Photometric identification of the periods of the first candidate extragalactic magnetic massive stars

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Table 2

Properties of the detected periods, from the Fourier method.

ID	T₀ −2 450 000	Period (d)	Amplitude (mag)

SMC159-2	3598.706 ± 0.049	14.914 ± 0.004	0.00719 ± 0.00015
2dFS 936^†	3993.3 ± 1.7	1370 ± 30	0.01504 ± 0.00011
LMC164-2	4027.338 ± 0.015	7.9606 ± 0.0010	0.00926 ± 0.00011
BI 57^*	5302.2 ± 1.2	400.0 ± 3.5	0.00550 ± 0.00010

Notes. T₀ (hence φ = 0) corresponds to minimum brightness;

^(*)

not strictly periodic (see text);

^(†)

there are additional periodicities in 2dFS 936 (see text).

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