Table A.1: SCUBA 850 $\mu$ m core positions, names and references, peak 850 $\mu$ m fluxes and C¹⁸O integrated intensity at the submm peak position.
No. RA₂₀₀₀ Dec₂₀₀₀ Cluster⁽¹⁾ Name Reference⁽²⁾ F₈₅₀⁽³⁾ $I(\hbox{C}^{18}\hbox{O})^{(4)}$

hh:mm:ss dd:mm:ss mJy/bm K km s^-1

1 03:33:17.9 31:09:33 B1 B1-c Matthews & Wilson (2002) 1638 4.0

2 03:33:21.4 31:07:31 B1 B1-bS Matthews & Wilson (2002); Hirano et al. (1999) 1554 4.8

3 03:33:21.1 31:07:40 B1 B1-bN Matthews & Wilson (2002); Hirano et al. (1999) 1200 4.8

4 03:33:16.3 31:06:54 B1 B1-d Matthews & Wilson (2002) 514 4.1

5 03:33:01.9 31:04:23 B1 None 218 3.3

6 03:33:05.6 31:05:06 B1 None 207 2.8

7 03:33:16.5 31:07:51 B1 B1-a Matthews & Wilson (2002); Hirano et al. (1999) 202 4.5

8 03:33:04.0 31:04:56 B1 None 202 2.9

9 03:33:03.0 31:04:38 B1 None 196 3.4

10 03:33:27.3 31:07:10 B1 None 179 4.2

11 03:33:00.3 31:04:17 B1 None 160 3.4

12 03:43:56.5 32:00:50 HH211 HH211 Chandler & Richer (2000); McCaughrean et al. (1994) 1494 2.5

13 03:43:56.9 32:03:05 HH211 IC 348 MMS Eislöffel et al. (2003) 1032 3.1

14 03:44:43.9 32:01:32 HH211 None 623 2.0

15 03:43:50.8 32:03:24 HH211 No SMM/MM source 358 2.2

16 03:44:01.0 32:01:55 HH211 None 296 2.4

17 03:43:57.9 32:04:01 HH211 None 247 3.0

18 03:44:03.0 32:02:24 HH211 No SMM/MM source 237 2.5

19 03:44:36.8 31:58:49 HH211 None 234 1.8

20 03:44:05.5 32:01:57 HH211 No SMM/MM source 209 2.4

21 03:44:02.3 32:02:48 HH211 None 207 2.9

22 03:44:06.2 32:02:12 HH211 None 204 2.4

23 03:43:37.8 32:03:06 HH211 None 170 1.5

24 03:43:42.5 32:03:23 HH211 None 168 2.3

25 03:44:48.5 32:00:31 HH211 None 153 2.0

26 03:43:44.4 32:02:56 HH211 None 153 2.5

27 03:25:35.9 30:45:30 L1448 L1448NW Looney et al. (2000); Barsony et al. (1998) 2300 2.9

28 03:25:36.4 30:45:15 L1448 L1448N B Looney et al. (2000); Barsony et al. (1998) 2243 2.7

29 03:25:38.8 30:44:04 L1448 L1448 C Barsony et al. (1998); Bachiller et al. (1991) 1737 2.3

30 03:25:22.4 30:45:11 L1448 L1448-IRS2 O'Linger et al. (1999) 1316 2.2

31 03:25:25.9 30:45:03 L1448 None 429 2.4

32 03:25:49.0 30:42:25 L1448 None 364 2.0

33 03:25:50.6 30:42:01 L1448 None 306 2.1

34 03:25:30.8 30:45:07 L1448 None 231 2.6

35 03:27:39.1 30:13:01 L1455 RNO 15 FIR Rengel et al. (2002) 556 1.4

36 03:27:42.9 30:12:28 L1455 None 402 0.9

37 03:27:48.4 30:12:09 L1455 No SMM/MM source 324 0.8

38 03:27:46.6 30:12:05 L1455 No SMM/MM source 272 0.9

39 03:27:38.1 30:13:57 L1455 No SMM/MM source 238 1.4

40 03:27:39.9 30:12:10 L1455 None 232 1.4

41 03:29:10.4 31:13:30 NGC 1333 IRAS 4A Sandell et al. (1991) 7000 3.7

42 03:29:12.0 31:13:10 NGC 1333 IRAS 4B; SK-3 Sandell et al. (1991); Sandell & Knee (2001) 3025 3.4

