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 6

Line equivalent widths and stellar accretion properties.

ID name	E W _Hα	log F^Hα		E W _Hβ	log F^Hβ		E W _He5876	log F^He5876		E W _He6678	log F^He6678		E W _He7065	log L^He7065	⟨log Ṁ_acc⟩
	(Å)	(erg s^-1 cm^-2)	(M_⊙ yr^-1 )	(Å)	(erg s^-1 cm^-2)	(M_⊙ yr^-1)	(Å)	(erg s^-1 cm^-2)	(M_⊙ yr^-1)	(Å)	(erg s^-1 cm^-2)	(M_⊙ yr^-1)	(Å)	(L_⊙)	(M_⊙ yr^-1)

IRAS 12496−7650/DK Cha	78.5	9.1	−6.3							0.65	7.0	−6.1			−6.1
	91.5	9.2	−6.2							1.07	7.2	−5.8
Sz 46N	10.5^•	6.7	−9.7	4.6^•	6.1	−9.8	0.50	5.2	−9.6	0.06	4.2	−10.5			−9.5
	15.6^•	6.8	−9.5	8.5^•	6.4	−9.5	0.65	5.3	−9.4	0.07	4.3	−10.4
	17.4^•	6.9	−9.4	5.9^•	6.2	−9.7	0.69	5.3	−9.4
Sz 47	32.5														...
	32.5
	32.3
IRAS 12535−7623/CHIIXR 2	2.2^•	6.0	−9.6	0.8^•	5.6	−9.6									−9.8
	1.5^•	5.9	−9.8	0.6^•	5.5	−9.7
	1.3^•	5.8	−9.8	0.3^•	5.2	−10.1
WFI J12585611−7630105	29.2	6.3	−9.7							0.35	4.2	−10.1			−9.9
	31.2	6.3	−9.7							0.55	4.4	−9.8
	31.5	6.3	−9.7							0.52	4.4	−9.9
C41	46.7	6.8	−10.8							0.95	4.9	−10.9	0.18	−7.3	−11.0
Iso-Cha II 29	0.9	5.6	−10.6												−10.6
	1.0	5.7	−10.5
Sz 48SW/CHIIXR 7	9.9^•	6.6	−9.9												−9.9
	14.7^•	6.8	−9.7
	8.1^•	6.6	−10.0
Sz 50/Iso-Cha II 52/CHIIXR 8	33.8^•	6.8	−8.1	9.7^•	5.9	−8.6	0.43	4.6	−8.7	0.09	4.1	−9.1			−8.4
	35.4^•	6.8	−8.1	11.8^•	6.0	−8.5	0.46	4.7	−8.7	0.08	4.0	−9.2
	30.4^•	6.7	−8.1	8.5^•	5.9	−8.6	0.32	4.5	−8.9	0.07	4.0	−9.2
WFI J13005531−7708295	2.1	6.0	−10.4												−10.4
RX J1301.0−7654a	3.1	6.8	−8.6	1.4	6.5	−8.4	0.16	5.6	−7.9						−8.3
IRAS F12571−7657/Iso-Cha II 54	16.0														...
Sz 51	132.5^•	8.1	−8.1	39.0^•	7.5	−8.3	2.92	6.4	−8.0	1.11	6.0	−8.3			−8.3
	110.0^•	8.0	−8.2	26.0^•	7.3	−8.5	2.29	6.3	−8.1	0.91	5.9	−8.4
CM Cha/IRAS 12584−7621	27.6	7.4	−8.6							0.72	5.8	−8.2	0.50	−4.6	−8.4
C50	37.5	6.6	−9.8							1.34	5.1	−9.5	0.39	−6.2	−9.9
	38.3	6.7	−9.8							0.78	4.8	−9.9	0.48	−6.1
RX J1303.1−7706	2.6	6.1	−9.5												−9.5
	2.7	6.1	−9.5
	2.6	6.1	−9.5
C51	9.5	6.0	−9.6												−9.7
	6.3	5.8	−9.8
Hn 23	11.9	7.4	−8.9	1.5	6.5	−9.5	0.26	5.7	−8.8	0.08	5.2	−9.2			−9.0
Sz 52	49.4	7.1	−9.2							0.70	5.1	−9.4	0.45	−5.6	−9.4
	49.9	7.1	−9.2							0.62	5.1	−9.4	0.43	−5.6
Hn 24	1.3^•	5.8	−10.0												−9.8
	1.2^•	5.8	−10.0
	1.9^•	6.0	−9.7
	1.1	5.7	−10.0	0.9	5.7	−9.6	0.12	4.6	−9.5
	1.4	5.8	−9.9	0.8	5.6	−9.7
Hn 25	22.5	6.6	−9.4							0.67	4.9	−9.2	0.54	−5.4	−9.3
Sz 53	145.0^•	7.8	−8.2							1.05	5.5	−8.7	1.37	−4.7	−8.6
	46.9^•	7.3	−8.8							0.70	5.3	−8.9	0.64	−5.1
	98.3^•	7.6	−8.4							0.91	5.4	−8.8	0.79	−5.0
Sz 54	23.8	7.7	−7.8												−8.2
	22.7	7.7	−7.8
	21.2	7.7	−7.9	1.9	6.6	−8.6
	22.4	7.7	−7.8	2.2	6.7	−8.5
