Tighter constraints on the atmosphere of GJ 436 b from combined high-resolution CARMENES and CRIRES+ observations

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Table 1

Analysed spectroscopic observations of GJ436.

UT date	exp	Texp (s)	Airmass	Rel. hum (%)	Mean S/N	Discarded orders
CARMENES
2017 Feb. 02	38	280	1.05	69	67	63, 62, 57, 56, 54-51, 46, 45, 44, 43, 42, 40, 36
2017 Feb. 17	36	272	1.42	70	82	63, 57, 55, 54, 53, 51, 50, 45, 44, 43
2018 Jan. 24	84	278	1.22	43	78	63, 57, 55, 54, 53, 51, 50, 45, 44, 43
2018 Feb. 14	82	278	1.22	86	61	55, 54, 47, 46, 45, 44, 42
2018 Apr. 16	31	278	1.10	32	90	63, 57, 54, 53, 52, 45, 44, 43, 42, 41, 36
CRIRES⁺
2023 Jan 23	90	60	1.66	44.39	204	None

Notes. PI of the nights of 2017 Feb. 02, 2017 Feb. 17, and 2018 Apr. 16 was L. Nortmann, while the PI for the night of 2023 Jan. 23 was R. Landman. The nights of 2018 Jan. 24 and 2018 Feb. 14 were part of CARMENES Guaranteed Time Observations.

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