2012ApJ...758L..29G

Query : 2012ApJ...758L..29G

2012ApJ...758L..29G - Astrophys. J., 758, L29 (2012/October-3)

There are no starless massive proto-clusters in the first quadrant of the Galaxy.

GINSBURG A., BRESSERT E., BALLY J. and BATTERSBY C.

Abstract (from CDS):

We search the λ = 1.1 mm Bolocam Galactic Plane Survey for clumps containing sufficient mass to form ∼104 M☉ star clusters. Eighteen candidate massive proto-clusters are identified in the first Galactic quadrant outside of the central kiloparsec. This sample is complete to clumps with mass Mclump> 104 M☉ and radius r ≲ 2.5 pc. The overall Galactic massive cluster formation rate is CFR(Mcluster> 104) ≲ 5 M/yr, which is in agreement with the rates inferred from Galactic open clusters and M31 massive clusters. We find that all massive proto-clusters in the first quadrant are actively forming massive stars and place an upper limit of τstarless< 0.5 Myr on the lifetime of the starless phase of massive cluster formation. If massive clusters go through a starless phase with all of their mass in a single clump, the lifetime of this phase is very short.

Abstract Copyright: ∼

Journal keyword(s): galaxies: star clusters: general - ISM: clouds - open clusters and associations: general - stars: formation

Simbad objects: 29

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Number of rows : 29
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12643 1
2 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2331 0
3 Cl Westerlund 2 OpC 10 23 58.1 -57 45 49           ~ 356 0
4 Cl Trumpler 14 OpC 10 43 56.6 -59 33 11   5.70 5.5     ~ 509 0
5 NGC 3603 OpC 11 15 10.8 -61 15 32           ~ 1065 1
6 Cl Westerlund 1 Cl* 16 47 02.4 -45 51 07           ~ 566 0
7 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14407 0
8 GAL 010.472+00.026 mm 18 08 38 -19 51.9           ~ 3 0
9 IRAS 18097-1825A cor 18 12 39.72 -18 24 20.5           ~ 64 0
10 GAL 012.627-00.016 mm 18 13 11 -17 59.8           ~ 1 0
11 SNR G012.8-00.2 SFR 18 14 14.0 -17 55 50           ~ 256 0
12 GAL 019.474+00.171 mm 18 25 55 -11 52.5           ~ 1 0
13 AGAL G019.609-00.234 cor 18 27 38 -11 56.6           ~ 27 0
14 OH 020.1-00.1 SFR 18 28 10.37 -11 28 49.8           ~ 111 0
15 RAFGL 5491 mul 18 28 10.7 -11 29 01           ~ 45 0
16 RRF 159 cor 18 36 12.4 -07 12 14           ~ 41 0
17 GAL 029.955-00.018 mm 18 46 04 -02 39.4           ~ 1 0
18 IRAS 18449-0115 cor 18 47 34.27 -01 12 43.2           ~ 388 0
19 AGAL G030.703-00.067 cor 18 47 36.6 -02 00 54           ~ 66 0
20 OH 031.0+00.0 OH* 18 47 41.13768 -01 45 11.4048           O-rich 143 1
21 AGAL G030.818-00.056 cor 18 47 47.0 -01 54 28           ~ 164 0
22 GAL 032.798+00.193 mm 18 50 30 -00 01.9           ~ 1 0
23 [CUS2014] G034.2572+0.1535 cor 18 53 18.6449 +01 15 01.574           ~ 38 0
24 BGPS G043.169+00.009 cor 19 10 14.2145 +09 06 17.697           ~ 29 0
25 W 49 SFR 19 10 20 +09 07.7           ~ 575 1
26 GAL 043.164-00.031 mm 19 10 22 +09 04.9           ~ 1 0
27 [WBN74] W 51 IRS 2 PCG 19 23 39.93 +14 31 09.4           ~ 292 0
28 NAME W 51 Main reg 19 23 43.8 +14 30 37           ~ 143 0
29 W 51 SNR 19 23 50 +14 06.0           ~ 1278 1

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