	22.6	7.7	−7.8	1.2	6.4	−8.8
SSTc2d J130521.7−773810	26.1									0.21					...
Sz 55	101.1^•	7.6	−9.1							2.04	5.7	−9.1	1.39	−5.3	−9.1
	127.2^•	7.7	−9.0							1.93	5.7	−9.1	1.41	−5.2
	130.8^•	7.7	−9.0							1.97	5.7	−9.1	1.14	−5.3
Sz 56	11.1^•	6.1	−9.7	3.5^•	5.1	−10.3	1.90	5.0	−9.0	0.60	4.7	−9.1			−9.4
	14.3^•	6.2	−9.5	12.8^•	5.7	−9.7	3.70	5.3	−8.6	0.78	4.8	−8.9
	18.8^•	6.3	−9.4	4.8^•	5.2	−10.2	2.97	5.2	−8.8	0.88	4.8	−8.9
Sz 57/C60	23.0^•	6.4	−8.7							0.50	4.6	−8.5	0.12	−5.9	−8.7
	16.5^•	6.3	−8.8							0.39	4.5	−8.7	0.11	−5.9
	16.2^•	6.3	−8.9							0.41	4.5	−8.7	0.10	−6.0
Sz 58/IRAS 13030−7707/C61	18.2^•	7.6	−8.8										0.15	−5.0	−8.9
	14.8^•	7.5	−8.9							0.02	4.6	−10.2	0.21	−4.9
	10.5^•	7.3	−9.1							0.08	5.2	−9.4	0.20	−4.9
Sz 59	52.8^•	7.7	−8.1							0.44	5.6	−8.3	0.48	−4.5	−8.4
	35.3^•	7.5	−8.3							0.30	5.4	−8.5	0.30	−4.7
	39.1^•	7.6	−8.3							0.25	5.3	−8.6	0.30	−4.7
C62	37.2	6.6	−9.7							1.40	5.0	−9.4	0.45	−6.1	−9.6
	39.6	6.6	−9.7							1.85	5.2	−9.2	0.60	−6.0
Sz 60W	25.6^•	7.1	−9.3	7.5^•	6.4	−9.6	1.22	5.5	−9.1	0.38	5.0	−9.5			−9.3
	37.6^•	7.2	−9.1	11.8^•	6.5	−9.4	0.93	5.4	−9.3	0.31	4.9	−9.6
	36.8^•	7.2	−9.1	12.4^•	6.6	−9.4	1.06	5.5	−9.2	0.39	5.0	−9.5
Hn 26	6.6^•	6.3	−10.1							0.08	4.3	−10.5	0.09	−6.1	−10.1
	8.1^•	6.5	−10.0							0.18	4.6	−10.0	0.08	−6.1
	13.4^•	6.7	−9.7							0.11	4.4	−10.2	0.11	−6.0
Sz 61/BM Cha	81.1^•	8.2	−7.6							0.68	6.1	−7.7	0.80	−4.0	−7.7
	64.7^•	8.1	−7.8							0.60	6.1	−7.7	0.53	−4.2
C66	20.8	6.5	−10.2							0.67	4.9	−10.0	0.50	−6.2	−9.8
	29.1	6.7	−10.0							1.87	5.3	−9.4	0.40	−6.3
	35.9	6.8	−9.9							2.03	5.4	−9.3	0.99	−5.9
	25.7	6.6	−10.0							2.10	5.4	−9.3	0.90	−5.9
IRAS F13052−7653NW/CHIIXR 60	11.2	6.8	−10.0							0.73	5.4	−9.4	0.50	−5.3	−9.7
IRAS F13052−7653N/CHIIXR 60	2.2	5.9	−10.5	0.5	5.0	−11.0									−10.8
Sz 62	115.8	7.3	−8.4							0.74	4.9	−9.1	0.35	−5.6	−8.4
	150.8	7.4	−8.4							0.98	5.0	−9.0	0.88	−5.2
Sz 63	93.6	7.2	−8.9							0.41	4.6	−9.8	0.35	−5.8	−9.4
2MASS J13125238−7739182	5.8	5.8	−10.3							0.11	3.9	−10.5			−10.5
	7.0	5.9	−10.2							0.11	3.9	−10.5
Sz 64	132.1	7.1	−9.1							2.82	5.3	−9.0	0.79	−5.9	−9.1
	121.4	7.0	−9.1							3.00	5.3	−9.0	1.22	−5.7

Notes. The columns list: star name (Col. 1); equivalent width, observed flux, and mass accretion rate of the Hα, Hβ, He i λ5876 Å, and λ6678 Å lines (Cols. 2–13); He i λ7065 Å line equivalent width and observed line luminosity (Cols. 14–15); average Ṁ_acc as derived from the Hα, Hβ, He i λ5876 Å, and λ6678 Å lines (Col. 16).

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Variable line profile.

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