Star-forming dwarf galaxies in the Virgo cluster: the link between molecular gas, atomic gas, and dust

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Volume 590 (June 2016)

A&A, 590 (2016) A27

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Table 2

CO line intensities, systemic velocities, line widths, and noise level at 115 and 230 GHz.

ID	^a	^b	^a	^b	V_sys,g ^c			σ^{(1 − 0)} ^d	σ^{(2 − 1)} ^d
	[K km s^-1]	[K km s^-1]	[K km s^-1]	[K km s^-1]	[km s^-1]	[km s^-1]	[km s^-1]	[mK]	[mK]

VCC10	<0.41	<0.41	0.99 ± 0.13	1.11 ± 0.19	–; 1938	–	59	4.7	5.0
VCC87	<0.42	<0.42	–	–	–157	–	–	3.7	–
VCC135	1.71 ± 0.30	1.84 ± 0.34	5.25 ± 0.40	5.37 ± 0.47	2409; 2406	112	112	9.4	10.8
VCC144	<0.39	<0.39	1.11 ± 0.12	1.13 ± 0.14	–; 2026	–	69	4.1	4.0
VCC172	<1.06	<1.06	<1.26	<1.26	2175	–	–	8.3	9.9
VCC213(a)	3.57 ± 0.25	3.44 ± 0.26	3.08 ± 0.33	3.66 ± 0.31	–164; –167	80	69	10.3	11.3
VCC213(b)	2.45 ± 0.19	2.64 ± 0.23	3.64 ± 0.21	3.54 ± 0.25	–131; –125	44	29	6.0	9.4
VCC324	0.51 ± 0.11	0.47 ± 0.16	0.74 ± 0.09	0.69 ± 0.08	1540; 1530	42	26	2.8^e	3.3
VCC334	<0.22	<0.22	–	–	–240	–	–	3.0	–
VCC340	0.58 ± 0.13	0.62 ± 0.16	0.90 ± 0.11	0.81 ± 0.08	1519; 1513	46	32	4.0	3.5
VCC562	<0.80	<0.80	–	–	44	–	–	10.9	–
VCC693	<0.58	<0.58	<0.55	<0.55	2048	–	–	5.1	4.9
VCC699(a)	0.66 ± 0.13	0.80 ± 0.13	0.65 ± 0.09	0.63 ± 0.09	720; 711	69	29	4.4	4.0
VCC699(b)	0.65 ± 0.13	0.64 ± 0.23	0.60 ± 0.11	0.55 ± 0.15	743; 734	48	17	6.2	7.5
VCC737	<0.39	<0.39	–	–	1725	–	–	2.7	–
VCC841	<0.31	<0.31	–	–	491	–	–	4.4	–
VCC1437	1.25 ± 0.13	1.29 ± 0.17	2.62 ± 0.12	2.74 ± 0.11	1157; 1160	56	51	4.8	3.8
VCC1575(a)	3.21 ± 0.22	3.33 ± 0.23	5.54 ± 0.26	5.26 ± 0.27	577; 579	39	32	7.7	10.6
VCC1575(b)	4.48 ± 0.23	4.51 ± 0.27	6.95 ± 0.30	6.83 ± 0.34	583; 583	48	43	8.5	11.4
VCC1575(c)	4.83 ± 0.25	5.11 ± 0.25	3.93 ± 0.21	3.80 ± 0.22	608; 610	50	32	6.4	9.5
VCC1575(d)	4.41 ± 0.19	4.38 ± 0.22	6.38 ± 0.23	6.66 ± 0.24	621; 616	42	42	7.6	9.6
VCC1575(e)	1.20 ± 0.20	0.91 ± 0.16	<0.50	<0.50	574; –	20	–	7.6	9.7
VCC1686(a)	0.74 ± 0.12	0.90 ± 0.13	0.81 ± 0.11	0.83 ± 0.14	1123; 1121	37	28	5.8	6.4
VCC1686(b)	<0.90	<0.90	<0.96	<0.96	–;–	–	–	9.5	10.0
VCC1686(c)	1.20 ± 0.30	1.31 ± 0.41	<1.06	<1.06	1130;–	70	–	6.3^e	11.1
VCC1699	<0.30	<0.30	–	–	1632	–	–	2.8	–
VCC1725	0.41 ± 0.12	0.46 ± 0.13	<0.34	<0.34	1049;–	28	–	4.5	5.6
VCC1791	<0.46	<0.46	–	–	2075	–	–	4.2	–

Notes.

^(a)

Measured summing of the spectrum over the observed velocity width.

^(b)

Measured by fitting a Gaussian function or a linear combination of the first two symmetric Hermite functions.

^(c)

Systemic velocity derived from the fit of the CO(1−0) and CO(2−0) lines. For non-detections we display only the systemic velocities determined from the SDSS optical spectra.

^(d)

Noise level at a spectral resolution of 8.1 km s^-1.

^(e)

Noise level measured at a spectral resolution of 16.2 km s^-1.

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