Gravity’s role in taming the Tayler instability in red giant cores

Home

All issues

Volume 702 (October 2025)

A&A, 702 (2025) A44

Full HTML

Open Access

Table 1.

Input parameters and output diagnostics of the numerical simulation runs (see main text for definitions).

Name	δ₀	Lu₀	Pr ⋅ 10²	t₁ ω_A0	${\bar{δ}}_{1}$ $\overline{\delta}_1$	${\bar{Lu}}_{1}$ $\overline{\mathrm{Lu}}_1$	$σ / {\bar{ω}}_{A 1}$ $\sigma/\overline{\omega}_{\mathrm{A}1}$
TU0⁽¹⁾	0	917	–	26.6	0	677	1.09
TU1	0	611	–	50.6	0	406	1.09
TU2	0	367	–	31.5	0	242	1.06
TU3	0	244	–	51.4	0	122	0.90
TU4	0	122	–	61.6	0	30	0.28
TU5	0	61	–	40.9	0	10	Stable
TU6	0	31	–	26.1	0	3	Stable
TS1⁽¹⁾	8	917	1	24.3	3.5	681	0.94
TS2⁽¹⁾	63	917	1	24.2	27	682	0.77
TS3⁽¹⁾	126	917	1	26.0	54	680	0.60
TS4⁽¹⁾	209	917	1	25.2	90	681	0.43
TS5⁽¹⁾	300	917	1	26.9	130	678	0.28
TS6^(1, 2)	419	917	1	24.5	180	682	0.16
TS7⁽¹⁾	628	917	1	27.7	272	678	0.07
TS8⁽¹⁾	900	917	1	27.3	321	678	0.04
TS9⁽²⁾	419	458	2	11.6	180	342	Stable
TS10⁽²⁾	419	1833	0.5	46.0	180	1367	0.47
TS11⁽²⁾	419	3667	0.25	91.2	180	2735	0.68
TS12⁽²⁾	419	7333	0.125	173.2	180	5481	0.85
TS13	628	458	2	13.8	272	339	Stable
TS14	739	306	3	9.3	321	226	Stable
TS15	739	397	2.31	12.1	321	293	Stable
TS16	739	611	1.5	18.3	321	452	Stable
TS17	63	57	16	1.7	27	42	Stable
TS18	63	458	2	12.7	27	340	0.55

Notes. Superscripts ⁽¹⁾ and ⁽²⁾ in the run names indicate a run pertaining to the simulation subsets 1 and 2, respectively (see Fig. 9). The time at which the nonaxisymmetric perturbations are introduced is t₁. The final column reports the growth rate of the m = 1 mode, with “Stable” indicating decaying perturbations. All runs have a magnetic Prandtl number of Pm = 1. For all stratified runs, the ratio of the thermal diffusion rate to the mean Alfvén frequency at the perturbation time is ${\bar{ϵ}}_{1} = 0.15$ $\overline{\epsilon}_1 = 0.15$ .

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.