43 03:29:03.2 31:15:59 NGC 1333 HH7-11 MMS 1; SK-12/13 Chini et al. (1997) 2831 4.0

44 03:28:55.3 31:14:36 NGC 1333 IRAS 2A; SK-8 Sandell et al. (1994); Sandell & Knee (2001) 2355 3.8

45 03:29:01.4 31:20:29 NGC 1333 SK-24 Sandell & Knee (2001) 1119 3.7

46 03:29:10.9 31:18:27 NGC 1333 SK-20 Sandell & Knee (2001) 1061 3.6

47 03:28:59.7 31:21:34 NGC 1333 SK-31 Sandell & Knee (2001) 770 4.9

48 03:29:13.6 31:13:55 NGC 1333 IRAS 4C; SK-5 Looney et al. (2000); Sandell & Knee (2001) 667 3.3

49 03:28:36.7 31:13:30 NGC 1333 SK-6 Sandell & Knee (2001) 621 2.0

50 03:29:06.5 31:15:39 NGC 1333 HH 7-11 MMS 4; SK-15 Chini et al. (2001); Sandell & Knee (2001) 619 3.2

51 03:29:08.8 31:15:18 NGC 1333 SK-16 Sandell & Knee (2001) 574 2.8

52 03:29:03.7 31:14:53 NGC 1333 HH7-11 MMS 6; SK-14 Chini et al. (2001); Sandell & Knee (2001) 517 3.8

53 03:29:04.5 31:20:59 NGC 1333 SK-26 Sandell & Knee (2001) 513 4.8

54 03:29:10.7 31:21:45 NGC 1333 SK-28 Sandell & Knee (2001) 420 3.6

55 03:28:40.4 31:17:51 NGC 1333 None 410 1.9

56 03:29:07.7 31:21:57 NGC 1333 SK-29 Sandell & Knee (2001) 394 4.3

57 03:29:18.2 31:25:11 NGC 1333 SK-33 Sandell & Knee (2001) 376 4.1

58 03:29:24.0 31:33:21 NGC 1333 None 371 0.9

59 03:29:16.5 31:12:35 NGC 1333 None 371 3.2

60 03:28:39.3 31:18:27 NGC 1333 None 354 2.9

61 03:29:17.3 31:27:50 NGC 1333 None 349 2.3

62 03:29:07.1 31:17:24 NGC 1333 SK-18 Sandell & Knee (2001) 318 4.0

63 03:29:18.8 31:23:17 NGC 1333 SK-32 Sandell & Knee (2001) 308 3.8

64 03:29:25.5 31:28:18 NGC 1333 None 292 1.4

65 03:29:00.4 31:12:01 NGC 1333 SK-1 Sandell & Knee (2001) 288 2.3

66 03:29:05.3 31:22:11 NGC 1333 SK-30 Sandell & Knee (2001) 228 5.1

67 03:29:19.7 31:23:56 NGC 1333 None 223 4.7

68 03:28:56.2 31:19:13 NGC 1333 No SMM/MM source 201 3.9

69 03:28:34.4 31:06:59 NGC 1333 None 201 1.3

70 03:29:15.3 31:20:31 NGC 1333 SK-22 Sandell & Knee (2001) 192 4.2

71 03:28:38.7 31:05:57 NGC 1333 None 177 1.9

72 03:29:19.1 31:11:38 NGC 1333 No SMM/MM source 167 2.6

73 03:28:38.8 31:19:15 NGC 1333 None 162 2.4

74 03:28:32.5 31:11:08 NGC 1333 None 156 1.9

75 03:28:42.6 31:06:10 NGC 1333 None 153 2.2

76 03:32:17.8 30:49:46 None No SMM/MM source 1916 1.7

77 03:31:21.0 30:45:28 None I03282+3035 Bachiller et al. (1994); Motte & André (2001) 892 1.1

78 03:47:41.6 32:51:44 None⁽⁵⁾ B5 IRS1 Motte & André (2001) 424 ?

