Episodic accretion constrained by a rich cluster of outflows

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Volume 636 (April 2020)

A&A, 636 (2020) A38

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Table 3

Characteristics of the series of knots detected in the molecular jets driven by W43-MM1 protostars located in its center (top rows) and south-western (bottom rows) part.

Cores	Blue lobe					Red lobe

	r_knot ^(a)	ΔV_knot ^(a)	ΔV_lobe	t_knot	Δt ^(b)	r_knot ^(a)	ΔV_knot ^(a)	ΔV_lobe	t_knot	Δt ^(b)
	[′′ ]	[km s⁻¹ ]	[km s⁻¹ ]	[kyr]	[kyr]	[′′]	[km s⁻¹]	[km s⁻¹]	[kyr]	[kyr]
#1						0.8	20	20 ± 3	1.0 ± 0.4

#2	0.4	35		0.3 ± 0.2
	1.4	33	34 ± 3	1.0 ± 0.2	0.7 ± 0.4	1.2	39	39 ± 3	0.8 ± 0.2

#3	1.6	69		0.5 ± 0.1		0.8	47		0.4 ± 0.1
	3.5	79	74 ± 5	1.2 ± 0.2	0.7 ± 0.3	2.2	46	48 ± 3	1.2 ± 0.2	0.7 ± 0.3
						3.6	51		1.9 ± 0.2	0.7 ± 0.3

#7						0.7	21		0.5 ± 0.3
	2.8	49	49 ± 3	1.5 ± 200		3.8	36	33 ± 7	2.9 ± 0.8	2.4 ± 0.8
						6.1	40		4.7 ± 1.2	1.8 ± 0.7
						7.0	36		5.4 ± 1.3	0.7 ± 0.5

#8	0.6	47		0.3 ± 0.2		0.8	51		0.4 ± 0.1
	1.8	66		0.9 ± 0.4	0.6 ± 0.4	3.0	68		1.5 ± 0.2	1.1 ± 0.3
	5.3	79		2.7 ± 1.0	1.8 ± 0.8	3.9	48		2.0 ± 0.2	0.5 ± 0.2
	6.8	31	49 ± 16	3.5 ± 1.2	0.8 ± 0.5	6.2	49	49 ± 3	3.2 ± 0.3	1.2 ± 0.3
	8.3	34		4.3 ± 1.4	0.8 ± 0.5
	11.2	50		5.8 ± 1.9	1.5 ± 0.7
	14.0	51		7.2 ± 2.4	1.4 ± 0.7
	16.7	36		8.6 ± 2.8	1.4 ± 0.6

#9	0.4	55		0.2 ± 0.1		0.7	46		0.4 ± 0.1
	1.5	55	55 ± 3	0.7 ± 0.1	0.5 ± 0.2	2.2	46	46 ± 3	1.2 ± 0.2	0.8 ± 0.3

#10	0.6	27	27 ± 3	0.6 ± 0.3

#12						0.7	39	39 ± 3	0.5 ± 0.2
#13	0.7	26	26 ± 3	0.7 ± 0.3		0.5	22	22 ± 3	0.6 ± 0.3

#16	0.4	56		0.2 ± 0.2
	0.9	33	45 ± 12	0.5 ± 0.3	0.3 ± 0.3	0.9	58	58 ± 3	0.4 ± 0.1

#18	0.8	26	26 ± 3	0.8 ± 0.3
#19	0.4	23	23 ± 3	0.4 ± 0.3		0.3	22	22 ± 3	0.4 ± 0.3

#22-a	0.3	36	36 ± 3	0.2 ± 0.2		0.6	36	40 ± 4	0.4 ± 0.2
						1.8	44		1.1 ± 0.2	0.8 ± 0.3
#22-b						0.3	51	41 ± 11	0.2 ± 0.2
						1.2	30		0.8 ± 0.3	0.6 ± 0.4

#23	0.9	36	36 ± 3	0.6 ± 0.2
#49	1.4	53	53 ± 3	0.7 ± 0.1		2.1	56	56 ± 3	1.0 ± 0.1

#15	1.4	61		0.8 ± 0.3		1.6	55		0.8 ± 0.2
	2.7	40	47 ± 11	1.5 ± 0.5	0.7 ± 0.4	5.2	50	49 ± 6	2.7 ± 0.5	1.9 ± 0.4
	4.4	37		2.4 ± 0.7	0.9 ± 0.4	6.1	42		3.2 ± 0.5	0.5 ± 0.3

#26	1.5	40		1.0 ± 0.2		0.6	49		0.4 ± 0.2
	3.8	39		2.5 ± 0.4	1.5 ± 0.4	2.5	60^(b)		1.5 ± 0.4	1.1 ± 0.4
	5.4	43	39 ± 4	3.6 ± 0.5	1.1 ± 0.4	3.9	35	42 ± 7	2.4 ± 0.4	0.8 ± 0.4
	6.3	32		4.1 ± 0.6	0.6 ± 0.2

#29	1.5	31		1.2 ± 0.3
	2.9	35	33 ± 3	2.2 ± 0.4	1.1 ± 0.4

#44	2.4	46	46 ± 3	1.3 ± 0.2

#39	1.0	21		1.6 ± 0.8		2.0	113		2.7 ± 0.7
	3.5	9	16 ± 5	5.5 ± 2.1	4 ± 1	3.6	115	19 ± 3	4.8 ± 1.0	2.1 ± 0.9
	6.2	18		9.8 ± 3.4	4 ± 1	6.5	114		8.7 ± 1.6	4 ± 1

#59	0.8	50		0.5 ± 0.1		0.5	50		0.3 ± 0.2
	2.0	45	45 ± 4	1.1 ± 0.2	0.7 ± 0.3	1.1	60^(c)	43 ± 7	0.6 ± 0.3	0.4 ± 0.3
	2.5	41		1.4 ± 0.2	0.3 ± 0.3	1.7	45		1.0 ± 0.3	0.4 ± 0.3
						2.3	33		1.4 ± 0.3	0.4 ± 0.3

#67	0.8	44		0.4 ± 0.2		1.3	53		0.6 ± 0.1
	2.3	63		1.1 ± 0.3	0.7 ± 0.3	3.1	63		1.3 ± 0.2	0.8 ± 0.2
	4.3	59	52 ± 8	2.1 ± 0.4	1.0 ± 0.3	4.6	55	57 ± 4	2.1 ± 0.2	0.7 ± 0.2
	6.4	50		3.1 ± 0.6	1.0 ± 0.3	6.0	56		2.7 ± 0.3	0.6 ± 0.2
	7.8	45		3.8 ± 0.7	0.7 ± 0.3

Notes. ^(a) Distance and velocity offset of knots with respect to the core, uncertain by up to 0.2′′ (0.005 pc) and 3 km s⁻¹, respectively. ^(b) Difference between dynamical timescales t_knot of successive knots. ^(c)This knot is part of the blue lobe of both core #26 and core #59. Because of this confusion, it is not used for ΔV_lobe calculations.

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