Trigonometric parallaxes of young field L dwarfs | Astronomy & Astrophysics (A&A)

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Table 1

List of targets and infrared photometry.

Object	SpT^a	J^b	K_s^b	W1^c	W2^c	W3^c	[3.6] ^d	[4.5]^d	[5.8]^d	[8.0]^d
		(mag)	(mag)	(mag)	(mag)	(mag)	(mag)	(mag)	(mag)	(mag)

2MASS J00332386−1521309	L4β	15.29±0.06	13.41±0.04	12.80±0.03	12.48±0.03	11.89±0.25	12.54±0.02	12.48±0.02	12.21±0.03	12.04±0.03
2MASS J00452143+1634446^e	L2β	13.06±0.02	11.37±0.02	10.77±0.02	10.39±0.02	9.74±0.04
2MASS J02411151−0326587	L0γ	15.80±0.06	14.04±0.05	13.64±0.03	13.26±0.03	12.77±0.42	13.39±0.02	13.24±0.02	13.04±0.03	12.77±0.03
2MASS J03552337+1133437	L5γ	14.05±0.02	11.53±0.02	10.53±0.02	9.94±0.02	9.29±0.04
2MASS J05012406−0010452^f	L4γ	14.98±0.04	12.96±0.04	12.05±0.02	11.52±0.02	10.95±0.11	11.77±0.02	11.52±0.02	11.22±0.03	11.03±0.03
G 196–3B^g	L3β	14.83±0.05	12.78±0.03				11.66±0.02	11.47±0.04	11.10±0.06	10.93±0.04
2MASS J10224821+5825453	L1β	13.50±0.03	12.16±0.03	11.76±0.02	11.50±0.02	11.20±0.11
2MASS J15525906+2948485	L0β	13.48±0.03	12.02±0.03	11.54±0.02	11.21±0.02	10.66±0.05
2MASS J17260007+1538190	L3β	15.67±0.07	13.66±0.05	13.07±0.03	12.69±0.03	11.56±0.16	12.76±0.02	12.64±0.02	12.41±0.03	12.20±0.03
2MASS J22081363+2921215	L3γ	15.80±0.09	14.15±0.07	13.35±0.03	12.89±0.03		13.08±0.02	12.89±0.02	12.62±0.03	12.33±0.03

Notes.

^(a)

Based on optical spectra from Cruz et al. (2009). As also explained in Kirkpatrick (2005), the β and γ appended to the L subtypes indicate intermediate- and very low-gravity spectra, respectively.

^(b)

2MASS photometry (Skrutskie et al. 2006).

^(c)

WISE photometry.

^(d)

Spitzer photometry.

^(e)

W4 = 8.42±0.26 mag. Other sources are not detected in the W4 filter.

^(f)

Spitzer [24] = 10.78±0.15 mag.

^(g)

Spitzer [24] = 10.55±0.10 mag.

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