Disentangling auroral-, cloud-, and magnetic spot-driven variability in three early L dwarfs with HST/WFC3

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Table 1

Fundamental parameters and measured variability parameters for each object in our sample.

Object	2M1721+33	Ref	2M0036+18	Ref	2M1906+40	Ref
Spectral type	L3	(K03)	L3.5	(R00)	L1	(G11)
Teff (K)	1802 ± 174	(S23)	1869 ± 64	(F15)	2201 ± 202	(S23)
Log (g)	5.15 ± 0.43	(S23)	5.21 ±0.17	(F15)	5.23 ± 0.39	(S23)
Literature period (h)	2.6 ± 0.1	(M15)	3.080 ± 0.001	(C16)	8.88364 ± 5 × 10⁻⁵	(G15)
GP period (h)	${4.93}_{- 0.22}^{+ 0.36}$ $Mathematical equation: $4.93^{+0.36}_{-0.22}$$	(TW)	${3.13}_{- 0.08}^{+ 0.09}$ $Mathematical equation: $3.13^{+0.09}_{-0.08}$$	(TW)	${19.4}_{- 10.5}^{+ 46.5}$ $Mathematical equation: $19.4^{+46.5}_{-10.5}$$	(TW)
Light curve amplitude (%)	${0.64}_{- 0.02}^{+ 0.03}$ $Mathematical equation: $0.64^{+0.03}_{-0.02}$$	(TW)	${1.41}_{- 0.02}^{+ 0.16}$ $Mathematical equation: $1.41^{+0.16}_{-0.02}$$	(TW)	${0.53}_{- 0.01}^{+ 0.03}$ $Mathematical equation: $0.53^{+0.03}_{-0.01}$$	(TW)
			${1.36}_{- 0.01}^{+ 0.11}$ $Mathematical equation: $1.36^{+0.11}_{-0.01}$$	(TW)

Notes. K03 = Cruz et al. (2003), R00 = Reid et al. (2000), G11 = Gizis et al. (2011), M15 = Metchev et al. (2015), F15 = Filippazzo et al. (2015), G15 = Gizis et al. (2015), C16 = Croll et al. (2016), S23 = Sanghi et al. (2023), TW = this work.

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