2009ApJ...707.1824N

Query : 2009ApJ...707.1824N

2009ApJ...707.1824N - Astrophys. J., 707, 1824-1835 (2009/December-3)

BLAST: the mass function, lifetimes, and properties of intermediate mass cores from a 50 deg2 submillimeter galactic survey in Vela (l∼265°).

NETTERFIELD C.B., ADE P.A.R., BOCK J.J., CHAPIN E.L., DEVLIN M.J., GRIFFIN M., GUNDERSEN J.O., HALPERN M., HARGRAVE P.C., HUGHES D.H., KLEIN J., MARSDEN G., MARTIN P.G., MAUSKOPF P., OLMI L., PASCALE E., PATANCHON G., REX M., ROY A., SCOTT D., SEMISCH C., THOMAS N., TRUCH M.D.P., TUCKER C., TUCKER G.S., VIERO M.P. and WIEBE D.V.

Abstract (from CDS):

We present first results from an unbiased 50 deg2 submillimeter Galactic survey at 250, 350, and 500 µm from the 2006 flight of the Balloon-borne Large Aperture Submillimeter Telescope. The map has resolution ranging from 36'' to 60'' in the three submillimeter bands spanning the thermal emission peak of cold starless cores. We determine the temperature, luminosity, and mass of more than 1000 compact sources in a range of evolutionary stages and an unbiased statistical characterization of the population. From comparison with C18O data, we find the dust opacity per gas mass, κr= 0.16 cm2/g at 250 µm, for cold clumps. We find that 2% of the mass of the molecular gas over this diverse region is in cores colder than 14 K, and that the mass function for these cold cores is consistent with a power law with index α = -3.22±0.14 over the mass range 14 M☉< M < 80 M☉. Additionally, we infer a mass-dependent cold core lifetime of tc(M) = 4x106(M/20 M☉)–0.9 yr–longer than what has been found in previous surveys of either low or high-mass cores, and significantly longer than free fall or likely turbulent decay times. This implies some form of non-thermal support for cold cores during this early stage of star formation.

Abstract Copyright: ∼

Journal keyword(s): ISM: clouds - stars: formation - submillimeter

VizieR on-line data: <Available at CDS (J/ApJ/707/1824): table1.dat table2.dat>

Nomenclature: Tables 1-2: BLAST JHHMMSS+DDMMSS N=1282.

