Far beyond the Sun - III. The magnetic cycle of ι Horologii

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Table 2.

Best-fit parameters of the single-period sinusoidal models describing the evolution of the magnetic cycle in ι Hor.

Latitude Bin	${〈 B_{R} 〉}_{lon}$ $\left < B_\mathrm{{R}}\right > _\mathrm{{lon}}$	${〈 B_{A} 〉}_{lon}$ $\left < B_\mathrm{{A}}\right > _\mathrm{{lon}}$
[°]	$B_{R}^{0}$ $B^{0}_\mathrm{{R}}$ [G]	$P_{R}^{B}$ $P^\mathrm{{B}}_\mathrm{{R}}$ [rot]	$ϕ_{R}^{B}$ $\phi^\mathrm{{B}}_\mathrm{{R}}$	$B_{A}^{0}$ $B^{0}_\mathrm{{A}}$ [G]	$P_{A}^{B}$ $P^\mathrm{{B}}_\mathrm{{A}}$ [rot]	$ϕ_{A}^{B}$ $\phi^\mathrm{{B}}_\mathrm{{A}}$
[90 : 80]	7.59 ± 0.96	104.5 ± 2.6	0.513 ± 0.005	0.21 ± 0.10	109.2 ± 19.2	0.828 ± 0.459
[80 : 70]	6.90 ± 0.91	103.7 ± 2.8	0.511 ± 0.009	0.82 ± 0.20	107.0 ± 10.6	0.797 ± 0.255
[70 : 60]	5.28 ± 0.82	101.0 ± 3.5	0.506 ± 0.022	1.38 ± 0.33	106.7 ± 9.9	0.793 ± 0.087
[60 : 50]	3.39 ± 0.71	98.8 ± 5.3	0.515 ± 0.044	2.25 ± 0.45	99.3 ± 7.8	0.705 ± 0.081
[50 : 40]	1.62 ± 0.65	98.9 ± 10.5	0.563 ± 0.099	3.49 ± 0.61	94.4 ± 5.6	0.633 ± 0.060
[40 : 30]	1.17 ± 0.54	158.6 ± 36.8	0.083 ± 0.012	4.68 ± 0.84	93.2 ± 4.6	0.605 ± 0.050
[30 : 20]	1.59 ± 0.65	147.2 ± 24.8	0.591 ± 0.120	5.10 ± 1.04	93.0 ± 4.5	0.592 ± 0.048
[20 : 10]	1.58 ± 0.65	133.5 ± 20.3	0.574 ± 0.112	4.72 ± 1.06	92.7 ± 4.5	0.586 ± 0.048
[10 : 0]	1.34 ± 0.56	122.6 ± 18.7	0.557 ± 0.112	3.91 ± 0.91	92.8 ± 4.7	0.585 ± 0.049
[0 : −10]	0.90 ± 0.40	103.7 ± 13.9	0.515 ± 0.105	2.55 ± 0.58	93.3 ± 4.8	0.590 ± 0.050
[ − 10 : −20]	0.34 ± 0.30	100.0 ± 19.8	0.563 ± 0.192	1.29 ± 0.37	94.8 ± 6.6	0.606 ± 0.070
[ − 20 : −30]	0.09 ± 0.18	159.1 ± 30.0	0.607 ± 0.632	0.34 ± 0.18	106.5 ± 21.4	0.703 ± 0.227
[ − 30 : −40]	0.69 ± 0.13	154.5 ± 14.9	0.546 ± 0.045	0.30 ± 0.15	80.9 ± 7.7	0.020 ± 0.065
[ − 40 : −50]	0.46 ± 0.09	139.9 ± 13.0	0.496 ± 0.036	0.46 ± 0.12	87.0 ± 4.7	0.074 ± 0.052
[ − 50 : −60]	0.41 ± 0.09	137.9 ± 13.9	0.475 ± 0.041	0.42 ± 0.08	86.3 ± 4.4	0.076 ± 0.051

Notes. The parameters B⁰ (Amplitude), P^B (Period), ϕ^B (Normalized Phase) describe the temporal profiles of ${〈 B_{R} 〉}_{LON}$ $\left < B_\mathrm{{R}}\right > _\mathrm{{LON}}$ and ${〈 B_{A} 〉}_{LON}$ $\left < B_\mathrm{{A}}\right > _\mathrm{{LON}}$ extracted at the indicated 10° latitudinal bins. For all cases the phase of the fit has been adjusted so that the amplitude takes positive values.

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