2006ApJ...646.1009K

Query : 2006ApJ...646.1009K

2006ApJ...646.1009K - Astrophys. J., 646, 1009-1023 (2006/August-1)

The large- and small-scale structures of dust in the star-forming Perseus molecular cloud.

KIRK H., JOHNSTONE D. and DI FRANCESCO J.

Abstract (from CDS):

We present an analysis of ∼3.5 deg2 of submillimeter continuum and extinction data of the Perseus molecular cloud. We identify 58 clumps in the submillimeter map, and we identify 39 structures (``cores'') and 11 associations of structures (``super cores'') in the extinction map. The cumulative mass distributions of the submillimeter clumps and extinction cores have steep slopes (α∼2 and 1.5-2, respectively), steeper than the Salpeter initial mass function (IMF; α=1.35), while the distribution of extinction super cores has a shallow slope (α∼1). Most of the submillimeter clumps are well fit by stable Bonnor-Ebert spheres with 10 K<T<19 K and 5.5<log10(Pext/k)<6.0. The clumps are found only in the highest column density regions (AV>5-7 mag), although Bonnor-Ebert models suggest that we should have been able to detect them at lower column densities if they exist. These observations provide a stronger case for an extinction threshold than that found in analysis of less sensitive observations of the Ophiuchus molecular cloud (Johnstone et al.). The relationship between submillimeter clumps and their parent extinction core has been analyzed. The submillimeter clumps tend to lie offset from the larger extinction peaks, suggesting that the clumps formed via an external triggering event, consistent with previous observations.

Abstract Copyright: ∼

Journal keyword(s): ISM: Clouds - Stars: Formation

VizieR on-line data: <Available at CDS (J/ApJ/646/1009): table1.dat table2.dat table3.dat>

Nomenclature: Table 1: [KJD2006] SMM JHHMMmm+DDMMm N=58. Table 2: [KJD2006] EC NN (Nos 1-39). Table 3: [KJD2006] ESC NN (Nos 1-11).

Errata: erratum vol. 669, p. 657 (2007)