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 154

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Number of rows : 154
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 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
2 V* VY CMa s*r 07 22 58.3261352189 -25 46 03.194390594 12.01 10.068 8.691 7.938   M5Iae 1169 0
3 GUM 15 HII 08 43 52.5 -41 14 39           ~ 36 2
4 BLAST J084441-431144 smm 08 44 41.3 -43 11 44           ~ 2 0
5 BLAST J084508-433755 smm 08 45 08.5 -43 37 56           ~ 2 0
6 BLAST J084509-434544 smm 08 45 09.3 -43 45 45           ~ 2 0
7 BLAST J084531-435006 cor 08 45 31.8 -43 50 06           ~ 3 0
8 BLAST J084535-435156 cor 08 45 35.2 -43 51 57           ~ 3 0
9 BLAST J084538-435507 smm 08 45 38.0 -43 55 07           ~ 2 0
10 BLAST J084539-435133 cor 08 45 39.5 -43 51 34           ~ 2 0
11 BLAST J084540-430400 smm 08 45 40.1 -43 04 00           ~ 2 0
12 BLAST J084542-432721 smm 08 45 42.6 -43 27 22           ~ 2 0
13 BLAST J084546-432458 smm 08 45 46.6 -43 24 59           ~ 3 0
14 BLAST J084548-435334 smm 08 45 48.6 -43 53 34           ~ 2 0
15 IRAS 08440-4253 cor 08 45 48.7 -43 04 54           ~ 3 0
16 BLAST J084552-432152 smm 08 45 52.2 -43 21 53           ~ 3 0
17 IRAS 08442-4328 cor 08 46 06.7 -43 39 56     12.22     ~ 15 0
18 BLAST J084612-432337 smm 08 46 12.7 -43 23 38           ~ 3 0
19 BLAST J084617-424907 smm 08 46 17.5 -42 49 07           ~ 2 0
20 IRAS 08445-4447 cor 08 46 18.633 -44 58 41.56           ~ 3 0
21 IRAS 08445-4420 cor 08 46 20.5 -44 31 22           ~ 9 0
22 BLAST J084621-424758 smm 08 46 21.2 -42 47 59           ~ 2 0
23 BLAST J084625-424709 smm 08 46 25.4 -42 47 09           ~ 2 0
24 IRAS 08446-4331 cor 08 46 26.3 -43 42 27           ~ 5 0
25 BLAST J084626-424646 cor 08 46 26.4 -42 46 46           ~ 2 0
26 IRAS 08446-4235 cor 08 46 29.8 -42 46 13           ~ 3 0
27 IRAS 08447-4309 cor 08 46 33.2 -43 21 01           ~ 5 0
28 IRAS 08448-4343 cor 08 46 33.8 -43 54 33           ~ 73 1
29 BLAST J084635-424522 smm 08 46 35.4 -42 45 22           ~ 2 0
30 BLAST J084637-432245 smm 08 46 37.9 -43 22 45           ~ 3 0
31 IRAS 08448-4233 cor 08 46 39.4 -42 44 42           ~ 3 0
32 BLAST J084643-424400 smm 08 46 43.1 -42 44 00           ~ 2 0
33 BLAST J084647-424323 smm 08 46 47.2 -42 43 24           ~ 2 0
34 BLAST J084648-435257 smm 08 46 48.6 -43 52 58           ~ 3 0
35 BLAST J084654-431626 smm 08 46 54.3 -43 16 26           ~ 3 0
36 BLAST J084654-435253 smm 08 46 54.9 -43 52 53           ~ 2 0
37 BLAST J084710-432245 smm 08 47 10.9 -43 22 46           ~ 2 0
38 BLAST J084718-432804 smm 08 47 18.5 -43 28 05           ~ 3 0
39 BLAST J084724-434859 smm 08 47 24.9 -43 48 59           ~ 2 0
40 BLAST J084727-432807 smm 08 47 27.4 -43 28 08           ~ 2 0
41 BLAST J084728-432706 cor 08 47 28.3 -43 27 06           ~ 2 0
42 BLAST J084731-435344 smm 08 47 31.0 -43 53 44           ~ 3 0
43 BLAST J084734-432654 smm 08 47 34.1 -43 26 55           ~ 2 0
44 BLAST J084735-432829 smm 08 47 35.4 -43 28 29           ~ 3 0
45 IRAS 08458-4332 IR 08 47 36.95 -43 42 55.3           ~ 7 0
46 BLAST J084737-434828 smm 08 47 37.3 -43 48 29           ~ 2 0
47 BLAST J084738-434931 smm 08 47 38.3 -43 49 32           ~ 3 0
48 BLAST J084739-432623 smm 08 47 39.2 -43 26 24           ~ 3 0
49 BLAST J084742-434347 cor 08 47 42.3 -43 43 48           ~ 4 0
50 BLAST J084744-435120 smm 08 47 44.2 -43 51 20           ~ 2 0
