Dust, ice and gas in time (DIGIT): Herschel and Spitzer spectro-imaging of SMM3 and SMM4 in Serpens

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Table 7

Parameters of the shock models employed.

Model	KN’96	FPDF’10

v_s (range, km s^-1)	5−40	10−40^a
v_s (step, km s^-1)	5	10
n (range, cm^-3)	10⁴ − 10^6.5	2 × 10⁴ − 2 × 10⁵
n (step, cm^-3)	10^0.5	10
J-shocks^b	no	yes
H₂ lines	all	all
CO lines	all	J_up ≤ 20
H₂O lines	limited	all
[OI] lines	no	all

Notes.

^(a)

10−30 km s^-1 for J-shocks.

^(b)

, with b = 0 for C- and b = 1 for J-shocks.

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