2005A&A...440..151H


C.D.S. - SIMBAD4 rel 1.7 - 2021.03.02CET02:22:04

2005A&A...440..151H - Astronomy and Astrophysics, volume 440, 151-161 (2005/9-2)

Star formation in Perseus. Clusters, filaments and the conditions for star formation.

HATCHELL J., RICHER J.S., FULLER G.A., QUALTROUGH C.J., LADD E.F. and CHANDLER C.J.

Abstract (from CDS):

We present a complete survey of current star formation in the Perseus molecular cloud, made at 850 and 450µm with SCUBA at the JCMT. Covering 3 deg2, this submillimetre continuum survey for protostellar activity is second in size only to that of ρ Ophiuchus (Johnstone et al., 2004ApJ...611L..45J). Complete above 0.4M (5σ detection in a 14'' beam), we detect a total of 91 protostars and prestellar cores. Of these, 80% lie in clusters, representative of star formation across the Galaxy. Two of the groups of cores are associated with the young stellar clusters IC348 and NGC 1333, and are consistent with a steady or reduced star formation rate in the last 0.5Myr, but not an increasing one. In Perseus, 40-60% of cores are in small clusters (<50M) and isolated objects, much more than the 10% suggested from infrared studies. Complementing the dust continuum, we present a C18O map of the whole cloud at 1' resolution. The gas and dust show filamentary structure of the dense gas on large and small scales, with the high column density filaments breaking up into clusters of cores. The filament mass per unit length is 5-11M per 0.1pc. Given these filament masses, there is no requirement for substantial large scale flows along or onto the filaments in order to gather sufficient material for star formation. We find that the probability of finding a submillimetre core is a strongly increasing function of column density, as measured by C18O integrated intensity, P(core)∝I3.0. This power law relation holds down to low column density, suggesting that there is no Av threshold for star formation in Perseus, unless all the low-Av submm cores can be demonstrated to be older protostars which have begun to lose their natal molecular cloud.

Abstract Copyright:

Journal keyword(s): stars: formation - submillimeter - dust, extinction - ISM: molecules - ISM: clouds - ISM: structure

VizieR on-line data: <Available at CDS (J/A+A/440/151): tablea1.dat refs.dat>

Nomenclature: Table A1: [HRF2005] NN (Nos 1-91).

CDS comments: Paragraph 5.1 IRAS 03422+3256 is a probable misprint for IRAS 03422+3156.