51 BLAST J084744-435045 cor 08 47 45.0 -43 50 46           ~ 3 0
52 BLAST J084745-432637 smm 08 47 45.2 -43 26 38           ~ 2 0
53 BLAST J084746-432548 cor 08 47 46.6 -43 25 49           ~ 2 0
54 BLAST J084749-434810 smm 08 47 50.0 -43 48 10           ~ 3 0
55 BLAST J084751-432522 cor 08 47 51.1 -43 25 23           ~ 2 0
56 BLAST J084754-432748 cor 08 47 54.8 -43 27 48           ~ 3 0
57 BLAST J084759-433942 cor 08 47 59.2 -43 39 42           ~ 3 0
58 BLAST J084801-435108 smm 08 48 01.3 -43 51 08           ~ 3 0
59 BLAST J084803-433051 smm 08 48 03.9 -43 30 51           ~ 3 0
60 IRAS 08463-4343 cor 08 48 05.4 -43 54 15           ~ 6 0
61 BLAST J084813-423730 smm 08 48 13.5 -42 37 31           ~ 3 0
62 BLAST J084813-423405 smm 08 48 13.5 -42 34 06           ~ 2 0
63 IRAS 08464-4335 cor 08 48 15.5 -43 47 15           ~ 6 0
64 BLAST J084819-433247 smm 08 48 19.4 -43 32 47           ~ 2 0
65 BLAST J084820-433443 smm 08 48 20.1 -43 34 43           ~ 2 0
66 BLAST J084822-432504 smm 08 48 22.3 -43 25 04           ~ 2 0
67 BLAST J084822-433152 smm 08 48 22.5 -43 31 53           ~ 3 0
68 BLAST J084823-433536 smm 08 48 23.0 -43 35 37           ~ 2 0
69 BLAST J084823-433858 smm 08 48 23.8 -43 38 59           ~ 3 0
70 BLAST J084825-431714 smm 08 48 25.7 -43 17 15           ~ 2 0
71 BLAST J084829-433122 smm 08 48 29.4 -43 31 22           ~ 2 0
72 IRAS 08466-4224 cor 08 48 30.0 -42 35 54           ~ 6 0
73 BLAST J084832-425333 smm 08 48 32.7 -42 53 34           ~ 2 0
74 BLAST J084833-433056 smm 08 48 33.9 -43 30 56           ~ 3 0
75 BLAST J084834-435455 smm 08 48 34.2 -43 54 55           ~ 3 0
76 BLAST J084834-432430 smm 08 48 34.2 -43 24 31           ~ 3 0
77 BLAST J084834-424515 smm 08 48 34.9 -42 45 16           ~ 2 0
78 BLAST J084835-424801 smm 08 48 35.5 -42 48 02           ~ 2 0
79 BLAST J084837-431651 cor 08 48 37.3 -43 16 52           ~ 2 0
80 BLAST J084840-433153 smm 08 48 40.6 -43 31 54           ~ 2 0
81 BLAST J084842-431735 smm 08 48 42.7 -43 17 36           ~ 3 0
82 BLAST J084843-431618 smm 08 48 43.6 -43 16 19           ~ 2 0
83 BLAST J084844-433733 smm 08 48 44.4 -43 37 34           ~ 3 0
84 BLAST J084844-424455 smm 08 48 44.7 -42 44 56           ~ 2 0
85 BLAST J084847-425423 smm 08 48 47.3 -42 54 24           ~ 3 0
86 IRAS 08470-4321 cor 08 48 48.2 -43 32 25           ~ 47 0
87 BLAST J084852-433057 smm 08 48 52.0 -43 30 58           ~ 2 0
88 BLAST J084857-433818 smm 08 48 57.7 -43 38 18           ~ 2 0
89 BLAST J084859-431339 smm 08 48 59.7 -43 13 40           ~ 2 0
90 IRAS 08472-4326A cor 08 49 02.9 -43 38 03           ~ 6 0
91 BLAST J084906-432300 smm 08 49 06.5 -43 23 00           ~ 2 0
92 BLAST J084910-441636 smm 08 49 10.1 -44 16 37           ~ 3 0
93 BLAST J084912-431353 smm 08 49 12.2 -43 13 54           ~ 3 0
94 IRAS 08474-4325 cor 08 49 13.272 -43 36 29.60           ~ 8 0
95 BLAST J084920-440152 smm 08 49 20.5 -44 01 52           ~ 2 0
96 BLAST J084923-431312 smm 08 49 23.4 -43 13 13           ~ 2 0
97 IRAS 08476-4306 cor 08 49 25.9 -43 17 10           ~ 28 0
98 BLAST J084926-431220 smm 08 49 26.8 -43 12 21           ~ 2 0
99 BLAST J084928-440426 smm 08 49 28.1 -44 04 27           ~ 3 0
100 BLAST J084929-431128 smm 08 49 29.5 -43 11 29           ~ 2 0
101 IRAS 08477-4359 cor 08 49 32.3 -44 10 46           ~ 21 0
102 BLAST J084935-441147 cor 08 49 35.2 -44 11 48           ~ 2 0
