Spectroscopic observations of ices around embedded young stellar objects in the Large Magellanic Cloud with AKARI

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Volume 514 (May 2010)

A&A, 514 (2010) A12

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Table 4:

Column density of ices and properties of YSOs.
Number	N(H₂O)	N(CO₂)	N(CO₂)/N(H₂O)	N(CO)	N(CO)/N(H₂O)	EW(Br $\alpha$ )	$L_{\rm tot}$
	[10¹⁷ cm^-2]	[10¹⁷ cm^-2]	[ $\%$ ]	[10¹⁷ cm^-2]	[ $\%$ ]	[ $\AA$ ]	[10³ $\times$ $L_{\odot}$ ]
ST1	22.5 $\pm$ 0.96	5.66 $\pm$ 0.64	25	3.62 $\pm$ 0.93	16	100 $\pm$ 7	53 $\pm$ 18
ST2	11.9 $\pm$ 1.0	3.64 $\pm$ 0.38	31	<0.5	<1	343 $\pm$ 12	182 $\pm$ 9
ST3	38.1 $\pm$ 3.9	10.6 $\pm$ 1.6	28	3.17 $\pm$ 0.92	8	21.3 $\pm$ 6.3	9.9 $\pm$ 1.0
ST4	19.6 $\pm$ 0.83	7.41 $\pm$ 0.79	38	2.71 $\pm$ 1.2	14	17.4 $\pm$ 5.1	4.0 $\pm$ 0.4
ST5	26.4 $\pm$ 1.2	10.1 $\pm$ 0.79	39	2.33 $\pm$ 0.82	9	119 $\pm$ 7	66 $\pm$ 12
ST6	45.6 $\pm$ 16^a	17.1 $\pm$ 3.0	37	<13	...	44.3 $\pm$ 21	6.6 $\pm$ 2.5
ST7	27.8 $\pm$ 0.95	19.5 $\pm$ 1.8	70	<4	<14	15.8 $\pm$ 6.1	20 $\pm$ 5
ST8	20.1 $\pm$ 1.2	9.34 $\pm$ 1.1	47	2.60 $\pm$ 0.75	13	64.1 $\pm$ 6.2^c	46 $\pm$ 16^d
ST9	...	1.84 $\pm$ 0.17	...	<2	...	...	54 $\pm$ 22
ST10	39.8 $\pm$ 5.0	14.5 $\pm$ 2.1	36	7.72 $\pm$ 1.5	19	<10	32 $\pm$ 14
ST11	8.9 $\pm$ 0.3	0.9 $\pm$ 0.23	10	<0.5	<1	116 $\pm$ 6.	338 $\pm$ 27
ST12	2.34 $\pm$ 0.12	0.9 $\pm$ 0.15^b	39	...	...	<7	23 $\pm$ 3^d

Notes. ^(a) Derived from low-resolution spectrum of Shimonishi et al. (2008), but re-calculated after applying our own spectral reduction pipeline.
^(b) Derived by Oliveira et al. (2009).
^(c) Detection of a strong [OIII] emission line at 88 $\mu$ m is reported by van Loon et al. (2010a).
^(d) Estimated luminosities 95 and 62 $L_{\odot}$ from van Loon et al. (2010a), on the basis of far-infrared data, for ST8 and ST10, respectively.

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