2017A&A...600L..10C


C.D.S. - SIMBAD4 rel 1.7 - 2020.10.31CET12:59:37

2017A&A...600L..10C - Astronomy and Astrophysics, volume 600, L10-10 (2017/4-1)

ALMA survey of massive cluster progenitors from ATLASGAL. Limited fragmentation at the early evolutionary stage of massive clumps.

CSENGERI T., BONTEMPS S., WYROWSKI F., MOTTE F., MENTEN K.M., BEUTHER H., BRONFMAN L., COMMERCON B., CHAPILLON E., DUARTE-CABRAL A., FULLER G.A., HENNING T., LEURINI S., LONGMORE S., PALAU A., PERETTO N., SCHULLER F., TAN J.C., TESTI L., TRAFICANTE A. and URQUHART J.S.

Abstract (from CDS):

The early evolution of massive cluster progenitors is poorly understood. We investigate the fragmentation properties from 0.3pc to 0.06pc scales of a homogenous sample of infrared-quiet massive clumps within 4.5kpc selected from the ATLASGAL survey. Using the ALMA 7m array we detect compact dust continuum emission towards all targets and find that fragmentation, at these scales, is limited. The mass distribution of the fragments uncovers a large fraction of cores above 40M, corresponding to massive dense cores (MDCs) with masses up to ∼400M. Seventy-seven percent of the clumps contain at most 3 MDCs per clump, and we also reveal single clumps/MDCs. The most massive cores are formed within the more massive clumps and a high concentration of mass on small scales reveals a high core formation efficiency. The mass of MDCs highly exceeds the local thermal Jeans mass, and we lack the observational evidence of a sufficiently high level of turbulence or strong enough magnetic fields to keep the most massive MDCs in equilibrium. If already collapsing, the observed fragmentation properties with a high core formation efficiency are consistent with the collapse setting in at parsec scales.

Abstract Copyright: © ESO, 2017

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

VizieR on-line data: <Available at CDS (J/A+A/600/L10): tablea1.dat>

Nomenclature: Fig. A.1, Table A.1: [CBW2017] GLLL.llll+BB.bbbb-MMN N=100.