Simbad objects: 113

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Number of rows : 113

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 LDN 1448 DNe 03 22.5 +30 35           ~ 475 0
2 IRAS 03222+3034 Y*O 03 25 22.32 +30 45 13.9           ~ 126 0
3 JCMTSE J032525.9+304502 Y*O 03 25 25.9 +30 45 03           ~ 49 0
4 [HRF2005] 34 smm 03 25 30.8 +30 45 07           ~ 1 0
5 LDN 1448NW Y*O 03 25 35.66 +30 45 34.2           ~ 63 0
6 JCMTSE J032536.1+304514 Y*O 03 25 36.22 +30 45 15.7           ~ 107 0
7 IRAS 03225+3034 IR 03 25 36.49 +30 45 22.2           ~ 152 1
8 SSTc2d J032536.4+304522 Y*O 03 25 36.49 +30 45 22.2           ~ 188 1
9 LDN 1448NA smm 03 25 36.49 +30 45 22.2           ~ 174 1
10 [SDA2014] West4 Y*O 03 25 38.83 +30 44 06.2           ~ 244 1
11 IRAS F03226+3033 Y*O 03 25 38.83 +30 44 06.2           ~ 313 0
12 [KJT2007] SMM J032581+30423 cor 03 25 49.0 +30 42 25           ~ 13 1
13 [EYG2006] Bolo 14 cor 03 25 50.6 +30 42 01           ~ 6 0
14 [HFR2007] 86 smm 03 26 30.9 +30 32 28           ~ 2 0
15 IRAS 03235+3004 Y*O 03 26 37.425 +30 15 28.39           ~ 71 0
16 NAME LDN 1455 IRS 5 Y*O 03 27 38.255 +30 13 58.57           ~ 44 0
17 NAME LDN 1455 IRS 1 cor 03 27 39.08 +30 13 03.1           ~ 144 0
18 [KJT2007] SMM J032766+30122 smm 03 27 39.9 +30 12 10           ~ 10 0
19 NAME LDN 1455 IRS 4 cor 03 27 43.23 +30 12 28.9           ~ 64 0
20 NAME LDN 1455 smm 2 smm 03 27 46.6 +30 12 05           ~ 1 0
21 2MASS J03274767+3012043 Y*O 03 27 47.6826386762 +30 12 04.459144041     19.6     ~ 96 1
22 LDN 1455 DNe 03 28 00.6480 +30 07 58.800           ~ 171 1
23 [HFR2007] 85 smm 03 28 32.5 +31 00 53           ~ 2 0
24 2MASS J03283258+3111040 cor 03 28 32.581 +31 11 04.10           ~ 43 0
25 [EYG2006] Bolo 28 cor 03 28 34.53 +31 07 05.5           ~ 34 0
26 IRAS 03255+3103 Y*O 03 28 37.06800 +31 13 31.0044           ~ 81 1
27 [HRF2005] 73 smm 03 28 38.8 +31 19 15           ~ 1 0
28 [EYG2006] Bolo 30 Y*O 03 28 39.10 +31 06 01.7           ~ 34 0
29 [HRF2005] 60 Y*O 03 28 39.3 +31 18 27           ~ 12 0
30 [HFR2007] 55 cor 03 28 40.63 +31 17 56.5           ~ 38 1
31 [KJT2007] SMM J032871+31062 cor 03 28 42.6 +31 06 10           ~ 14 1
32 [JCC87] IRAS 2A Y*O 03 28 55.55 +31 14 36.7           ~ 407 3
33 ASR 64 Y*O 03 28 57.11 +31 19 11.9           M7.3 16 0
34 [EYG2006] Bolo 40 cor 03 28 59.63 +31 21 33.9           ~ 25 0
35 [SK2001] 1 Y*O 03 29 00.55 +31 12 00.8           ~ 53 1
36 ASR 114 Y*O 03 29 01.16520 +31 20 24.4140           ~ 72 1
37 NAME HH 7-11 MMS 2 smm 03 29 03.056 +31 15 51.67           ~ 71 0
38 V* V512 Per Or* 03 29 03.7567945196 +31 16 03.959183877           ~ 356 0
39 [SDA2014] West40 Y*O 03 29 04.06 +31 14 46.5           ~ 52 0
40 [HFR2007] 53 smm 03 29 04.75 +31 20 59.0           ~ 11 0
41 [KJT2007] SMM J032909+31221 smm 03 29 05.64 +31 22 15.5           ~ 10 0
42 ASR 6 Y*O 03 29 06.425 +31 15 34.86           ~ 155 1
43 JCMTSE J032906.9+311725 cor 03 29 07.06 +31 17 25.6           ~ 32 0
44 [LAL96] 213 Y*O 03 29 07.739 +31 21 57.52           ~ 50 0
45 [EYG2006] Bolo 46 cor 03 29 08.90 +31 15 20.8           ~ 20 0
46 [JCC87] IRAS 4A Y*O 03 29 10.49 +31 13 30.8           ~ 623 1
47 2MASS J03291063+3121469 cor 03 29 10.636 +31 21 46.97           ~ 15 0
48 [JCC87] IRAS 4 FIR 03 29 10.9 +31 13 26           ~ 469 0
49 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1252 1
50 [KJD2006] SMM J032917+31184 Y*O 03 29 11.3 +31 18 25           ~ 55 0
51 [JCC87] IRAS 4B Y*O 03 29 12.058 +31 13 02.05           ~ 568 0
52 [JCC87] IRAS 4C Y*O 03 29 13.54 +31 13 58.2           ~ 88 1
53 JCMTSE J032914.9+312030 cor 03 29 15.64 +31 20 30.8           ~ 18 0
54 [EYG2006] Bolo 51 cor 03 29 16.5 +31 12 35           ~ 11 0
55 SSTYSV J032917.11+312745.5 cor 03 29 17.17 +31 27 46.5           ~ 37 0
56 [KJD2006] SMM J032930+31251 cor 03 29 18.28 +31 25 06.3           ~ 15 0
