Clouds with a silicate lining: Using JWST spectra to probe atmospheric diversity in young AB Dor L dwarfs

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Volume 709 (May 2026)

A&A, 709 (2026) A56

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Table 2

Variability and inclination measurements for objects in our sample.

Object	Period (h)	3.6 Amplitude (%)	Reference	v sin i (km/s)	i (°)	Reference
W0047+68	16.4 ± 0.2	1.07 ± 0.04	2	9.8 ± 0.3	$85_{- 9}^{+ 5}$ $Mathematical equation: $\[85_{-9}^{+5}\]$$	2
2M0355+11	9.53 ± 0.19	0.26 ± 0.02	1	12.31 ± 0.15	50 ± 2	3, 4
2M0642+41	10.11 ± 0.06	2.16 ± 0.16	1	...	...
W1741–46	${15.00}_{- 0.57}^{+ 0.71}$ $Mathematical equation: $\[15.00_{-0.57}^{+0.71}\]$$	0.35 ± 0.03	1	${3.88}_{- 0.40}^{+ 0.46}$ $Mathematical equation: $\[3.88_{-0.40}^{+0.46}\]$$	${23.6}_{- 3.6}^{+ 3.4}$ $Mathematical equation: $\[23.6_{-3.6}^{+3.4}\]$$	TW
2M2206–42	9–17*	<0.33	1	${12.49}_{- 0.28}^{+ 0.40}$ $Mathematical equation: $\[12.49_{-0.28}^{+0.40}\]$$	48.6–90*	TW
2M2244+20	11.0 ± 2.0	0.8 ± 0.2	2	${14.3}_{- 1.5}^{+ 1.3}$ $Mathematical equation: $\[14.3_{-1.5}^{+1.3}\]$$	$76_{- 20}^{+ 14}$ $Mathematical equation: $\[76_{-20}^{+14}\]$$	2

Notes. *: 2M2206–42 has no detected variability, so these estimates are based on the range of expected rotation periods for AB Dor members, 9–17 h (Vos et al. 2022) and its measured v sin i. TW: This work; (1) Vos et al. (2022); (2) Vos et al. (2018); (3) Blake et al. (2010); (4) Suárez et al. (2023).

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