An APEX survey of outflow and infall toward the youngest protostars in Orion

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Volume 642 (October 2020)

A&A, 642 (2020) A137

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Table 6

Parameters of the NH₃ (1,1) and H¹³CO⁺ J = 3–2 lines used in this paper.

Source	Line	Intensity	V_thin	ΔV_thin	T_MB	τ_main	V_thick	δV
		(K km s⁻¹)	(km s⁻¹)	(km s⁻¹)	(K)		(km s⁻¹)
HOPS 341	NH₃ (1,1)	0.61 ± 0.02	9.83 ± 0.01	0.53 ± 0.02	1.07 ± 0.03	1.47 ± 0.07	10.03 ± 0.04	0.38 ± 0.05
HOPS 358	NH₃ (1,1)	0.99 ± 0.02	10.39 ± 0.01	1.20 ± 0.03	0.78 ± 0.03	1.05 ± 0.01	9.60 ± 0.04	−0.66 ± 0.04
HOPS 398	NH₃ (1,1)	0.26 ± 0.03	10.46 ± 0.02	0.60 ± 0.06	0.41 ± 0.03	0.86 ± 0.15	10.05 ± 0.04	−0.68 ± 0.14
HOPS 399	NH₃ (1,1)	1.09 ± 0.02	9.39 ± 0.01	0.66 ± 0.01	1.56 ± 0.02	1.86 ± 0.07	8.59 ± 0.04	−1.21 ± 0.02
HOPS 400	NH₃ (1,1)	1.07 ± 0.02	8.51 ± 0.01	0.56 ± 0.01	1.79 ± 0.03	2.77 ± 0.02	8.33 ± 0.04	−0.32 ± 0.03
HOPS 403	NH₃ (1,1)	0.74 ± 0.03	10.46 ± 0.03	1.59 ± 0.01	0.43 ± 0.04	0.44 ± 0.06	9.69 ± 0.04	−0.48 ± 0.01
HOPS 404	NH₃ (1,1)	0.67 ± 0.02	9.63 ± 0.01	0.43 ± 0.01	1.48 ± 0.04	2.41 ± 0.09	9.30 ± 0.04	−0.77 ± 0.03
HOPS 407	NH₃ (1,1)	0.91 ± 0.02	9.61 ± 0.01	0.45 ± 0.01	1.91 ± 0.04	4.32 ± 0.09	9.27 ± 0.04	−0.76 ± 0.03
HOPS 354	H¹³CO⁺	1.49 ± 0.09	1.02 ± 0.05	1.56 ± 0.11	0.90 ± 0.11	–	1.74 ± 0.04	0.46 ± 0.11
HOPS 359	H¹³CO⁺	1.54 ± 0.08	9.30 ± 0.03	0.99 ± 0.06	1.46 ± 0.13	–	8.67 ± 0.04	−0.64 ± 0.09
HOPS 372	H¹³CO⁺	0.76 ± 0.09	9.18 ± 0.05	0.99 ± 0.15	0.73 ± 0.13	–	8.84 ± 0.04	−0.34 ± 0.21
HOPS 401	H¹³CO⁺	0.53 ± 0.08	10.19 ± 0.08	0.99 ± 0.19	0.51 ± 0.11	–	10.30 ± 0.04	0.11 ± 0.27

Notes. The integrated intensity, LSR velocity, FWHM line width, and peak intensity were obtained from the Gaussian fitting of the F₁ = 0− 1, F = 1∕2−3∕2 transition of NH₃ (1,1) at 23 696.0406 MHz. The opacity of the main group is obtained from fitting the hyperfine structure of NH₃ (1,1).

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