Spectroscopic follow-up of L- and T-type proper-motion member candidates in the Pleiades

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Table 1

Observing log.

Object	J ^a	Instrument^b	Exposure	UT	Airmass	SpT/Z^c
	(mag)		(s)			(mag)

Calar 16	17.54	LIRIS/ZJ	14 × 600	2013 Oct 12	1.01	L2 ± 1
		LIRIS/HK	4 × 500	2014 Feb 21	1.07	L2 ± 1
Calar 18	18.18	LIRIS/ZJ	12 × 600	2013 Oct 12	1.39	L3 ± 1
Calar 19	18.49	LIRIS/ZJ	10 × 900	2013 Oct 13	1.04	L3 ± 1
Calar 20	18.63	LIRIS/ZJ	10 × 600	2013 Oct 11	1.02	L6 ± 1
		LIRIS/HK	12 × 500	2014 Feb 20	1.06	L6 ± 1
Calar 21	20.23	NIRSPEC/K	4 × 600	2013 Dec 13	1.02	L7 ± 1
		LIRIS/HK	16 × 500	2014 Feb 18	1.10	L7 ± 1
		ACAM/z	17 × 180	2014 Jan 15	1.05	22.91 ± 0.15
Calar 22	20.29	LIRIS/HK	18 × 500	2014 Feb 19	1.15	L/T
Calar 25	20.83	ACAM/z	42 × 120	2014 Feb 21	1.26	≥23.35^d

J0045+1634^e	13.06	LIRIS/ZJ	4 × 300	2013 Oct 10	1.19	L2^f
J0355+1133^e	14.05	LIRIS/HK	2 × 300	2014 Feb 18	1.07	L5^f
J0908+5032	14.55	ACAM/z	3 × 30	2014 Feb 21	1.09	L5/L9^f
J2224−0158	14.07	LIRIS/ZJ	2 × 400	2013 Oct 12	1.42	L4.5^f

Notes.

^(a)

UKIDSS photometric system for the Calar objects, 2MASS for the field dwarfs below the line.

^(b)

Filter (ACAM imaging) or grism (LIRIS spectroscopy).

^(c)

UKIDSS photometric system (Vega magnitudes).

^(d)

4-σ detection limit.

^(e)

Young field dwarf (Cruz et al. 2009; Zapatero Osorio et al. 2014b).

^(f)

Spectral type from Kirkpatrick et al. (2000) and Cruz et al. (2003, 2009).

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