2019ApJ...884...84D

Query : 2019ApJ...884...84D

2019ApJ...884...84D - Astrophys. J., 884, 84-84 (2019/October-2)

The cluster-forming site AFGL 5157: colliding filamentary clouds and star formation.

DEWANGAN L.K.

Abstract (from CDS):

We observationally investigate star formation process occurring in AFGL 5157 (area ∼13.5 pc x 13.5 pc) using a multi-wavelength approach. Embedded filaments are seen in the Herschel column density map, and one of them is identified as an elongated filamentary feature (FF) (length ∼8.3 pc; mass ∼1170 M☉). Five Herschel clumps (Mclump ∼45-300 M☉) are traced in the central part of the FF, where an extended temperature structure (Td ∼13.5-26.5 K) is observed. In the direction of the central part of the FF, the warmer region at Td ∼20-26.5 K spatially coincides with a mid-infrared shell surrounding a previously known evolved infrared cluster. Diffuse Hα emission is traced inside the infrared shell, suggesting the presence of massive stars in the evolved cluster. Based on the surface density analysis of young stellar objects (YSOs), embedded clusters of YSOs are traced toward the central part of the FF, and are distributed around the infrared shell. Previously detected H2O masers, H2 knots, massive protostar candidates, and an H II region are also seen toward the embedded clusters. Using the 12CO and 13CO line data, the central part of the FF is observed at the overlapping zones of two filamentary molecular clouds (length ∼12.5 pc) around -20 and -17 km s–1, which are also connected in velocity. Our observational results suggest that the formation of massive stars appears to be triggered by a collision of two filamentary molecular clouds, which might have also influenced the birth of YSOs in AFGL 5157.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): dust, extinction - H II regions - ISM: clouds - ISM: individual objects: AFGL 5157 - stars: formation

VizieR on-line data: <Available at CDS (J/ApJ/884/84): table3.dat>

Nomenclature: Fig. 2, Table 2: [D2019b] Clump NN (Nos Clump 1-Clump 23). Fig. 3, Table 2: [D2019b] Clump A (Nos Clump A-Clump E). Table 3: [D2019b] YSO NNN (Nos YSO 1-YSO 167).