79 03:47:39.1 32:52:18 None⁽⁵⁾ None 335 ?

80 03:26:37.6 30:15:24 None No SMM/MM source 302 0.2

81 03:30:15.5 30:23:43 None No SMM/MM source 253 0.9

82 03:33:13.1 31:19:51 None None 219 2.4

83 03:32:48.9 31:09:40 None None 188 0.3

84 03:32:21.9 31:04:56 None⁽⁶⁾ None 184 0.2

85 03:28:32.5 31:00:53 None 03254+3050 Dent et al. (1998) 177 1.5

86 03:26:30.9 30:32:28 None None 176 1.5

87 03:32:21.5 31:05:08 None⁽⁶⁾ None 166 0.4

88 03:31:31.6 30:43:32 None None 165 2.2

89 03:32:25.9 30:59:05 None None 164 2.2

90 03:45:16.5 32:04:47 None None 163 0.8

91 03:29:23.3 31:36:08 None None 154 ?

⁽¹⁾ If the core satisfies the cluster membership criterion (Sect. 3) then the cluster name is given here.

⁽²⁾ References are to the earliest previous detection of the submillimetre source. Full cross-identifications with sources at other wavelengths are non-trivial due to differing beam sizes and are left for a future analysis, but to indicate an obvious likely counterpart (e.g., IRAS), "No SMM/MM source'' is marked in the "Name'' column instead of "None''.

⁽³⁾ SCUBA 850 $\mu$ m peak flux (14'' beam).

⁽⁴⁾ C¹⁸O integrated intensity (1' beam averaged) at the 850 $\mu$ m peak. A question mark in this column indicates a SCUBA peak which lies outside the C¹⁸O map.

⁽⁵⁾ B5 pair.

⁽⁶⁾ B1 west pair.