103 BLAST J084936-431147 smm 08 49 36.8 -43 11 47           ~ 2 0
104 BLAST J084951-432235 smm 08 49 51.8 -43 22 36           ~ 2 0
105 BLAST J084952-433808 smm 08 49 52.5 -43 38 08           ~ 3 0
106 BLAST J084958-432253 cor 08 49 58.6 -43 22 54           ~ 2 0
107 BLAST J085007-431620 cor 08 50 07.6 -43 16 21           ~ 2 0
108 BLAST J085010-442625 cor 08 50 10.7 -44 26 26           ~ 2 0
109 BLAST J085010-431704 cor 08 50 10.7 -43 17 05           ~ 2 0
110 IRAS 08485-4414 PN? 08 50 15.89472 -44 25 58.4760           ~ 7 1
111 BLAST J085017-442516 cor 08 50 17.0 -44 25 17           ~ 2 0
112 BLAST J085025-432244 smm 08 50 25.6 -43 22 45           ~ 2 0
113 BLAST J085033-433318 smm 08 50 33.9 -43 33 19           ~ 3 0
114 BLAST J085054-434234 smm 08 50 54.6 -43 42 34           ~ 2 0
115 IRAS 08495-4238 cor 08 51 23.5 -42 50 07           ~ 3 0
116 BLAST J085123-424607 smm 08 51 23.6 -42 46 08           ~ 2 0
117 IRAS 08496-4320 cor 08 51 27.1 -43 31 36           ~ 3 0
118 BLAST J085127-424914 smm 08 51 27.2 -42 49 14           ~ 2 0
119 BLAST J085135-430339 smm 08 51 35.6 -43 03 40           ~ 2 0
120 BLAST J085144-434939 smm 08 51 44.3 -43 49 39           ~ 2 0
121 BLAST J085147-424819 cor 08 51 47.5 -42 48 19           ~ 2 0
122 IRAS 08500-4254 cor 08 51 49.2269863104 -43 05 30.585608412           ~ 10 0
123 BLAST J085152-430238 smm 08 51 52.2 -43 02 38           ~ 2 0
124 BLAST J085152-430353 smm 08 51 52.6 -43 03 53           ~ 2 0
125 BLAST J085153-424834 cor 08 51 53.4 -42 48 35           ~ 2 0
126 BLAST J085159-424907 smm 08 51 59.4 -42 49 07           ~ 2 0
127 BLAST J085232-430202 smm 08 52 32.3 -43 02 03           ~ 2 0
128 IRAS 08507-4256 cor 08 52 32.7 -43 07 18           ~ 3 0
129 BLAST J085234-430059 smm 08 52 34.2 -43 00 59           ~ 2 0
130 BLAST J085238-430516 smm 08 52 38.3 -43 05 17           ~ 2 0
131 BLAST J085239-430631 smm 08 52 40.0 -43 06 31           ~ 2 0
132 IRAS 08509-4325 cor 08 52 41.3 -43 36 58           ~ 6 0
133 BLAST J085241-431129 smm 08 52 41.5 -43 11 29           ~ 2 0
134 BLAST J085242-425655 smm 08 52 42.4 -42 56 55           ~ 2 0
135 BLAST J085243-425803 smm 08 52 44.0 -42 58 03           ~ 2 0
136 BLAST J085248-431010 smm 08 52 48.4 -43 10 10           ~ 2 0
137 BLAST J085254-430331 smm 08 52 54.9 -43 03 31           ~ 2 0
138 NAME VELA MOL RIDGE MoC 08 53 -45.0           ~ 178 0
139 BLAST J085305-433329 smm 08 53 05.6 -43 33 29           ~ 2 0
140 BLAST J085310-430200 smm 08 53 10.5 -43 02 00           ~ 2 0
141 BLAST J085313-430120 smm 08 53 13.4 -43 01 21           ~ 2 0
142 BLAST J085318-430714 smm 08 53 18.1 -43 07 15           ~ 2 0
143 BLAST J085319-430047 smm 08 53 19.4 -43 00 48           ~ 2 0
144 BLAST J085320-430805 smm 08 53 20.7 -43 08 05           ~ 2 0
145 BLAST J085322-430704 smm 08 53 22.8 -43 07 04           ~ 2 0
146 [YMS99a] Cloud 28 MoC 08 54 36.1 -46 00 35           ~ 2 0
147 RCW 36 HII 08 59 00.9 -43 44 10     15.20     ~ 161 0
148 RCW 38 SFR 08 59 05.50 -47 30 39.4           ~ 327 2
149 [YMS99a] Cloud 25 MoC 08 59 56.1 -43 53 02           ~ 2 0
150 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
151 NAME the Pipe Nebula DNe 17 30 -25.0           ~ 442 1
152 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1
153 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
154 NAME Vela Field reg ~ ~           ~ 200 0

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