The low-mass dispersed population around the Lupus clouds

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Table 2

Parameters of nongiant cool stars.

Object	T_eff	Sp.	log g	A_V	log L^a	M^a	Age^a	EW(Hα)	n
	(K)	type	(cm s^-2)	(mag)	(L_⊙)	(M_⊙)	(Myr)	(Å)

Lupus 1
J153701.1-332255	3050	M5.5	4.5^b					12.4	−
J153703.1-331927	3100	M5	5.0^b					4.4	−
J153735.0-340240	3250	M4	4.5^b					0.0	−
J153837.4-342202	3100	M5	4.0	1.2	−1.74	0.15	8.0	7.8	−
J153921.8-340020	3050	M5.5	4.0	3.4	−1.68	0.10	7.1	9.5	−
J154018.5-342614A	3200	M4.5	4.5^b					7.8	−2.8
J154018.5-342614B	3250	M4	4.5^b					4.4
J154433.9-335254	3050	M5.5	4.0	1.7	−1.55	0.11	4.5	32.1	−1.8
Lupus 3
J160528.6-384621	3000	M6	4.0	1.0	−1.27	0.09	2.0	22.3	−
J160755.2-390603	2950	M6.5	3.5	2.3	−1.32	0.09	1.0	23.0	−2.6
J160804.8-390449	2900	M7	3.5	2.7	−1.58	0.06	1.2	16.4	−2.1
J160833.0-385222	2800	M7.5	3.5	0.8	−1.42	0.06	1.0	20.3	−2.7
J160835.5-390035	2950	M6.5	3.5	0.5	−0.92	0.10	1.3	12.8	−2.5
J160836.2-392302	4400	K5	4.0	6.3	0.75		<1	12.4	−1.3
J160839.8-392922	3100	M5	3.5	1.0	−0.83	0.20	1.0	8.9	−
J160855.8-382633	3050	M5.5	4.0	1.1	−1.32	0.13	3.6	10.1	−
J160904.6-392112	3100	M5	3.5	1.6	−0.32		<1	6.4	−2.8
J160915.7-385139	3100	M5	3.5	0.0	−1.09	0.13	1.8	4.1	−3.1
J160920.8-384510	3000	M6	5.0^b					6.2	−
J160922.8-385550A	3100	M5	3.5	1.0	−0.46		<1	9.1	−2.8
J160922.8-385550B	3250	M4	3.5					5.2	−2.8
J160928.0-384853	3050	M5.5	3.5	1.6	−0.86	0.20	1.0	9.8	−
J161013.9-375958	3000	M6	3.5	0.8	−1.10	0.11	1.0	49.3	−2.8
J161030.6-383151	3000	M6	4.0	0.5	−1.56	0.08	3.6	9.1	−2.8
J161033.2-383023	3200	M4.5	3.5	1.5	−0.31		<1	7.7	−2.7
J161041.9-382304	3100	M5	3.5	0.1	−0.61	0.20	1.0	10.5	−2.9
J161059.0-391451	3100	M5	4.0	0.5	−1.07	0.20	2.0	7.6	−2.7
J161138.1-384135	3500	M2.5	5.0^b					4.1	−2.9
J161207.6-381324	3200	M4.5	3.5	1.1	−0.48	0.30	1.0	3.6	−2.8
J161210.4-390904	2950	M6.5	4.0	1.3	−1.72	0.06	3.2	14.0	−2.5^c
J161225.6-381742	3000	M6	3.5	0.1	−1.59	0.11	4.0	21.3	−2.5^c
Lupus 4
J160019.2-415635	3050	M5.5	5.0^b					5.5	−2.7
J160359.6-421356	3000	M6	3.5	0.9	−1.97	0.08	7.2	13.7	−
J160348.1-414044	2950	M6.5	3.5	0.1	−1.54	0.07	1.0	16.2	−

Notes.

^(a)

Quantities estimated assuming a distance of 150 pc (Lupus 1 and 4) or 200 pc (Lupus 3). These estimates are invalid if the objects are in the foreground, as suspected for those with log g > 4.

^(b)

Possibly non-member on the basis of its high log g values.

^(c)

Spectral index computed between 2.2 μm and 8 μm.

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