**Table A.1:** SCUBA 850 $\mu$ m core positions, names and references, peak 850 $\mu$ m fluxes and C¹⁸O integrated intensity at the submm peak position.
No.	RA₂₀₀₀	Dec₂₀₀₀	Cluster⁽¹⁾	Name	Reference⁽²⁾	F₈₅₀⁽³⁾	$I(\hbox{C}^{18}\hbox{O})^{(4)}$
	hh:mm:ss	dd:mm:ss				mJy/bm	K km s^-1
1	03:33:17.9	31:09:33	B1	B1-c	Matthews & Wilson (2002)	1638	4.0
2	03:33:21.4	31:07:31	B1	B1-bS	Matthews & Wilson (2002); Hirano et al. (1999)	1554	4.8
3	03:33:21.1	31:07:40	B1	B1-bN	Matthews & Wilson (2002); Hirano et al. (1999)	1200	4.8
4	03:33:16.3	31:06:54	B1	B1-d	Matthews & Wilson (2002)	514	4.1
5	03:33:01.9	31:04:23	B1	None		218	3.3
6	03:33:05.6	31:05:06	B1	None		207	2.8
7	03:33:16.5	31:07:51	B1	B1-a	Matthews & Wilson (2002); Hirano et al. (1999)	202	4.5
8	03:33:04.0	31:04:56	B1	None		202	2.9
9	03:33:03.0	31:04:38	B1	None		196	3.4
10	03:33:27.3	31:07:10	B1	None		179	4.2
11	03:33:00.3	31:04:17	B1	None		160	3.4
12	03:43:56.5	32:00:50	HH211	HH211	Chandler & Richer (2000); McCaughrean et al. (1994)	1494	2.5
13	03:43:56.9	32:03:05	HH211	IC 348 MMS	Eislöffel et al. (2003)	1032	3.1
14	03:44:43.9	32:01:32	HH211	None		623	2.0
15	03:43:50.8	32:03:24	HH211	No SMM/MM source		358	2.2
16	03:44:01.0	32:01:55	HH211	None		296	2.4
17	03:43:57.9	32:04:01	HH211	None		247	3.0
18	03:44:03.0	32:02:24	HH211	No SMM/MM source		237	2.5
19	03:44:36.8	31:58:49	HH211	None		234	1.8
20	03:44:05.5	32:01:57	HH211	No SMM/MM source		209	2.4
21	03:44:02.3	32:02:48	HH211	None		207	2.9
22	03:44:06.2	32:02:12	HH211	None		204	2.4
23	03:43:37.8	32:03:06	HH211	None		170	1.5
24	03:43:42.5	32:03:23	HH211	None		168	2.3
25	03:44:48.5	32:00:31	HH211	None		153	2.0
26	03:43:44.4	32:02:56	HH211	None		153	2.5
27	03:25:35.9	30:45:30	L1448	L1448NW	Looney et al. (2000); Barsony et al. (1998)	2300	2.9
28	03:25:36.4	30:45:15	L1448	L1448N B	Looney et al. (2000); Barsony et al. (1998)	2243	2.7
29	03:25:38.8	30:44:04	L1448	L1448 C	Barsony et al. (1998); Bachiller et al. (1991)	1737	2.3
30	03:25:22.4	30:45:11	L1448	L1448-IRS2	O'Linger et al. (1999)	1316	2.2
31	03:25:25.9	30:45:03	L1448	None		429	2.4
32	03:25:49.0	30:42:25	L1448	None		364	2.0
33	03:25:50.6	30:42:01	L1448	None		306	2.1
34	03:25:30.8	30:45:07	L1448	None		231	2.6
35	03:27:39.1	30:13:01	L1455	RNO 15 FIR	Rengel et al. (2002)	556	1.4
36	03:27:42.9	30:12:28	L1455	None		402	0.9
37	03:27:48.4	30:12:09	L1455	No SMM/MM source		324	0.8
38	03:27:46.6	30:12:05	L1455	No SMM/MM source		272	0.9
39	03:27:38.1	30:13:57	L1455	No SMM/MM source		238	1.4
40	03:27:39.9	30:12:10	L1455	None		232	1.4
41	03:29:10.4	31:13:30	NGC 1333	IRAS 4A	Sandell et al. (1991)	7000	3.7
42	03:29:12.0	31:13:10	NGC 1333	IRAS 4B; SK-3	Sandell et al. (1991); Sandell & Knee (2001)	3025	3.4
43	03:29:03.2	31:15:59	NGC 1333	HH7-11 MMS 1; SK-12/13	Chini et al. (1997)	2831	4.0
44	03:28:55.3	31:14:36	NGC 1333	IRAS 2A; SK-8	Sandell et al. (1994); Sandell & Knee (2001)	2355	3.8
45	03:29:01.4	31:20:29	NGC 1333	SK-24	Sandell & Knee (2001)	1119	3.7
46	03:29:10.9	31:18:27	NGC 1333	SK-20	Sandell & Knee (2001)	1061	3.6
47	03:28:59.7	31:21:34	NGC 1333	SK-31	Sandell & Knee (2001)	770	4.9
48	03:29:13.6	31:13:55	NGC 1333	IRAS 4C; SK-5	Looney et al. (2000); Sandell & Knee (2001)	667	3.3
49	03:28:36.7	31:13:30	NGC 1333	SK-6	Sandell & Knee (2001)	621	2.0
