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Table 1

APM 08279+5255 relevant time lags.

Process Obs-frame lag (days) Rest-frame laga (days) Method

Si IV reverberation (single) ZDCF
ICCF
JAVELIN
C IV reverberation (single) ZDCF
ICCF
JAVELIN
Si IV reverberation (joint) JAVELIN
C IV reverberation (joint) JAVELIN

BAL1 vs. BAL2 variability ZDCF
BAL vs. continuum variability ZDCF
NAL vs. BAL variability ZDCF
ICCF

Notes.

(a)

The rest-frame lag is computed with the systemic redshift z = 3.911.

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