Pollux: A weak dynamo-driven dipolar magnetic field and implications for its probable planet

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Table 2.

Observed periods on Pollux and parameters for a hosted planet.

Reference	Period	Error	Span	m₂ sin i	a
	(day)	(day)	(year)	(M_Jup)	(AU)
Hatzes et al. (2006)	589.64	0.81	25.1	2.3	1.64
Reffert et al. (2006)	589.7	3.5	3.5	2.7	1.69
Han et al. (2008)	596.6	2.26	4.5	2.47	1.66

ZDI	660	15	4.25
B_ℓ	635	40	4.25
RV	661	27	4.25

Notes. Numbers from the 3 first references are used in Sects. 3 and 6. The quantity m₂ sin i is given for a mass of Pollux of 1.7 M_⊙ as used in these 3 references. The ZDI work is described in Sect. 4. The B_ℓ and RV work is presented in Sect. 3.

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