Simbad objects: 123

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Number of rows : 123
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 LDN 1448 DNe 03 22.5 +30 35           ~ 546 0
2 [KJD2006] ESC 11 PoC 03 24 50.30 +30 23 10.1           ~ 3 1
3 [KJD2006] EC 39 PoC 03 24 53.20 +30 22 35.0           ~ 1 1
4 IRAS 03222+3034 Y*O 03 25 22.32 +30 45 13.9           ~ 164 0
5 [KJD2006] ESC 10 PoC 03 25 22.80 +30 43 19.2           ~ 3 1
6 [KJD2006] EC 38 PoC 03 25 25.60 +30 42 50.1           ~ 1 1
7 JCMTSE J032525.9+304502 Y*O 03 25 25.9 +30 45 03           ~ 61 0
8 JCMTSE J032536.1+304514 Y*O 03 25 36.22 +30 45 15.7           ~ 145 0
9 [SDA2014] West4 Y*O 03 25 38.83 +30 44 06.2           ~ 266 1
10 IRAS F03226+3033 Y*O 03 25 38.83 +30 44 06.2           ~ 371 0
11 [KJD2006] EC 37 PoC 03 25 40.80 +30 09 14.3           ~ 1 1
12 [KJT2007] SMM J032581+30423 cor 03 25 49.0 +30 42 25           ~ 17 1
13 LDN 1451 DNe 03 26.1 +30 10           ~ 60 0
14 [KJD2006] EC 36 PoC 03 26 13.40 +30 29 45.7           ~ 1 1
15 IRAS 03235+3004 Y*O 03 26 37.425 +30 15 28.39           ~ 96 0
16 [KJD2006] EC 35 PoC 03 27 08.30 +30 05 26.3           ~ 1 1
17 [KJD2006] EC 34 PoC 03 27 34.90 +30 11 56.4           ~ 1 1
18 [KJD2006] ESC 9 PoC 03 27 36.60 +30 12 32.8           ~ 3 1
19 NAME LDN 1455 IRS 5 Y*O 03 27 38.255 +30 13 58.57           ~ 53 0
20 NAME LDN 1455 IRS 1 cor 03 27 39.08 +30 13 03.1           ~ 173 0
21 JCMTSE J032739.7+301217 smm 03 27 39.9 +30 12 10           ~ 15 0
22 NAME LDN 1455 IRS 4 cor 03 27 43.23 +30 12 28.9           ~ 81 0
23 2MASS J03274767+3012043 Or* 03 27 47.6828532408 +30 12 04.456916028     19.6     M3.0 115 1
24 [KJD2006] EC 33 PoC 03 27 58.50 +31 26 45.5           ~ 1 1
25 [KJD2006] EC 32 PoC 03 28 27.90 +30 19 32.0           ~ 1 1
26 IRAS 03255+3103 Y*O 03 28 37.06800 +31 13 31.0044           ~ 96 1
27 [HRF2005] 60 Y*O 03 28 39.3 +31 18 27           ~ 15 0
28 [HFR2007] 55 cor 03 28 40.63 +31 17 56.5           ~ 40 1
29 [KJD2006] EC 31 PoC 03 28 42.30 +31 12 21.7           ~ 1 1
30 JCMTSE J032842.4+310614 cor 03 28 42.6 +31 06 10           ~ 15 1
31 [KJD2006] EC 30 PoC 03 28 50.60 +31 09 11.5           ~ 1 1
32 [KJD2006] EC 29 PoC 03 28 51.20 +30 44 36.1           ~ 1 1
33 [KJD2006] ESC 8 PoC 03 28 53.30 +30 44 00.5           ~ 3 1
34 [JCC87] IRAS 2A Y*O 03 28 55.55 +31 14 36.7           ~ 513 3
35 [KJD2006] ESC 7 PoC 03 28 56.00 +31 22 36.4           ~ 4 1
36 [KJD2006] EC 28 PoC 03 28 58.90 +31 22 01.0           ~ 1 1
37 [EYG2006] Bolo 40 cor 03 28 59.63 +31 21 33.9           ~ 26 0
38 [SK2001] 1 Y*O 03 29 00.55 +31 12 00.8           ~ 62 1
39 ASR 114 Y*O 03 29 01.16520 +31 20 24.4140           ~ 79 1
40 V* V512 Per Or* 03 29 03.7578170808 +31 16 03.947525688           M3.5 419 0
41 [KJD2006] EC 27 PoC 03 29 03.80 +30 04 28.1           ~ 1 1
42 [SDA2014] West40 Y*O 03 29 04.06 +31 14 46.5           ~ 68 0
43 ASR 6 Y*O 03 29 06.425 +31 15 34.86           ~ 159 1
44 JCMTSE J032906.9+311725 cor 03 29 07.06 +31 17 25.6           ~ 41 0
45 [LAL96] 213 Y*O 03 29 07.739 +31 21 57.52           ~ 70 0
46 [EYG2006] Bolo 46 cor 03 29 08.90 +31 15 20.8           ~ 25 0
47 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
48 [JCC87] IRAS 4A Y*O 03 29 10.49 +31 13 30.8           ~ 770 1
49 2MASS J03291063+3121469 cor 03 29 10.636 +31 21 46.97           ~ 16 0
50 [JCC87] IRAS 4 FIR 03 29 10.9 +31 13 26           ~ 489 0
51 [KJD2006] SMM J032917+31184 Y*O 03 29 11.3 +31 18 25           ~ 64 0
52 [JCC87] IRAS 4B Y*O 03 29 12.058 +31 13 02.05           ~ 625 0
53 JCMTSE J032914.9+312030 cor 03 29 15.64 +31 20 30.8           ~ 19 0
54 JCMTPP J032917.2+312746 Y*O 03 29 17.17 +31 27 46.5           ~ 43 0
55 [KJD2006] SMM J032930+31251 cor 03 29 18.28 +31 25 06.3           ~ 21 0
56 JCMTSE J032918.7+312312 cor 03 29 19.04 +31 23 13.7           ~ 19 0
57 SSTc2d J032923.9+313320 cor 03 29 23.9 +31 33 20           ~ 14 1
58 [EYG2006] Bolo 58 cor 03 29 25.5 +31 28 18           ~ 68 0
59 [KJD2006] EC 26 PoC 03 29 40.50 +31 37 34.4           ~ 1 1
60 IRAS 03267+3128 cor 03 29 51.82 +31 39 06.0           ~ 58 0