Simbad objects: 204

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Number of rows : 204
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 GAL 174.20-00.08 Cld 05 30 45.9 +33 47 56           ~ 210 2
2 NGC 1931 OpC 05 31 23 +34 14.0     10.1     ~ 136 0
3 NAME LDN 1641 North HII 05 36 17.6 -06 22 10           ~ 252 0
4 2MASS J05364863+3207394 Y*O 05 36 48.63384 +32 07 39.4608           ~ 1 0
5 2MASS J05370596+3211028 Y*O 05 37 05.96760 +32 11 02.8608           ~ 1 0
6 2MASS J05372205+3209124 Y*O 05 37 22.05744 +32 09 12.4596           ~ 1 0
7 2MASS J05372547+3200498 Y*O 05 37 25.4774435760 +32 00 49.829580180     12.5     ~ 3 0
8 2MASS J05372549+3207496 Y*O 05 37 25.49136 +32 07 49.6668           ~ 1 0
9 2MASS J05372747+3148585 Y*O 05 37 27.47592 +31 48 58.5756           ~ 1 0
10 2MASS J05372860+3200015 Y*O 05 37 28.60536 +32 00 01.5372           ~ 1 0
11 2MASS J05372871+3147387 Y*O 05 37 28.71528 +31 47 38.7744           ~ 1 0
12 2MASS J05373135+3157177 Y*O 05 37 31.35744 +31 57 17.7660           ~ 1 0
13 2MASS J05373425+3149516 Y*O 05 37 34.25160 +31 49 51.6720           ~ 1 0
14 [D2019b] Clump 6 MoC 05 37 34 +32 05.2           ~ 1 0
15 [D2019b] Clump 23 MoC 05 37 37 +31 51.7           ~ 1 0
16 [D2019b] Clump 14 MoC 05 37 37 +32 03.1           ~ 1 0
17 2MASS J05373775+3204444 Y*O 05 37 37.75104 +32 04 44.4360           ~ 1 0
18 2MASS J05373787+3156050 Y*O 05 37 37.87032 +31 56 05.0100           ~ 1 0
19 [D2019b] Clump 15 MoC 05 37 38 +32 02.2           ~ 1 0
20 2MASS J05373875+3200533 Y*O 05 37 38.75040 +32 00 53.3124           ~ 1 0
21 [D2019b] YSO 142 Y*O 05 37 39.2 +32 01 51           ~ 1 0
22 2MASS J05374011+3154061 Y*O 05 37 40.11936 +31 54 06.1776           ~ 1 0
23 [D2019b] Clump 10 MoC 05 37 40 +32 05.1           ~ 1 0
24 [D2019b] Clump 11 MoC 05 37 40 +32 04.2           ~ 1 0
25 [D2019b] YSO 101 Y*O 05 37 40.3 +32 04 03           ~ 1 0
26 [D2019b] YSO 137 Y*O 05 37 40.4 +32 01 26           ~ 1 0
27 2MASS J05374082+3202284 Y*O 05 37 40.82016 +32 02 28.4388           ~ 1 0
28 [D2019b] YSO 139 Y*O 05 37 40.9 +32 01 30           ~ 1 0
29 2MASS J05374139+3158193 Y*O 05 37 41.3807296512 +31 58 19.359675948           ~ 2 0
30 2MASS J05374150+3156092 Y*O 05 37 41.50512 +31 56 09.2580           ~ 1 0
31 [D2019b] YSO 88 Y*O 05 37 41.6 +32 01 28           ~ 1 0
32 [D2019b] YSO 138 Y*O 05 37 42.0 +32 01 22           ~ 1 0
33 2MASS J05374200+3200478 Y*O 05 37 42.0088636248 +32 00 47.888695188           ~ 2 0
34 [D2019b] YSO 73 Y*O 05 37 42.0 +32 00 53           ~ 1 0
35 [D2019b] YSO 140 Y*O 05 37 42.0 +32 01 27           ~ 1 0
36 [D2019b] YSO 150 Y*O 05 37 42.2 +31 58 42           ~ 1 0
37 [D2019b] YSO 141 Y*O 05 37 42.3 +32 02 07           ~ 1 0
38 [D2019b] YSO 87 Y*O 05 37 42.4 +32 00 47           ~ 1 0
39 2MASS J05374252+3202361 Y*O 05 37 42.52392 +32 02 36.1032           ~ 1 0
40 [D2019b] YSO 123 Y*O 05 37 42.8 +32 01 12           ~ 1 0