Simbad objects: 115

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Number of rows : 115

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 QSO B1424-41 QSO 14 27 56.29756536 -42 06 19.4375991   18.48 17.7 16.30   ~ 363 1
2 [CBW2017] G320.2325-00.2844-MM1 cor 15 09 51.93 -58 25 38.3           ~ 1 0
3 [CBW2017] G320.2325-00.2844-MM2 cor 15 09 52.78 -58 25 33.2           ~ 1 0
4 QSO B1514-24 BLL 15 17 41.8135246339 -24 22 19.482167214   15.13 14.00 13.95   ~ 653 3
5 [CBW2017] G322.1632+00.6221-MM4 cor 15 18 39.15 -56 38 53.7           ~ 1 0
6 [CBW2017] G322.1632+00.6221-MM3 cor 15 18 39.53 -56 38 59.0           ~ 1 0
7 [CBW2017] G322.1632+00.6221-MM2 cor 15 18 39.88 -56 38 52.2           ~ 1 0
8 [CBW2017] G322.1632+00.6221-MM1 cor 15 18 39.90 -56 38 47.3           ~ 1 0
9 [CBW2017] G321.9348-00.0066-MM2 cor 15 19 42.41 -57 18 08.0           ~ 1 0
10 [CBW2017] G321.9348-00.0066-MM5 cor 15 19 42.43 -57 18 14.8           ~ 1 0
11 [CBW2017] G321.9348-00.0066-MM4 cor 15 19 42.59 -57 18 04.0           ~ 1 0
12 [CBW2017] G321.9348-00.0066-MM3 cor 15 19 42.95 -57 18 11.8           ~ 1 0
13 EGO G321.94-0.01 cor 15 19 43.11480 -57 18 05.7888           ~ 4 0
14 [CBW2017] G323.7407-00.2635-MM1 cor 15 31 45.66 -56 30 50.7           ~ 1 0
15 [CBW2017] G323.7407-00.2635-MM2 cor 15 31 45.74 -56 30 45.7           ~ 1 0
16 [CBW2017] G323.7407-00.2635-MM3 cor 15 31 45.87 -56 31 01.0           ~ 1 0
17 [CBW2017] G326.4745+00.7027-MM2 cor 15 43 16.33 -54 07 18.3           ~ 1 0
18 [CBW2017] G326.4745+00.7027-MM1 cor 15 43 16.59 -54 07 13.9           ~ 1 0
19 [CBW2017] G326.4745+00.7027-MM3 cor 15 43 17.23 -54 07 13.8           ~ 1 0
20 [CBW2017] G326.6411+00.6127-MM1 cor 15 44 33.01 -54 05 28.1           ~ 1 0
21 [CBW2017] G326.6411+00.6127-MM2 cor 15 44 33.75 -54 05 21.9           ~ 1 0
22 [CBW2017] G326.6706+00.5539-MM1 cor 15 44 57.24 -54 07 13.7           ~ 1 0
23 [CBW2017] G326.6706+00.5539-MM2 cor 15 44 57.28 -54 07 08.8           ~ 1 0
24 [CBW2017] G326.6706+00.5539-MM3 cor 15 44 57.56 -54 07 04.4           ~ 1 0
25 [CBW2017] G328.2353-00.5481-MM2 cor 15 57 58.09 -53 59 29.6           ~ 1 0
26 [CBW2017] G328.2353-00.5481-MM1 cor 15 57 58.30 -53 59 23.8           ~ 1 0
27 [CBW2017] G328.2353-00.5481-MM3 cor 15 57 58.59 -53 59 19.2           ~ 1 0
28 [CBW2017] G328.2551-00.5321-MM1 cor 15 57 59.81 -53 58 00.3           ~ 1 0
29 [CBW2017] G328.2551-00.5321-MM3 cor 15 57 59.99 -53 57 56.5           ~ 1 0
30 [CBW2017] G328.2551-00.5321-MM2 cor 15 58 00.38 -53 57 53.0           ~ 1 0
31 [CBW2017] G329.0303-00.2022-MM1 cor 16 00 30.32 -53 12 27.5           ~ 1 0
32 [CBW2017] G329.0303-00.2022-MM4 cor 16 00 30.42 -53 12 36.9           ~ 1 0
33 [CBW2017] G329.0303-00.2022-MM6 cor 16 00 30.90 -53 12 29.3           ~ 1 0
34 [CBW2017] G329.0303-00.2022-MM2 cor 16 00 31.83 -53 12 49.5           ~ 1 0
35 [CBW2017] G329.0303-00.2022-MM3 cor 16 00 31.84 -53 12 55.4           ~ 1 0
36 [CBW2017] G329.0303-00.2022-MM5 cor 16 00 32.25 -53 12 46.7           ~ 1 0
37 [CBW2017] G329.1835-00.3147-MM1 cor 16 01 46.99 -53 11 43.5           ~ 1 0