50	03:29:06.5	31:15:39	NGC 1333	HH 7-11 MMS 4; SK-15	Chini et al. (2001); Sandell & Knee (2001)	619	3.2
51	03:29:08.8	31:15:18	NGC 1333	SK-16	Sandell & Knee (2001)	574	2.8
52	03:29:03.7	31:14:53	NGC 1333	HH7-11 MMS 6; SK-14	Chini et al. (2001); Sandell & Knee (2001)	517	3.8
53	03:29:04.5	31:20:59	NGC 1333	SK-26	Sandell & Knee (2001)	513	4.8
54	03:29:10.7	31:21:45	NGC 1333	SK-28	Sandell & Knee (2001)	420	3.6
55	03:28:40.4	31:17:51	NGC 1333	None		410	1.9
56	03:29:07.7	31:21:57	NGC 1333	SK-29	Sandell & Knee (2001)	394	4.3
57	03:29:18.2	31:25:11	NGC 1333	SK-33	Sandell & Knee (2001)	376	4.1
58	03:29:24.0	31:33:21	NGC 1333	None		371	0.9
59	03:29:16.5	31:12:35	NGC 1333	None		371	3.2
60	03:28:39.3	31:18:27	NGC 1333	None		354	2.9
61	03:29:17.3	31:27:50	NGC 1333	None		349	2.3
62	03:29:07.1	31:17:24	NGC 1333	SK-18	Sandell & Knee (2001)	318	4.0
63	03:29:18.8	31:23:17	NGC 1333	SK-32	Sandell & Knee (2001)	308	3.8
64	03:29:25.5	31:28:18	NGC 1333	None		292	1.4
65	03:29:00.4	31:12:01	NGC 1333	SK-1	Sandell & Knee (2001)	288	2.3
66	03:29:05.3	31:22:11	NGC 1333	SK-30	Sandell & Knee (2001)	228	5.1
67	03:29:19.7	31:23:56	NGC 1333	None		223	4.7
68	03:28:56.2	31:19:13	NGC 1333	No SMM/MM source		201	3.9
69	03:28:34.4	31:06:59	NGC 1333	None		201	1.3
70	03:29:15.3	31:20:31	NGC 1333	SK-22	Sandell & Knee (2001)	192	4.2
71	03:28:38.7	31:05:57	NGC 1333	None		177	1.9
72	03:29:19.1	31:11:38	NGC 1333	No SMM/MM source		167	2.6
73	03:28:38.8	31:19:15	NGC 1333	None		162	2.4
74	03:28:32.5	31:11:08	NGC 1333	None		156	1.9
75	03:28:42.6	31:06:10	NGC 1333	None		153	2.2
76	03:32:17.8	30:49:46	None	No SMM/MM source		1916	1.7
77	03:31:21.0	30:45:28	None	I03282+3035	Bachiller et al. (1994); Motte & André (2001)	892	1.1
78	03:47:41.6	32:51:44	None⁽⁵⁾	B5 IRS1	Motte & André (2001)	424	?
79	03:47:39.1	32:52:18	None⁽⁵⁾	None		335	?
80	03:26:37.6	30:15:24	None	No SMM/MM source		302	0.2
81	03:30:15.5	30:23:43	None	No SMM/MM source		253	0.9
82	03:33:13.1	31:19:51	None	None		219	2.4
83	03:32:48.9	31:09:40	None	None		188	0.3
84	03:32:21.9	31:04:56	None⁽⁶⁾	None		184	0.2
85	03:28:32.5	31:00:53	None	03254+3050	Dent et al. (1998)	177	1.5
86	03:26:30.9	30:32:28	None	None		176	1.5
87	03:32:21.5	31:05:08	None⁽⁶⁾	None		166	0.4
88	03:31:31.6	30:43:32	None	None		165	2.2
89	03:32:25.9	30:59:05	None	None		164	2.2
90	03:45:16.5	32:04:47	None	None		163	0.8
91	03:29:23.3	31:36:08	None	None		154	?

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations and data reduction
	3 Clusters
	4 Filaments
	5 Column density condition for star formation
	6 Conclusions
	References
	Online Material
	Appendix A: Details of power law fitting procedure

⁽¹⁾ If the core satisfies the cluster membership criterion (Sect. 3) then the cluster name is given here.
⁽²⁾ References are to the earliest previous detection of the submillimetre source. Full cross-identifications with sources at other wavelengths are non-trivial due to differing beam sizes and are left for a future analysis, but to indicate an obvious likely counterpart (e.g., IRAS), "No SMM/MM source'' is marked in the "Name'' column instead of "None''.
⁽³⁾ SCUBA 850 $\mu$ m peak flux (14'' beam).
⁽⁴⁾ C¹⁸O integrated intensity (1' beam averaged) at the 850 $\mu$ m peak. A question mark in this column indicates a SCUBA peak which lies outside the C¹⁸O map.
⁽⁵⁾ B5 pair.
⁽⁶⁾ B1 west pair.