41 2MASS J05374285+3200432 Y*O 05 37 42.85752 +32 00 43.2720           ~ 1 0
42 [D2019b] Clump 9 MoC 05 37 43 +32 04.8           ~ 1 0
43 [D2019b] YSO 133 Y*O 05 37 43.0 +32 01 34           ~ 1 0
44 [D2019b] Clump E MoC 05 37 43 +32 00.7           ~ 1 0
45 [D2019b] YSO 72 Y*O 05 37 43.1 +32 00 53           ~ 1 0
46 [D2019b] YSO 86 Y*O 05 37 43.1 +32 02 27           ~ 1 0
47 [D2019b] YSO 135 Y*O 05 37 43.2 +32 01 31           ~ 1 0
48 [D2019b] YSO 134 Y*O 05 37 43.2 +32 01 36           ~ 1 0
49 2MASS J05374331+3159352 Y*O 05 37 43.3136603424 +31 59 35.164172040           ~ 2 0
50 [D2019b] YSO 132 Y*O 05 37 43.3 +32 01 42           ~ 1 0
51 [D2019b] Clump 13 MoC 05 37 43 +32 02.9           ~ 1 0
52 2MASS J05374339+3201348 Y*O 05 37 43.3978952592 +32 01 35.749247592           ~ 2 0
53 [D2019b] Clump 21 MoC 05 37 44 +31 53.3           ~ 1 0
54 [D2019b] Clump 8 MoC 05 37 44 +32 06.6           ~ 1 0
55 [D2019b] YSO 124 Y*O 05 37 43.7 +32 01 14           ~ 1 0
56 [D2019b] YSO 74 Y*O 05 37 43.7 +32 00 40           ~ 1 0
57 2MASS J05374369+3202484 Y*O 05 37 43.69800 +32 02 48.4332           ~ 1 0
58 2MASS J05374368+3200152 Y*O 05 37 43.7026209936 +32 00 15.480212616           ~ 2 0
59 2MASS J05374402+3150361 Y*O 05 37 44.02560 +31 50 36.1968           ~ 1 0
60 [D2019b] YSO 158 Y*O 05 37 44.1 +31 59 18           ~ 1 0
61 2MASS J05374414+3159099 Y*O 05 37 44.15 +31 59 09.9           ~ 2 0
62 [D2019b] YSO 99 Y*O 05 37 44.4 +31 56 51           ~ 1 0
63 2MASS J05374482+3200375 Y*O 05 37 44.82264 +32 00 37.5588           ~ 1 0
64 2MASS J05374504+3200327 Y*O 05 37 45.047 +32 00 32.72           ~ 2 0
65 ZTF J053745.07+320204.2 Y*O 05 37 45.08424 +32 02 04.1604           ~ 3 0
66 2MASS J05374512+3152164 Y*O 05 37 45.12696 +31 52 16.4784           ~ 1 0
67 [D2019b] Clump 20 MoC 05 37 45 +31 54.9           ~ 1 0
68 [D2019b] YSO 109 Y*O 05 37 45.4 +32 00 07           ~ 1 0
69 2MASS J05374543+3159532 Y*O 05 37 45.43560 +31 59 53.2104           ~ 1 0
70 [D2019b] Clump 12 MoC 05 37 45 +32 02.8           ~ 1 0
71 [D2019b] YSO 108 Y*O 05 37 45.6 +32 00 09           ~ 1 0
72 2MASS J05374562+3154255 Y*O 05 37 45.62496 +31 54 25.5564           ~ 1 0
73 [D2019b] YSO 153 Y*O 05 37 45.7 +31 56 32           ~ 1 0
74 [D2019b] YSO 117 Y*O 05 37 45.8 +31 58 24           ~ 1 0
75 [D2019b] YSO 85 Y*O 05 37 45.9 +32 00 37           ~ 1 0
76 [D2019b] YSO 80 Y*O 05 37 45.9 +32 01 24           ~ 1 0
77 2MASS J05374600+3159368 Y*O 05 37 46.00 +31 59 36.8           ~ 3 0
78 2MASS J05374604+3200402 Y*O 05 37 46.041 +32 00 40.21           ~ 2 0
79 [D2019b] Clump D MoC 05 37 46 +31 59.6           ~ 1 0
80 2MASS J05374609+3159594 Y*O 05 37 46.10 +31 59 59.5           ~ 2 0
81 2MASS J05374621+3154061 Y*O 05 37 46.21224 +31 54 06.1236           ~ 1 0
82 2MASS J05374686+3159236 Y*O 05 37 46.86576 +31 59 23.6544           ~ 1 0
