Connecting photometric and spectroscopic granulation signals with CHEOPS and ESPRESSO

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Volume 670 (February 2023)

A&A, 670 (2023) A24

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Table 6

Summary of the data analyses.

Target	Instrument	Reference	σ_TOT	σ_w	F8	F8_HD	Detection ?
HD 67458	CHEOPS	Visit 1	114	79	67	48	Marginal
	CHEOPS	Visit 2	110	81	55	48	Marginal
	CHEOPS	Visit 3	125	93	58	48	Marginal
	TESS	Sector 7	101 – [91, 116]	97 – [88, 106]	73 – [54, 106]	<48	No
	TESS	Sector 8	98 – [93, 213]	93 – [86, 122]	72 – [59,80]	<48	No
	TESS	Sector 34	89–[81, 101]	85 – [79, 99]	61 – [51,76]	<48	No
	ESPRESSO	Night 1	2.6	2.1	2.0	–	No
	ESPRESSO	Night 2	2.0	1.6	1.2	–	No
	ESPRESSO	Night 3	1.1	0.95	0.8	–	No
HD 88595	CHEOPS	Visit 1	100	77	63	66	Yes
	CHEOPS	Visit 2	104	75	67	66	Yes
	CHEOPS	Visit 3	108	77	72	66	Yes
	CHEOPS	Visit 4	103	78	55	66	Yes
	TESS	Sector 9	199–[166, 258]	181 – [156, 223]	87 – [67,128]	<66	No
	TESS	Sector 35	190–[163, 293]	177–[159, 204]	98 – [70,149]	<66	No
	ESPRESSO	Night 1	2.54	1.37	2.07	–	Yes
	ESPRESSO	Night 2	2.26	1.49	2.25	–	Yes

Notes. Columns are: target name, instrument, reference of the observations, total dispersion of the time series (σ_TOT), estimated level of white noise^⋆ from the high frequency noise filtering (σ_w, see Sect. 4.3), estimated granulation amplitude from F8 (F8, see Sect. 4.1), and from predictions from HD simulations (F8_HD, see Sect. 6). Units are in ppm or ms⁻¹. The last column indicates if the granulation signal is detected (yes/no/marginal).

^⋆ We note that the analyses of TESS data are based on a large number of 8-h subseries, we then indicate the median values, and the min/max values under intervals.

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