38 3FGL J1617.4-5846 AGN 16 17 17.8913859288 -58 48 07.860059063   18.23       ~ 90 1
39 [CBW2017] G333.4659-00.1641-MM4 cor 16 21 20.22 -50 09 37.9           ~ 1 0
40 [CBW2017] G333.4659-00.1641-MM1 cor 16 21 20.26 -50 09 46.5           ~ 1 0
41 [CBW2017] G333.4659-00.1641-MM2 cor 16 21 20.41 -50 09 42.6           ~ 1 0
42 [CBW2017] G333.4659-00.1641-MM3 cor 16 21 20.60 -50 09 54.1           ~ 1 0
43 [CBW2017] G332.9630-00.6781-MM2 cor 16 21 22.85 -50 52 50.9           ~ 1 0
44 [CBW2017] G332.9630-00.6781-MM1 cor 16 21 22.86 -50 52 58.8           ~ 1 0
45 [CBW2017] G333.1298-00.5602-MM2 cor 16 21 35.32 -50 40 56.6           ~ 1 0
46 [CBW2017] G333.1298-00.5602-MM4 cor 16 21 35.72 -50 40 45.7           ~ 1 0
47 [CBW2017] G333.1298-00.5602-MM3 cor 16 21 35.76 -50 40 51.2           ~ 1 0
48 [CBW2017] G333.1298-00.5602-MM1 cor 16 21 36.27 -50 40 47.0           ~ 1 0
49 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3067 0
50 [CBW2017] G335.7896+00.1737-MM2 cor 16 29 46.08 -48 15 49.6           ~ 1 0
51 [CBW2017] G335.7896+00.1737-MM3 cor 16 29 47.13 -48 15 48.1           ~ 1 0
52 [CBW2017] G335.7896+00.1737-MM1 cor 16 29 47.29 -48 15 52.3           ~ 1 0
53 [PFD2013] MM1 cor 16 30 58.76 -48 43 53.4           ~ 5 0
54 [CBW2017] G335.5857-00.2906-MM1 cor 16 30 58.78 -48 43 53.7           ~ 1 0
55 [CBW2017] G336.0177-00.8283-MM2 cor 16 35 08.69 -48 46 44.9           ~ 1 0
56 [CBW2017] G336.0177-00.8283-MM1 cor 16 35 09.30 -48 46 48.1           ~ 1 0
57 PMN J1636-4101 Rad 16 36 55.3754 -41 02 00.518           ~ 17 1
58 [CBW2017] G336.2884-01.2547-MM1 cor 16 38 09.13 -48 51 56.3           ~ 1 0
59 [CBW2017] G336.2884-01.2547-MM2 cor 16 38 10.05 -48 52 00.6           ~ 1 0
60 [CBW2017] G336.2884-01.2547-MM3 cor 16 38 10.24 -48 52 13.9           ~ 1 0
61 [CBW2017] G338.9266+00.6329-MM2 cor 16 40 13.57 -45 38 33.4           ~ 1 0
62 [CBW2017] G338.9266+00.6329-MM1 cor 16 40 13.97 -45 38 29.5           ~ 1 0
63 [CBW2017] G338.9249+00.5539-MM2 cor 16 40 33.52 -45 41 37.1           ~ 1 0
64 [CBW2017] G338.9249+00.5539-MM3 cor 16 40 33.94 -45 41 43.3           ~ 1 0
65 [CBW2017] G338.9249+00.5539-MM1 cor 16 40 34.16 -45 41 36.3           ~ 1 0
66 [CBW2017] G340.2740-00.2113-MM1 cor 16 48 53.25 -45 10 22.1           ~ 1 0
67 [CBW2017] G340.2740-00.2113-MM3 cor 16 48 53.52 -45 10 25.0           ~ 1 0
68 [CBW2017] G340.2740-00.2113-MM2 cor 16 48 53.69 -45 10 20.6           ~ 1 0
69 [CBW2017] G339.6802-01.2090-MM1 cor 16 51 05.88 -46 16 05.8           ~ 1 0
70 [CBW2017] G339.6802-01.2090-MM3 cor 16 51 06.22 -46 15 57.9           ~ 1 0
71 [CBW2017] G339.6802-01.2090-MM2 cor 16 51 06.22 -46 16 02.9           ~ 1 0
72 [CBW2017] G340.9698-01.0212-MM4 cor 16 54 56.24 -45 08 59.2           ~ 1 0
73 [CBW2017] G340.9698-01.0212-MM3 cor 16 54 56.35 -45 09 02.4           ~ 1 0
74 [CBW2017] G340.9698-01.0212-MM2 cor 16 54 56.98 -45 09 04.2           ~ 1 0
75 [CBW2017] G340.9698-01.0212-MM5 cor 16 54 57.08 -45 09 07.2           ~ 1 0
76 [CBW2017] G340.9698-01.0212-MM1 cor 16 54 57.45 -45 09 04.7           ~ 1 0
77 [CBW2017] G343.1271-00.0632-MM2 cor 16 58 16.75 -42 52 05.1           ~ 1 0
