Reconstructing the density and temperature structure of prestellar cores from Herschel data: A case study for B68 and L1689B

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Table 2

Best-fit parameters of Bonnor-Ebert core models for B68 and L1689B.

Source	ξ _max	ρ_c/ρ_s ^a	c_s^b	P _ext	R _flat ^c	R _out	n _c
profile			(km s^-1)	(K cm^-3)	(AU)	(AU)	(cm^-3)
				× 10⁴	× 10³	× 10⁴	× 10⁴


B68	7.0 ± 0.1	17	0.17	3.9	4.4	1.5	8.3
L1689B-C	16.6 ± 0.7	145	0.27	2.9	4.5	3.7	20
L1689B-NS	13.5 ± 0.3	88	0.24	3.2	4.4	2.9	17
L1689B-EW	16.2 ± 1.7	137	0.26	2.2	4.7	3.8	16.5

Notes.

^(a)

ρ_c and ρ_s denote central density and density at the outer surface of the BE sphere, respectively.

^(b)

Isothermal sound speed.

^(c)

Flat inner radius, defined as .

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