Dynamics, CO depletion, and deuterium fractionation of the dense condensations within the fragmented prestellar core Orion B9–SMM 6

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Table 4

One-dimensional non-thermal velocity dispersions, virial masses, and virial parameters of the condensations.

Source	σ _NT	M _vir ^a	α _vir
	[km s^-1]	[M_⊙]

SMM 6a	0.10 ± 0.01	0.6 ± 0.03	1.0 ± 0.4
SMM 6b	0.10 ± 0.01	0.6 ± 0.04	2.1 ± 0.7
SMM 6c	0.10 ± 0.02	0.16 ± 0.01^b	1.6 ± 0.8^b
SMM 6d	0.10 ± 0.01	0.16 ± 0.01^b	1.6 ± 0.8^b
SMM 6c+6d	...	0.3 ± 0.02^c	1.6 ± 0.8^c

Notes.The listed values assume that T_kin = 10 K.

^(a)

A density profile that declines like ~r^-2 was assumed.

^(b)

These values assume that the radii and masses of SMM 6c and 6d are ~0.005 pc and ~0.1 M_⊙ (cf. Table 1).

^(c)

For these values SMM 6c and 6d are treated as a one source.

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