Accretion disc reverberation mapping in a high-redshift quasar

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Volume 700 (August 2025)

A&A, 700 (2025) L8

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Table B.1.

Time-delay measurements in observer-frame days using ICCF, ZDCF, JAVELIN, VN, and the GPCC model.

Filter	λ_obs [Å]	Mean Flux [mJy]	F_var	ICCF	JAVELIN	ZDCF	VN	GPCC
860	4858	0.22	0.018	$0 . 00_{- 0.49}^{+ 0.49}$ $0.00_{-0.49}^{+0.49}$	$0 . 02_{- 0.17}^{+ 0.19}$ $0.02_{-0.17}^{+0.19}$	$0 . 00_{- 0.56}^{+ 0.57}$ $0.00_{-0.56}^{+0.57}$	$0 . 00_{- 0.40}^{+ 0.40}$ $0.00_{-0.40}^{+0.40}$	0.00 ± 0.30
875	5315	0.13	0.012	$2 . 40_{- 0.97}^{+ 0.98}$ $2.40_{-0.97}^{+0.98}$	$2 . 70_{- 1.46}^{+ 1.87}$ $2.70_{-1.46}^{+1.87}$	$2 . 10_{- 1.84}^{+ 1.23}$ $2.10_{-1.84}^{+1.23}$	$2 . 51_{- 1.48}^{+ 0.52}$ $2.51_{-1.48}^{+0.52}$	2.59 ± 0.87
864	6043	0.19	0.018	$4 . 50_{- 1.10}^{+ 1.11}$ $4.50_{-1.10}^{+1.11}$	$5 . 20_{- 1.74}^{+ 1.57}$ $5.20_{-1.74}^{+1.57}$	$4 . 89_{- 1.97}^{+ 1.99}$ $4.89_{-1.97}^{+1.99}$	$5 . 60_{- 2.40}^{+ 1.60}$ $5.60_{-2.40}^{+1.60}$	4.75 ± 1.08
849	7705	0.12	0.015	$10 . 80_{- 4.99}^{+ 2.02}$ $10.80_{-4.99}^{+2.02}$	$11 . 60_{- 2.88}^{+ 0.95}$ $11.60_{-2.88}^{+0.95}$	$11 . 20_{- 4.26}^{+ 3.52}$ $11.20_{-4.26}^{+3.52}$	$10 . 60_{- 4.20}^{+ 2.40}$ $10.60_{-4.20}^{+2.40}$	11.51 ± 2.67

Notes. GPCC delays are reported as the mode of the posterior distribution, with uncertainties corresponding to the 68% highest posterior density (HPD) interval. The table also includes the mean flux density (in mJy) of the light curves and the fractional variability F_var following Rodríguez-Pascual et al. (1997).

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