A multi-wavelength view of the multiple activity cycles of ϵ Eridani

Open Access

Table 8

Rotation periods as determined from the given time intervals.

No. spec	Min–max JD −2450000	Period S_MWO (day)	Period S_{Ca IRT a} (day)	Period S_{Ca IRT b} (day)	Period S_{Ca IRTc} (day)
53	6400–7900	5.2^(a)	(11.5)	10.6	(10.5)^(b)
39	7900–8600	(11.5)	23.5	(6.5)	(7.6)
126	8600–9000	12.5	12.2	12.3	12.5
42	9000–9300	(18.4)	11.8	11.6	11.6
41	9300–9700	11.8	11.8	11.6	12.6

Notes. ^(a) All values have errors of 0.1 or lower computed with a Monte Carlo simulation; ^(b) Values in brackets have an FAP > 5%.

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