A quarter century of spectroscopic monitoring of the nearby M dwarf Gl 514 - A super-Earth on an eccentric orbit moving in and out of the habitable zone

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Volume 666 (October 2022)

A&A, 666 (2022) A187

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Table 3

Peaks with the highest power observed in the GLS periodograms of the spectroscopic chromosperic activity indicators extracted from HIRES, HARPS, and CARMENES-VIS spectra (see Figs. 2, 3, and 4).

Activity diagnostic	Frequency (days⁻¹)	Period (days)	Note
HIRES
S-index	0.00136	734	FAP = 0.01%
	0.00159	629	FAP = 0.01%; alias of the main peak frequency
			(f_alias = 0.000229 day⁻¹, or P_alias = 4361 days)
	0.0325	30.7	FAP ~ 0.1%
	0.0673	14.9	FAP~ 1%
HARPS
CCFFWHM^(a)	0.00126	796	FAP=0.01%
	0.0304	32.9	FAP=0.01%
	0.00402	249	FAP=0.01%
	0.000705	1417	FAP=0.01%
	0.0332	30.1	FAP=0.01%
CaII H&K index	0.001022	978	FAP=0.01%
	0.03049	32.8	FAP=0.01%
	0.0333	30.0	FAP = 0.01%; 1-yr alias of the previous frequency
	0.00139	717	FAP ~ 0.1%
Hα index	0.002038	491.8	FAP = 0.01%
		1024	FAP = 0.01%; alias of the main peak frequency
			(f_alias = 0.00303 day⁻¹, or P_alias = 329.7 days)
		207.7	FAP = 0.1%; 1-yr alias of the main peak frequency
NaI index	0.00256	390.3	FAP = 0.01%
	0.0007	1427	FAP = 0.01%
	0.0303	33	FAP < 0.1%
CARMENES-VIS^(b)
Ca-IRT index	0.00157	636	FAP=0.01%
		34	FAP = 0.1%
NaD index	0.00165	606	1% < FAP < 10%
	0.0625	16	1% < FAP < 10%
dLW	0.00175	570	FAP = 0.01%
	0.0294	34	FAP = 1%
CRX	0.0024	410	FAP = 0.01%
	0.00565	177	likely related to the data sampling
	0.0164	61	1% < FAP < 10%

Notes. ^(a)The periodogram was calculated on the residuals after removing a long-term trend. ^(b)The peak frequencies are calculated from pre-whitened data, except for the CRX index.

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