61 [KJD2006] EC 25 PoC 03 30 27.90 +30 26 38.5           ~ 2 1
62 [KJD2006] ESC 6 PoC 03 30 28.70 +30 26 30.2           ~ 3 1
63 IRAS 03282+3035 cor 03 31 20.98 +30 45 30.1           ~ 186 0
64 IRAS 03292+3039 cor 03 32 17.96 +30 49 47.5           ~ 99 0
65 [KJD2006] EC 24 PoC 03 32 21.90 +31 22 02.1           ~ 1 1
66 [KJD2006] ESC 5 PoC 03 32 35.60 +30 58 27.7           ~ 3 1
67 [KJD2006] EC 23 PoC 03 32 38.40 +30 58 15.4           ~ 1 1
68 [KJT2007] SMM 36 cor 03 33 01.9 +31 04 23           ~ 11 0
69 SCOPE G159.19-20.18A smm 03 33 05.8 +31 04 59           ~ 10 0
70 [KJT2007] SMM J033321+31198 cor 03 33 13.4 +31 19 53           ~ 15 0
71 Barnard 1 MoC 03 33 16.3 +31 07 51           ~ 350 0
72 JCMTSE J033315.9+310656 Y*O 03 33 16.44 +31 06 52.5           ~ 45 0
73 JCMTSE J033317.8+310932 cor 03 33 17.85 +31 09 31.9           ~ 140 0
74 [KJD2006] SMM J033335+31075 PoC 03 33 21.3 +31 07 28           ~ 118 0
75 [KJD2006] EC 22 PoC 03 33 29.20 +31 18 14.1           ~ 1 1
76 [KJD2006] EC 21 PoC 03 33 31.00 +31 01 11.3           ~ 1 1
77 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1553 0
78 [KJD2006] EC 20 PoC 03 36 26.10 +31 11 12.6           ~ 1 1
79 [KJD2006] ESC 4 PoC 03 36 28.90 +31 11 13.1           ~ 3 1
80 [KJD2006] EC 19 PoC 03 37 57.60 +31 25 20.6           ~ 1 1
81 [KJD2006] EC 18 PoC 03 39 26.70 +31 21 44.6           ~ 1 1
82 [KJD2006] ESC 3 PoC 03 39 27.40 +31 21 08.6           ~ 3 1
83 [KJD2006] EC 17 PoC 03 40 01.10 +31 31 10.8           ~ 1 1
84 [KJD2006] EC 16 PoC 03 40 17.50 +31 59 50.6           ~ 1 1
85 [KJD2006] EC 15 PoC 03 40 26.60 +31 43 13.5           ~ 1 1
86 [KJD2006] EC 14 PoC 03 40 37.30 +31 14 12.6           ~ 1 1
87 [KJD2006] EC 13 PoC 03 40 45.20 +31 48 47.0           ~ 1 1
88 [KJD2006] EC 12 PoC 03 41 34.70 +31 43 21.4           ~ 1 1
89 [KJD2006] EC 11 PoC 03 41 48.30 +31 57 43.0           ~ 1 1
90 [KJD2006] EC 10 PoC 03 42 01.40 +31 48 04.8           ~ 1 1
91 * o Per * 03 42 22.6459308614 +33 57 54.093701142 4.13 4.912 4.972     B0.5V 315 0
92 [KJD2006] EC 9 PoC 03 42 57.80 +31 48 16.5           ~ 1 1
93 [KJD2006] EC 8 PoC 03 43 08.70 +31 54 33.6           ~ 1 1
94 [KJD2006] EC 7 PoC 03 43 25.50 +31 41 24.2           ~ 1 1
95 NAME Per 6 Aggregate PoC 03 43 38.30 +31 43 51.3           ~ 4 1
96 JCMTSE J034338.3+320308 cor 03 43 38.3 +32 03 04           ~ 17 0
97 [KJT2007] 27 cor 03 43 44.0 +32 02 50           ~ 20 0
98 [KJD2006] SMM J034376+32031 mm 03 43 45.80 +32 03 10.4           ~ 2 0
99 SCOPE G160.44-17.98 smm 03 43 51 +32 03.4           ~ 17 1
100 [KJD2006] EC 5 PoC 03 43 54.20 +31 58 53.4           ~ 1 1
101 HH 211 Y*O 03 43 56.52 +32 00 52.8           ~ 414 0
102 NAME IC 348 MMS cor 03 43 56.84 +32 03 04.7           ~ 87 1
103 [KJD2006] ESC 2 PoC 03 43 57.10 +31 59 28.7           ~ 4 1
104 [KJT2007] SMM J034396+32040 cor 03 43 57.9 +32 04 02           ~ 21 0
105 [KJT2007] SMM J034401+32019 cor 03 44 01.2 +32 01 56           ~ 20 1
106 [KJT2007] SMM J034404+32024 cor 03 44 02.9 +32 02 26           ~ 18 0
107 JCMTSE J034406.1+320215 cor 03 44 06.2 +32 02 11           ~ 16 0
108 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
109 [KJT2007] SMM J034461+31588 cor 03 44 36.9 +31 58 47           ~ 16 0
110 [KJD2006] EC 4 PoC 03 44 42.40 +32 15 09.2           ~ 1 1
111 SSTc2d J034443.9+320136 cor 03 44 43.893 +32 01 37.37           ~ 24 1
112 [KJD2006] EC 3 PoC 03 44 47.10 +31 40 31.6           ~ 1 1
113 [KJD2006] EC 2 PoC 03 47 01.80 +32 42 34.9           ~ 1 1
114 NAME [BM89] B5 DNe 03 47 38.3 +32 52 43           ~ 224 0
115 [KJT2007] SMM 3 smm 03 47 39.1 +32 52 18           ~ 14 0
116 IRAS 03445+3242 Y*O 03 47 41.603 +32 51 43.79           ~ 215 0
117 [KJD2006] EC 1 PoC 03 47 43.80 +32 52 08.0           ~ 1 1
118 [KJD2006] ESC 1 PoC 03 47 45.30 +32 52 43.4           ~ 3 1
119 LDN 1471 DNe 03 48.0 +32 54           ~ 349 0
120 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
121 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1227 1
122 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
123 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1

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