78 [CBW2017] G343.1271-00.0632-MM1 cor 16 58 17.17 -42 52 07.5           ~ 1 0
79 [CBW2017] G343.7559-00.1640-MM2 cor 17 00 49.78 -42 26 12.4           ~ 1 0
80 [CBW2017] G343.7559-00.1640-MM1 cor 17 00 49.88 -42 26 09.3           ~ 1 0
81 [CBW2017] G344.2275-00.5688-MM1 cor 17 04 07.71 -42 18 39.2           ~ 1 0
82 [CBW2017] G348.1825+00.4829-MM3 cor 17 12 08.49 -38 30 50.1           ~ 1 0
83 [CBW2017] G348.1825+00.4829-MM1 cor 17 12 08.66 -38 30 46.3           ~ 1 0
84 [CBW2017] G348.1825+00.4829-MM2 cor 17 12 08.80 -38 30 54.1           ~ 1 0
85 ICRF J171736.0-334208 BLL 17 17 36.0293353 -33 42 08.832233   20.93   17.3   ~ 93 1
86 [CBW2017] G348.5493-00.9789-MM1 cor 17 19 20.41 -39 03 51.4           ~ 1 0
87 [CBW2017] G351.1542+00.7073-MM1 cor 17 19 54.88 -35 57 47.7           ~ 1 0
88 [CBW2017] G351.1542+00.7073-MM2 cor 17 19 55.13 -35 57 43.0           ~ 1 0
89 [CBW2017] G351.4441+00.6579-MM4 cor 17 20 54.60 -35 45 17.7           ~ 1 0
90 [CBW2017] G351.4441+00.6579-MM3 cor 17 20 54.78 -35 45 10.2           ~ 1 0
91 [CBW2017] G351.4441+00.6579-MM2 cor 17 20 54.96 -35 45 07.7           ~ 1 0
92 [CBW2017] G351.4441+00.6579-MM1 cor 17 20 55.22 -35 45 03.9           ~ 1 0
93 [CBW2017] G354.6154+00.4719-MM2 cor 17 30 17.10 -33 13 50.9           ~ 1 0
94 [CBW2017] G354.6154+00.4719-MM1 cor 17 30 17.15 -33 13 54.8           ~ 1 0
95 QSO B1730-130 QSO 17 33 02.70578476 -13 04 49.5481484   18 18.5 18.78 17.39 ~ 992 1
96 4C 09.57 BLL 17 51 32.81857318 +09 39 00.7284829   17.46 16.78 15.57   ~ 819 1
97 [TKB2013] C1-S cor 18 42 46.50 -04 04 16.0           ~ 15 0
98 [PWC2006] NH3 G28.34+0.06 P1 cor 18 42 50.9 -04 03 14           ~ 38 0
99 NVSS J185146+003532 Rad 18 51 46.72295 +00 35 32.3649           ~ 54 1
100 [CBW2017] G034.2570+00.1656-MM1 cor 18 53 15.88 +01 15 15.6           ~ 1 0
101 [CBW2017] G034.2570+00.1656-MM2 cor 18 53 16.29 +01 15 09.0           ~ 1 0
102 [CBW2017] G034.4112+00.2344-MM1 cor 18 53 18.02 +01 25 25.5           ~ 1 0
103 [CBW2017] G034.4005+00.2262-MM6 cor 18 53 18.17 +01 24 46.1           ~ 1 0
104 [CBW2017] G034.4005+00.2262-MM8 cor 18 53 18.29 +01 24 41.2           ~ 1 0
105 [CBW2017] G034.4005+00.2262-MM3 cor 18 53 18.51 +01 24 45.7           ~ 1 0
106 [CBW2017] G034.4005+00.2262-MM1 cor 18 53 18.72 +01 24 40.4           ~ 1 0
107 [CBW2017] G034.4005+00.2262-MM7 cor 18 53 18.89 +01 24 35.7           ~ 1 0
108 [CBW2017] G034.4005+00.2262-MM2 cor 18 53 19.01 +01 24 32.4           ~ 1 0
109 [CBW2017] G034.4005+00.2262-MM4 cor 18 53 19.13 +01 24 28.0           ~ 1 0
110 [CBW2017] G034.4005+00.2262-MM5 cor 18 53 19.45 +01 24 32.4           ~ 1 0
111 [CBW2017] G035.1330-00.7450-MM1 cor 18 58 06.19 +01 37 07.5           ~ 1 0
112 [CBW2017] G035.1330-00.7450-MM2 cor 18 58 06.58 +01 37 02.5           ~ 1 0
113 NAME Cyg X Cld 20 28 41 +41 10.2           ~ 634 1
114 [MBS2007c] CygX-N63 mm 20 40 05.2 +41 32 13           ~ 14 0
115 [CFR2000] G011.11-0.12 P6 smm ~ ~           ~ 4 0

    Equat.    Gal    SGal    Ecl

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2020.10.31-12:59:37

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