Time-resolved absorption of six chemical species with MAROON-X points to a strong drag in the ultra-hot Jupiter TOI-1518 b

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Table 1

Overview of TOI-1518 b observations during the two transits from program IDs GN-2022B-Q-128 and GN-2023B-Q-127; PI: Parmentier.

Night	2022-08-13	2023-10-19
Phase	0.96–0.04	0.96–0.04
N_obs	40 (25 + 15)	41 (25 + 16)
Exp. time	260s (b), 220s (r)	220s (both arms)
Airmass	1.45–1.9	1.47–1.6
S/N	110–180	155–210
	(Avg = 150)	(Avg = 180)

Notes. N_obs is the total number of observed spectra with in-transit (25) and out-of-transit (15) observations.

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