Standing in the shadow of dark gas: ALMA observations of absorption from dark CO in the molecular dark neutral medium of Chamaeleon

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Volume 627 (July 2019)

A&A, 627 (2019) A95

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Table 3

Gaussian decomposition of HCO⁺ and CO absorption.

	HCO ⁺	HCO ⁺	HCO ⁺	HCO ⁺	CO	CO	CO	CO
Source	v₀	τ₀	FWHM		v₀	τ₀	FWHM	ϒ_CO
	km s⁻¹		km s⁻¹	km s⁻¹	km s⁻¹		km s⁻¹	km s⁻¹

J0942	4.478	0.634	0.846	0.571	4.494	0.347	0.368	0.136
±	0.029	0.046	0.069	0.040	0.056	0.118	0.128	0.043
	6.045	0.402	1.009	0.432	5.766	0.568	1.046	0.632
±	0.040	0.035	0.098	0.036	0.064	0.086	0.149	0.085

J1058	3.236	0.134	1.409	0.201
±	0.014	0.003	0.035	0.004

J1136	0.607	1.100	0.938	1.098	0.449	0.507	0.704	0.380
±	0.007	0.022	0.017	0.019	0.022	0.038	0.048	0.025
	1.880	0.104	0.684	0.076
±	0.042	0.011	0.101	0.009

J1145	2.501	0.938	0.809	0.808	2.426	0.171	0.701	0.128
±	0.009	0.030	0.019	0.021	0.042	0.022	0.097	0.016

J1224	3.741	0.127	2.261	0.307
±	0.149	0.025	0.287	0.047
	4.218	0.979	0.643	0.670	4.215	0.975	0.481	0.500
±	0.012	0.068	0.028	0.036	0.057	0.169	0.113	0.094

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