial \mathit{y}}{\partial x_{i}})^2)(\sigma(x_{i}))^2 + 2\Sigma_{i,j=1,i\neq j}^{m}\frac{\partial \mathit{y}}{\partial x_{i}}\frac{\partial y}{\partial x_{j}}\rho_{ij}\sigma(x_{i})\sigma(x_{j})}$ , where ρ_ij represent the correlation coefficient.

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