Magnetohydrodynamic simulations of A-type stars: Long-term evolution of core dynamo cycles

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Volume 691 (November 2024)

A&A, 691 (2024) A326

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Table 3.

Kinetic and magnetic energies.

Run	E_kin [10³³J]	E_kin^DR/E_kin	E_kin^MC/E_kin	E_mag [10³³J]	E_mag/E_kin	E_mag^tor/E_mag	E_mag^pol/E_mag
Full star
MHDr1	296.78	0.631	0.017	–	–	–	–
MHDr2	74.50	0.398	0.017	24.00	0.322	0.294	0.061
MHDr2*	74.70	0.391	0.018	24.71	0.331	0.277	0.059
MHDr3	42.57	0.319	0.011	23.99	0.563	0.229	0.079
MHDr3*	43.81	0.315	0.010	30.52	0.697	0.264	0.074
MHDr4	34.86	0.323	0.008	23.79	0.682	0.300	0.086
MHDr4*	35.84	0.317	0.006	26.58	0.742	0.266	0.069

Core

MHDr1	32.64	0.576	0.025	–	–	–	–
MHDr2	8.88	0.346	0.026	1.74	0.196	0.140	0.097
MHDr2*	8.95	0.341	0.027	1.56	0.174	0.132	0.098
MHDr3	5.10	0.286	0.016	2.06	0.403	0.151	0.112
MHDr3*	4.91	0.247	0.016	1.86	0.379	0.139	0.102
MHDr4	4.19	0.309	0.011	1.74	0.415	0.189	0.118
MHDr4*	3.96	0.259	0.009	1.58	0.399	0.172	0.108

zMHDr1	27.47	0.537	0.032	–	–	–	–
zMHDr2	9.00	0.371	0.035	1.20	0.133	0.133	0.091
zMHDr3	4.61	0.275	0.021	1.40	0.304	0.152	0.102
zMHDr4	3.83	0.331	0.014	1.06	0.277	0.186	0.104

Notes. The energies are averaged over time in the full star and in the convective core. The total kinetic and magnetic energies are given in units of 10³³ J.

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