83 2MASS J05374704+3157429 Y*O 05 37 47.048 +31 57 42.99           ~ 2 0
84 2MASS J05374709+3155334 Y*O 05 37 47.09592 +31 55 33.4776           ~ 1 0
85 2MASS J05374712+3157075 Y*O 05 37 47.12880 +31 57 07.5960           ~ 1 0
86 [D2019b] YSO 94 Y*O 05 37 47.2 +32 04 59           ~ 1 0
87 [D2019b] Clump 7 MoC 05 37 47 +32 04.8           ~ 1 0
88 [D2019b] Clump 18 MoC 05 37 47 +31 57.0           ~ 1 0
89 [D2019b] YSO 164 Y*O 05 37 47.5 +32 00 50           ~ 1 0
90 [D2019b] Clump 19 MoC 05 37 48 +31 55.8           ~ 1 0
91 [D2019b] YSO 98 Y*O 05 37 47.7 +31 57 18           ~ 1 0
92 2MASS J05374775+3156173 Y*O 05 37 47.75856 +31 56 17.3220           ~ 1 0
93 NGC 1985 RNe 05 37 47.8 +31 59 24           ~ 145 2
94 [D2019b] YSO 129 Y*O 05 37 47.9 +31 58 36           ~ 1 0
95 [D2019b] YSO 106 Y*O 05 37 47.9 +32 00 23           ~ 1 0
96 [D2019b] Clump 22 MoC 05 37 48 +31 52.9           ~ 1 0
97 [D2019b] YSO 107 Y*O 05 37 48.0 +32 00 15           ~ 1 0
98 2MASS J05374801+3156435 LP? 05 37 48.0096529064 +31 56 43.723853738           ~ 6 1
99 2MASS J05374810+3159457 Y*O 05 37 48.1065658560 +31 59 45.658895316           ~ 2 0
100 2MASS J05374810+3204480 Y*O 05 37 48.10704 +32 04 48.0324           ~ 1 0
101 2MASS J05374815+3158562 Y*O 05 37 48.160 +31 58 56.29           ~ 2 0
102 [D2019b] YSO 84 Y*O 05 37 48.6 +32 01 24           ~ 1 0
103 [D2019b] Clump 5 MoC 05 37 49 +32 03.6           ~ 1 0
104 [D2019b] YSO 100 Y*O 05 37 48.8 +31 57 44           ~ 1 0
105 2MASS J05374925+3159213 Y*O 05 37 49.253 +31 59 21.38           ~ 2 0
106 [D2019b] YSO 105 Y*O 05 37 49.3 +32 00 35           ~ 1 0
107 2MASS J05374939+3159366 Y*O 05 37 49.393 +31 59 36.66           ~ 2 0
108 2MASS J05374940+3200308 Y*O 05 37 49.3955099819 +32 00 30.919685155           M0 4 0
109 2MASS J05374946+3157121 Y*O 05 37 49.46088 +31 57 12.1752           ~ 1 0
110 2MASS J05374949+3154463 Y*O 05 37 49.49064 +31 54 46.3752           ~ 1 0
111 [D2019b] YSO 79 Y*O 05 37 49.6 +31 58 29           ~ 1 0
112 [D2019b] Clump 17 MoC 05 37 50 +31 57.7           ~ 1 0
113 2MASS J05374975+3201233 Y*O 05 37 49.752 +32 01 23.30           ~ 2 0
114 2MASS J05374982+3159480 Y*O 05 37 49.824 +31 59 48.02           ~ 2 0
115 JCMTSE J053750.4+315914 Y*O 05 37 49.9 +31 59 10           ~ 4 0
116 2MASS J05374998+3159068 Y*O 05 37 49.983 +31 59 06.87           ~ 2 0
117 2MASS J05375009+3200074 Y*O 05 37 50.091 +32 00 07.50           ~ 2 0
118 2MASS J05375010+3159245 Y*O 05 37 50.1062500440 +31 59 24.551220444           ~ 2 0
119 2MASS J05375011+3200476 Y*O 05 37 50.111 +32 00 47.64           ~ 2 0
120 [D2019b] YSO 127 Y*O 05 37 50.2 +31 58 51           ~ 1 0
121 2MASS J05375029+3159035 Y*O 05 37 50.2239957960 +31 59 03.196015548           ~ 2 0
122 2MASS J05375044+3159192 Y*O 05 37 50.445 +31 59 19.28           ~ 3 0
123 2MASS J05375048+3158515 Y*O 05 37 50.48976 +31 58 51.5496           ~ 1 0
124 [D2019b] YSO 111 Y*O 05 37 50.5 +32 00 31           ~ 1 0