57 2MASS J03291844+3111304 cor 03 29 18.4029850452 +31 11 30.582121006           ~ 15 0
58 JCMTSE J032918.7+312312 cor 03 29 19.04 +31 23 13.7           ~ 17 0
59 2MASS J03292003+3124076 Y*O 03 29 20.036 +31 24 07.65           ~ 28 1
60 [EYG2006] Bolo 56 cor 03 29 23.3 +31 36 08           ~ 8 0
61 SSTc2d J032923.5+313330 Y*O 03 29 23.47 +31 33 29.5           ~ 36 1
62 [KJT2007] SMM J032939+31333 cor 03 29 23.9 +31 33 20           ~ 12 1
63 [KJT2007] SMM J032942+31282 cor 03 29 25.5 +31 28 18           ~ 55 0
64 IRAS 03271+3013 cor 03 30 15.159 +30 23 49.38           ~ 60 0
65 IRAS 03272+3013 IR 03 30.3 +30 23           ~ 5 0
66 IRAS 03282+3035 cor 03 31 20.98 +30 45 30.1           ~ 162 0
67 [HFR2007] 88 smm 03 31 31.6 +30 43 32           ~ 5 0
68 IRAS 03292+3039 cor 03 32 17.96 +30 49 47.5           ~ 62 0
69 [HRF2005] 87 smm 03 32 21.5 +31 05 08           ~ 1 0
70 [HRF2005] 84 smm 03 32 21.9 +31 04 56           ~ 1 0
71 [EYG2006] Bolo 67 cor 03 32 26.1 +30 59 00           ~ 8 0
72 [HFR2007] 83 smm 03 32 48.9 +31 09 40           ~ 2 0
73 [HRF2005] 11 smm 03 33 00.3 +31 04 17           ~ 1 0
74 [KJT2007] SMM 36 cor 03 33 01.9 +31 04 23           ~ 11 0
75 [HRF2005] 9 smm 03 33 03.0 +31 04 38           ~ 1 0
76 [EYG2006] Bolo 75 cor 03 33 04.0 +31 04 56           ~ 6 0
77 [KJT2007] SMM 34 smm 03 33 05.8 +31 04 59           ~ 9 0
78 [KJT2007] SMM J033321+31198 cor 03 33 13.4 +31 19 53           ~ 15 0
79 Barnard 1 MoC 03 33 16.3 +31 07 51           ~ 271 0
80 SSTc2d J033316.4+310653 cor 03 33 16.44 +31 06 52.5           ~ 36 0
81 2MASS J03331667+3107548 Y*O 03 33 16.68 +31 07 54.9           ~ 104 2
82 JCMTSE J033317.8+310932 cor 03 33 17.85 +31 09 31.9           ~ 80 0
83 [HKM99] B1-b cor 03 33 20.32 +31 07 21.5           ~ 171 0
84 [HRF2005] 3 PoC 03 33 21.3 +31 07 27           ~ 65 0
85 [KJD2006] SMM J033335+31075 PoC 03 33 21.3 +31 07 28           ~ 84 0
86 SSTc2d J033327.2+310710 cor 03 33 27.29 +31 07 10.2           ~ 45 0
87 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1118 0
88 Ass Per OB 2 As* 03 42.2 +33 26           ~ 313 0
89 [KJD2006] SMM J034363+32032 cor 03 43 38.3 +32 03 04           ~ 14 0
90 [HFR2007] 24 smm 03 43 42.50 +32 03 23.0           ~ 6 0
91 [KJT2007] 27 cor 03 43 44.0 +32 02 50           ~ 19 0
92 2MASS J03435056+3203180 Y*O 03 43 50.565 +32 03 18.00           M8.75 24 1
93 HH 211 cor 03 43 56.52 +32 00 52.8           ~ 302 0
94 NAME IC 348 MMS cor 03 43 56.84 +32 03 04.7           ~ 67 1
95 [KJT2007] SMM J034396+32040 cor 03 43 57.9 +32 04 02           ~ 20 0
96 [KJT2007] SMM J034401+32019 cor 03 44 01.2 +32 01 56           ~ 19 1
97 [HFR2007] 21 smm 03 44 02.30 +32 02 48.0           ~ 6 0
98 [KJT2007] SMM J034404+32024 cor 03 44 02.9 +32 02 26           ~ 18 0
99 [MLL2007] MMP 7 smm 03 44 05.40 +32 01 50.0           ~ 4 0
100 JCMTSF J034406.1+320215 cor 03 44 06.2 +32 02 11           ~ 13 0
101 IC 348 OpC 03 44 34 +32 09.8           ~ 1245 1
102 [KJT2007] SMM J034461+31588 cor 03 44 36.9 +31 58 47           ~ 16 0
103 SSTc2d J034443.9+320136 cor 03 44 43.893 +32 01 37.37           ~ 24 1
104 [KJT2007] SMM J034481+32005 cor 03 44 48.9 +32 00 29           ~ 17 0
105 JCMTSF J034516.5+320449 cor 03 45 16.80 +32 04 46.4           ~ 12 0
106 IRAS 03422+3156 IR 03 45 20.7 +32 05 54           ~ 4 0
107 NAME [BM89] B5 DNe 03 47 38.3 +32 52 43           ~ 221 0
108 [KJT2007] SMM 3 smm 03 47 39.1 +32 52 18           ~ 10 0
109 IRAS 03445+3242 Y*O 03 47 41.603 +32 51 43.79           ~ 176 0
110 LDN 1471 DNe 03 48.0 +32 54           ~ 286 0
111 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1246 0
112 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3642 0
113 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3133 1

    Equat.    Gal    SGal    Ecl

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2021.03.02-02:22:04

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