Feedback from OB stars on their parent cloud: gas exhaustion rather than gas ejection

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Table 1

Average properties the active and quiescent parts of the ridge within the 3.12 × 10²³ cm⁻² H₂ column density contour (see Sect. 4).

Region	Area ^(a)	Length ^(b)	Width		M_ridge
	(pc²)	(pc)	(pc)	(×10²³ cm⁻²)	(M_⊙)	(K)	(pc)	(M_⊙)
Active	5.86	6.0	0.63 ± 0.08	0.85	11 200 ± 3800	19.6 ± 2.3	0.50 ± 0.22	570 ± 470
Quiescent	10.08	7.6	0.63 ± 0.08	0.34	7700 ± 2700	15.6 ± 0.8	0.66 ± 0.17	170 ± 90

Notes. ^(a) Error propagated from the distance error and is equal to a fractional error of 1/3. ^(b) Error propagated from the distance error and is equal to a fractional error of 1/6.

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