1999AJ....117..446C

Query : 1999AJ....117..446C

1999AJ....117..446C - Astron. J., 117, 446-455 (1999/January-0)

Near-infrared imaging of the star-forming region AFGL 5157.

CHEN Y., YAO Y., YANG J., HIRAO T., ISHII M., NAGATA T. and SATO S.

Abstract (from CDS):

We present near-infrared images of the star-forming region AFGL 5157 in the JHK' broadband filters and H2 v=1-0 S(1) narrowband filter. The images reveal a dense cluster of stars and infrared nebulosities associated with previously known infrared sources. Of 54 near-infrared sources detected in the nebula, NGC 1985, 12 exhibit infrared excesses typical of T Tauri stars, Herbig Ae/Be stars, and protostars. The magnitude and color distribution of the cluster of stars in the nebula are found to be different from those outside the nebular region. The K'-magnitude distribution of the cluster is quite flat, while the noncluster is peaked toward the low magnitude. The [H-K'] color of the cluster also displays 0.3 mag redder than that of the noncluster. The infrared nebula displays a bright nucleus with two spirals extended to the north and south. In light of the color properties of the nebula, we propose a shell model for the nebular structure that could be formed by star-forming activity of the central cluster. Many sources with infrared excesses are found to be embedded in the shell structure. Twelve shocked knots in H2 emission are observed in the region. The nonaxisymmetric distribution of the knots indicates the presence of multiple outflows in the region. Although we failed to identify the powering sources responsible for some of the HH-like objects, the relationship of the H2 emission with infrared sources shows that there must be several spatially separated sources exciting the shocked H2 emission as well as the previously observed H2O masers and molecular outflow. Diffuse H2 emission is also detected on the shell structure, which supports the shell model of the nebula. This diffuse emission could result from fluorescence by relatively evolved stars in the cluster.

Abstract Copyright: ∼

Journal keyword(s): Infrared Radiation - ISM: Individual: Alphanumeric: AFGL 5157 - ISM: Jets and Outflows - ISM: Reflection Nebulae - Stars: Formation

VizieR on-line data: <Available at CDS (J/AJ/117/446): table1.dat table2.dat>

Nomenclature: Table 1: [CYY99] NIRS NNN (Nos 1-170). Table 2: [CYY99] H2 NN (Nos 1-12).

