Cloud G074.11+00.11: a stellar cluster in formation

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Table 2

Physical parameters of the regions indicated in Fig. 2.

		Radius	N(H₂) ⁽¹⁾		M_c ⁽¹⁾	M_virial(N₂H⁺)
Region	Shape	′′	(10²² cm⁻²)	(km s⁻¹)	(M_⊙)	(M_⊙)
S1	Circle	54	2.63 ± 0.03	1.02 ± 0.22	700 ± 19	220 ± 13
S2	Ellipse	72 × 36	1.44 ± 0.02	0.67 ± 0.31	340 ± 11	10 ± 2
S3	Ellipse	36 × 60	1.13 ± 0.03	0.37 ± 0.15	220 ± 7	3 ± 1
S4	Ellipse	72 × 36	1.12 ± 0.01	0.82 ± 0.30	260 ± 11	14 ± 3
S5	Circle	35	1.57 ± 0.02	1.34 ± 0.41	80 ± 8	37 ± 8
S6	Circle	35	1.26 ± 0.04	0.66 ± 0.19	65 ± 6	8 ± 2
S7	Circle	40	0.93 ± 0.05	0.71 ± 0.11	50 ± 2	10 ± 3

Notes. The shape of the region, radius, average H₂ column density, velocity dispersion, estimated clump mass, and virial mass. A distance of 2.3 kpc pc is assumed in the mass estimates of Cols. 6 and 7. ⁽¹⁾Estimated from the Herschel observations.

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