125 [D2019b] YSO 128 Y*O 05 37 50.5 +31 58 36           ~ 1 0
126 2MASS J05375056+3157569 Y*O 05 37 50.561 +31 57 56.91           ~ 2 0
127 [D2019b] Clump C MoC 05 37 51 +31 59.0           ~ 1 0
128 [D2019b] YSO 92 Y*O 05 37 50.6 +31 58 08           ~ 1 0
129 2MASS J05375076+3200453 Y*O 05 37 50.7759534072 +32 00 45.696484368           ~ 2 0
130 2MASS J05375075+3157495 Y*O 05 37 50.8080174672 +31 57 49.883212260           ~ 2 0
131 2MASS J05375098+3159012 Y*O 05 37 50.98632 +31 59 01.2840           ~ 1 0
132 [D2019b] YSO 78 Y*O 05 37 51.1 +31 58 58           ~ 1 0
133 2MASS J05375113+3200573 Y*O 05 37 51.130 +32 00 57.38           ~ 2 0
134 [D2019b] YSO 156 Y*O 05 37 51.3 +32 00 08           ~ 1 0
135 [D2019b] YSO 119 Y*O 05 37 51.3 +31 59 34           ~ 1 0
136 2MASS J05375142+3200211 Y*O 05 37 51.42264 +32 00 21.1212           ~ 1 0
137 2MASS J05375160+3202281 Y*O 05 37 51.60576 +32 02 28.1112           ~ 1 0
138 [D2019b] YSO 159 Y*O 05 37 51.8 +32 01 46           ~ 1 0
139 2MASS J05375189+3158453 Y*O 05 37 51.89232 +31 58 45.3756           ~ 1 0
140 [D2019b] YSO 120 Y*O 05 37 52.0 +31 59 35           ~ 1 0
141 [D2019b] YSO 160 Y*O 05 37 52.0 +32 01 43           ~ 1 0
142 2MASS J05375211+3200485 Y*O 05 37 52.11240 +32 00 48.5748           ~ 1 0
143 2MASS J05375213+3159193 Y*O 05 37 52.1295593808 +31 59 19.336144992           ~ 2 0
144 2MASS J05375221+3159248 Y*O 05 37 52.218 +31 59 24.86           ~ 2 0
145 UCAC3 245-50044 Y*O 05 37 52.2235859784 +32 00 43.901414352   16.13 14.82 14.76   G2 4 0
146 [D2019b] Clump 16 MoC 05 37 52 +31 59.8           ~ 1 0
147 [D2019b] Clump A MoC 05 37 52 +31 59.8           ~ 1 0
148 2MASS J05375227+3158410 Y*O 05 37 52.275 +31 58 41.00           ~ 2 0
149 [D2019b] YSO 163 Y*O 05 37 52.3 +32 01 16           ~ 1 0
150 [D2019b] YSO 125 Y*O 05 37 52.4 +31 58 52           ~ 1 0
151 2MASS J05375244+3201088 Y*O 05 37 52.44936 +32 01 08.8032           ~ 1 0
152 [D2019b] Clump B MoC 05 37 52 +31 59.3           ~ 1 0
153 2MASS J05375272+3159589 Y*O 05 37 52.72704 +31 59 58.9560           ~ 1 0
154 2MASS J05375282+3159374 Y*O 05 37 52.82544 +31 59 37.4568           ~ 1 0
155 [D2019b] YSO 121 Y*O 05 37 53.0 +31 59 27           ~ 1 0
156 2MASS J05375320+3158252 Y*O 05 37 53.203 +31 58 25.25           ~ 2 0
157 2MASS J05375353+3159525 Y*O 05 37 53.53704 +31 59 52.5984           ~ 1 0
158 [CYY99] NIRS 122 Y*O 05 37 53.7 +31 58 53           ~ 2 0
159 [CYY99] NIRS 20 Y*O 05 37 53.7 +32 00 40           ~ 2 0
160 2MASS J05375420+3159431 Y*O 05 37 54.20880 +31 59 43.1376           ~ 1 0
161 [D2019b] YSO 154 Y*O 05 37 54.2 +32 00 44           ~ 1 0
162 2MASS J05375427+3158365 Y*O 05 37 54.2739129840 +31 58 36.731404668           ~ 2 0
163 2MASS J05375459+3158299 Y*O 05 37 54.5727412248 +31 58 29.980316568           ~ 2 0
164 [D2019b] YSO 118 Y*O 05 37 54.6 +31 59 43           ~ 1 0
