Model simulation of jet precession in quasar PG 1302-102

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Table 2

Precessing nozzle model parameters for the inner trajectories and kinematics.

Knot	t₀	ϕ (rad)	PA (deg.)	θ (deg.)	Γ	(deg.)	t_0,obs	β_app
C1	1992.02	1.30	33.6	1.24	11.2	31.8 ± 0.9	1991.6 ± 0.3	4.8 ± 0.3
C2	1994.79	4.67	29.8	1.78	10.6	30.6 ± 2.7	1994.2 ± 0.1	4.3 ± 0.3
C3	2000.04	4.78 + 2π	30.7	1.78	9.6	30.8 ± 1.3	2000.5 ± 0.2	5.3 ± 0.2
C4	2004.37	3.78 + 4π	22.6	1.68	10.0	22.9 ± 3.3	2005.0 ± 0.2	7.2 ± 0.7
C5	2004.69	4.17 + 4π	25.5	1.74	8.4	26.8 ± 2.6	2005.1 ± 0.7	4.2 ± 0.8
C6	2007.45	1.24 + 6π	34.3	1.24	8.6	33.4 ± 3.3	2007.3 ± 0.3	3.0 ± 0.4

Notes. Columns are: model ejection times t₀, model precession phase ϕ (rad), model initial position angle PA (deg.), model initial viewing angle θ (deg.) and model initial Lorentz factor Γ. Observed parameters: inner jet position angle (deg.), ejection epoch t_0,obs and apparent velocity β_app.

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