The Chamaeleon II low-mass star-forming region: radial velocities, elemental abundances, and accretion properties

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Volume 547 (November 2012)

A&A, 547 (2012) A104

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Table 7

Parameters taken from the literature.

	Sp.T.^a	T _eff ^a	⟨M_⋆⟩^a	log L_⋆^a	R _⋆ ^a	⟨log g⟩^a	R _in ^a	⟨Age⟩^a	Class^b
		(K)	(M_⊙)	(L_⊙)	(R_⊙)	(dex)	(AU)	(Myr)

IRAS 12496−7650/DK Cha	F0	7200	2.00	1.27	2.77	3.9	1.79	4.75	II
Sz 46N	M1	3705	0.53	−0.48	1.39	3.9	0.13	3.07	II
Sz 47	...	...	...	...	...	...	0.2^∗	...	III
IRAS 12535−7623/CHIIXR 2	M0	3850	0.67	0.14	2.71	3.4	0.49	0.80	II
WFI J12585611−7630105	M5	3025	0.12	−1.03	1.13	3.4	...	1.33	III
C41	M5.5	3057	0.10	−1.95	0.37	4.3	0.98	13.37	Flat
Iso-Cha II 29	M0	3850	0.65	−0.19	1.85	3.7	70.86	2.77	III
Sz 48SW/CHIIXR 7	M1	3705	0.57	−0.58	1.25	4.0	2.06	4.70	II
Sz 50/Iso-Cha II 52/CHIIXR 8	M3	3415	0.35	0.06	3.10	3.0	0.07	0.37	II
WFI J13005531−7708295	M2.5	3687	0.53	−0.45	1.46	3.8	0.2^∗	2.83	III
RX J1301.0−7654a	K5	4350	0.70	0.38	2.67	3.4	0.2^∗	0.60	III
IRAS F12571−7657/Iso-Cha II 54	...	...	...	...	...	...	0.09	...	II
Sz 51	K8.5	3955	0.73	−0.36	1.37	4.0	0.20	4.67	II
CM Cha/IRAS 12584−7621	K7	4060	0.85	−0.14	1.78	3.9	0.78	3.67	II
C50	M5	3125	0.16	−1.19	0.89	3.8	0.08	2.73	II
RX J1303.1−7706	M0	3850	0.73	0.10	2.61	3.5	0.2^∗	1.07	III
C51	M4.5	3197	0.19	−0.53	1.77	3.2	0.2^∗	0.63	III
Hn 23	K5	4350	1.00	−0.06	1.60	4.0	0.18	3.57	II
Sz 52	M2.5	3487	0.35	−0.75	1.15	3.8	0.35	2.83	II
Hn 24	M0	3850	0.65	0.02	2.37	3.5	0.06	1.03	II
Hn 25	M2.5	3487	0.37	−0.48	1.56	3.6	0.19	1.60	II
Sz 53	M1	3705	0.55	−0.49	1.39	3.9	0.03	3.23	II
Sz 54	K5	4350	0.97	0.29	2.42	3.6	0.09	1.37	II
SSTc2d J130521.7−773810	...	...	...	...	...	...	0.65	...	Flat
Sz 55	M2	3560	0.42	−0.90	0.91	4.1	0.08	7.50	II
Sz 56	M4	3270	0.23	−0.47	1.78	3.3	0.43	0.80	II
Sz 57/C60	M5	3125	0.15	−0.39	2.21	2.9	0.05	0.60	II
Sz 58/IRAS 13030−7707/C61	K5	4350	0.97	−0.16	1.43	4.1	1.75	6.93	II
Sz 59	K7	4060	0.82	−0.05	1.96	3.8	0.37	2.20	II
C62	M4.5	3197	0.18	−1.05	0.97	3.7	0.02	1.83	II
Sz 60W	M1	3705	0.57	−0.54	1.32	4.0	0.07	3.57	III^‡
Hn 26	M2	3560	0.44	−0.59	1.30	3.8	0.23	3.00	II
Sz 61/BM Cha	K5	4350	1.00	0.07	1.87	3.8	0.66	2.67	II
C66	M4.5	3197	0.17	−1.30	0.73	3.9	0.01	6.50	II
IRAS F13052−7653NW/CHIIXR 60	M0.5	3777	0.62	−0.70	1.03	4.2	0.11	7.77	II
IRAS F13052−7653N/CHIIXR 60	M1.5	3632	0.47	−0.47	1.49	3.8	3.54	2.70	II
Sz 62	M2.5	3487	0.37	−0.48	1.56	3.6	0.05	1.60	II
Sz 63	M3	3415	0.32	−0.64	1.38	3.7	3.02	1.50	II
2MASS J13125238−7739182	M4.5	3197	0.19	−0.81	1.28	3.5	0.03	1.43	III
Sz 64	M5	3125	0.16	−1.04	1.04	3.6	0.18	1.67	II

Notes.

Spectral types, effective temperatures, luminosities, and radii are from Spezzi et al. (2008). Masses and ages are the average of three values reported in Spezzi et al. (2008) and derived using three different sets of evolutionary models, with mean standard deviations of ~0.15 M_⊙ and ~1.8 Myr, respectively. Mean surface gravities were computed through the relation: ⟨log g⟩ = 4.4377 + ⟨log M_⋆⟩ + 4log T_eff/5777 − log L_⋆. R_in was adopted from Alcalá et al. (2008).

Lada Class as derived in Alcalá et al. (2008).

^‡

In Alcalá et al. (2008), it appears as Class III, but it is a Class II object.

^∗

R_in = 5R_⋆ (see Sect. 3.4).

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