165 2MASS J05375476+3158343 Y*O 05 37 54.7627793664 +31 58 34.506689304           ~ 2 0
166 2MASS J05375478+3158170 Y*O 05 37 54.790 +31 58 17.00           ~ 2 0
167 2MASS J05375491+3158205 Y*O 05 37 54.9031530144 +31 58 20.639416008           ~ 2 0
168 2MASS J05375532+3158547 Y*O 05 37 55.3495270584 +31 58 54.972128316           ~ 2 0
169 2MASS J05375543+3159268 Y*O 05 37 55.433 +31 59 26.84           ~ 2 0
170 [D2019b] YSO 146 Y*O 05 37 55.8 +32 00 27           ~ 1 0
171 [D2019b] YSO 93 Y*O 05 37 55.8 +31 57 50           ~ 1 0
172 [CYY99] NIRS 57 Y*O 05 37 55.9 +31 59 50           ~ 2 0
173 2MASS J05375594+3200102 Y*O 05 37 55.94904 +32 00 10.2708           ~ 1 0
174 2MASS J05375618+3156019 Y*O 05 37 56.18256 +31 56 01.9392           ~ 1 0
175 2MASS J05375625+3204556 Y*O 05 37 56.25504 +32 04 55.6140           ~ 1 0
176 [D2019b] YSO 144 Y*O 05 37 56.3 +32 00 44           ~ 1 0
177 2MASS J05375651+3158241 Y*O 05 37 56.5176075408 +31 58 24.325169664           ~ 2 0
178 [D2019b] YSO 145 Y*O 05 37 56.9 +32 00 31           ~ 1 0
179 [D2019b] Clump 1 MoC 05 37 57 +32 11.7           ~ 1 0
180 [D2019b] YSO 152 Y*O 05 37 57.4 +32 05 17           ~ 1 0
181 [D2019b] YSO 81 Y*O 05 37 57.9 +32 00 44           ~ 1 0
182 2MASS J05375862+3201212 Y*O 05 37 58.62312 +32 01 21.2016           ~ 1 0
183 [D2019b] YSO 122 Y*O 05 37 58.8 +32 03 08           ~ 1 0
184 [D2019b] Clump 3 MoC 05 38 00 +32 05.2           ~ 1 0
185 [D2019b] Clump 4 MoC 05 38 00 +32 04.0           ~ 1 0
186 2MASS J05380004+3218565 Y*O 05 38 00.0452614884 +32 18 56.437588814           ~ 2 0
187 2MASS J05380036+3205290 Y*O 05 38 00.3662047321 +32 05 29.197931805           ~ 2 0
188 [D2019b] YSO 151 Y*O 05 38 02.2 +32 18 48           ~ 1 0
189 [D2019b] Clump 2 MoC 05 38 03 +32 05.7           ~ 1 0
190 [D2019b] YSO 96 Y*O 05 38 03.7 +32 05 51           ~ 1 0
191 2MASS J05380411+3205219 Y*O 05 38 04.11888 +32 05 21.9696           ~ 1 0
192 2MASS J05380667+3205247 Y*O 05 38 06.67872 +32 05 24.7020           ~ 1 0
193 2MASS J05381199+3215372 Y*O 05 38 11.99976 +32 15 37.2024           ~ 1 0
194 2MASS J05381439+3208017 Y*O 05 38 14.39520 +32 08 01.7916           ~ 1 0
195 2MASS J05381441+3158179 Y*O 05 38 14.41632 +31 58 17.9112           ~ 1 0
196 2MASS J05381561+3213029 Y*O 05 38 15.61176 +32 13 02.9820           ~ 1 0
197 2MASS J05382061+3215193 Y*O 05 38 20.61888 +32 15 19.3500           ~ 1 0
198 2MASS J05382184+3200318 Y*O 05 38 21.84960 +32 00 31.8204           ~ 1 0
199 [D2019b] YSO 162 Y*O 05 38 55.8 +32 00 37           ~ 1 0
200 NAME Rosette Nebula HII 06 32 26.76 +04 47 37.1           ~ 522 1
201 M 20 OpC 18 02 42 -22 58.3           ~ 456 1
202 W 33a Y*O 18 14 39.56547 -17 52 02.2260           ~ 746 0
203 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1
204 MSXDC G035.39-00.33 MoC 18 57 09.0 +02 07 46           ~ 132 0

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