Simbad objects: 192

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Number of rows : 192
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 HD 3029 * 00 33 39.5317233336 +20 26 01.673924748 8.19 8.11 7.84     A3 43 0
2 HD 18881 * 03 03 31.9447272600 +38 24 36.075859488   7.12 7.14     A0 83 0
3 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
4 2MASS J05374109+3158525 NIR 05 37 41.10 +31 58 52.5           ~ 1 0
5 2MASS J05374139+3158193 Y*O 05 37 41.3807296512 +31 58 19.359675948           ~ 2 0
6 2MASS J05374200+3200478 Y*O 05 37 42.0088636248 +32 00 47.888695188           ~ 2 0
7 2MASS J05374259+3201030 NIR 05 37 42.5764220232 +32 01 02.305263036           ~ 1 0
8 2MASS J05374322+3157438 NIR 05 37 43.2299239920 +31 57 43.881764904           ~ 1 0
9 2MASS J05374327+3159245 NIR 05 37 43.2768544608 +31 59 24.589963032           ~ 1 0
10 2MASS J05374330+3158430 NIR 05 37 43.3007876232 +31 58 43.113105372           ~ 1 0
11 2MASS J05374331+3159352 Y*O 05 37 43.3136603424 +31 59 35.164172040           ~ 2 0
12 2MASS J05374339+3201348 Y*O 05 37 43.3978952592 +32 01 35.749247592           ~ 2 0
13 2MASS J05374368+3200152 Y*O 05 37 43.7026209936 +32 00 15.480212616           ~ 2 0
14 2MASS J05374392+3159407 NIR 05 37 43.9111695264 +31 59 40.610024160           ~ 1 0
15 ZTF J053743.99+320005.7 RS* 05 37 43.9849499712 +32 00 05.824950300           ~ 3 0
16 2MASS J05374410+3201264 NIR 05 37 44.109 +32 01 26.46           ~ 1 0
17 2MASS J05374414+3159099 Y*O 05 37 44.15 +31 59 09.9           ~ 2 0
18 2MASS J05374417+3200583 NIR 05 37 44.180 +32 00 58.38           ~ 1 0
19 2MASS J05374430+3157578 NIR 05 37 44.3048720256 +31 57 57.920724432           ~ 1 0
20 2MASS J05374438+3200030 NIR 05 37 44.3907019056 +32 00 03.016152216           ~ 1 0
21 [CYY99] NIRS 40 IR 05 37 44.75 +32 00 08.8           ~ 1 0
22 2MASS J05374482+3201293 NIR 05 37 44.828 +32 01 29.37           ~ 1 0
23 2MASS J05374491+3157595 NIR 05 37 44.9154587712 +31 57 59.501312208           ~ 1 0
24 2MASS J05374496+3200215 * 05 37 44.9673196608 +32 00 21.488592672           ~ 1 0
25 2MASS J05374504+3200327 Y*O 05 37 45.047 +32 00 32.72           ~ 2 0
26 2MASS J05374513+3159100 NIR 05 37 45.1325221416 +31 59 09.926198160           ~ 1 0
27 2MASS J05374523+3158145 NIR 05 37 45.24 +31 58 14.6           ~ 1 0
28 2MASS J05374540+3159170 NIR 05 37 45.3951775200 +31 59 17.065228560           ~ 2 0
29 HH 285 HH 05 37 45.69 +31 58 59.2           ~ 4 0
30 2MASS J05374577+3159122 NIR 05 37 45.7753490832 +31 59 12.356010132           ~ 1 0
31 2MASS J05374578+3159050 * 05 37 45.7784634336 +31 59 04.989719904           ~ 1 0
32 ZTF J053745.79+320114.3 RS* 05 37 45.7994916000 +32 01 14.252914668           ~ 3 0
33 2MASS J05374600+3159368 Y*O 05 37 46.00 +31 59 36.8           ~ 3 0
34 2MASS J05374604+3200402 Y*O 05 37 46.041 +32 00 40.21           ~ 2 0
35 2MASS J05374609+3159594 Y*O 05 37 46.10 +31 59 59.5           ~ 2 0
36 2MASS J05374617+3159324 NIR 05 37 46.1633741976 +31 59 32.490721716           ~ 1 0
37 2MASS J05374621+3158459 * 05 37 46.2218001888 +31 58 45.834173112           ~ 1 0
38 2MASS J05374637+3159220 NIR 05 37 46.3680097896 +31 59 21.987776076           ~ 1 0
39 2MASS J05374649+3158310 NIR 05 37 46.4961725472 +31 58 30.981313884           ~ 1 0
40 JCMTSF J053746.6+315950 IR 05 37 46.60 +31 59 49.7           ~ 3 0
41 2MASS J05374660+3200138 * 05 37 46.6031482992 +32 00 13.867960932           ~ 1 0
42 2MASS J05374664+3159420 NIR 05 37 46.6476742368 +31 59 41.982847368           ~ 1 0
43 2MASS J05374667+3201093 NIR 05 37 46.677 +32 01 09.33           ~ 1 0
44 2MASS J05374671+3159578 NIR 05 37 46.7143838400 +31 59 57.839310564           ~ 1 0
45 2MASS J05374679+3159307 NIR 05 37 46.798 +31 59 30.75           ~ 1 0
46 2MASS J05374687+3158518 NIR 05 37 46.8813599400 +31 58 51.764968632           ~ 1 0
47 2MASS J05374693+3159514 NIR 05 37 46.934 +31 59 51.42           ~ 1 0
48 2MASS J05374704+3157429 Y*O 05 37 47.048 +31 57 42.99           ~ 2 0
49 2MASS J05374709+3200024 NIR 05 37 47.10 +32 00 02.4           ~ 1 0
50 [CYY99] NIRS 41 IR 05 37 47.11 +32 00 06.9           ~ 1 0
51 2MASS J05374716+3159330 NIR 05 37 47.1650919408 +31 59 33.076489092           ~ 1 0
52 2MASS J05374717+3158295 NIR 05 37 47.173 +31 58 29.56           ~ 1 0
53 2MASS J05374719+3159239 NIR 05 37 47.1821708376 +31 59 23.661215988           ~ 1 0
54 [CYY99] NIRS 92 IR 05 37 47.31 +31 59 26.9           ~ 1 0
55 2MASS J05374732+3159396 NIR 05 37 47.3119276944 +31 59 39.499000512           ~ 1 0
56 [CYY99] NIRS 85 IR 05 37 47.45 +31 59 31.8           ~ 1 0
57 2MASS J05374772+3157481 * 05 37 47.7194635464 +31 57 48.191487804           ~ 1 0
58 [CYY99] NIRS 104 * 05 37 47.7943663440 +31 59 20.132271708           ~ 2 0
59 NGC 1985 RNe 05 37 47.8 +31 59 24           ~ 145 2
60 2MASS J05374798+3200019 NIR 05 37 47.981 +32 00 01.91           ~ 1 0
61 2MASS J05374804+3200334 * 05 37 48.0384616896 +32 00 33.416590356           ~ 1 0
62 2MASS J05374810+3159457 Y*O 05 37 48.1065658560 +31 59 45.658895316           ~ 2 0
63 HH 281 HH 05 37 48.12 +32 00 10.0           ~ 4 0
64 [CYY99] NIRS 90 IR 05 37 48.13 +31 59 27.5           ~ 2 0
65 2MASS J05374815+3158562 Y*O 05 37 48.160 +31 58 56.29           ~ 2 0
66 2MASS J05374817+3159348 NIR 05 37 48.1722411216 +31 59 34.823420016           ~ 1 0
67 [CYY99] NIRS 42 IR 05 37 48.18 +32 00 05.7           ~ 1 0
68 2MASS J05374833+3159237 NIR 05 37 48.330 +31 59 23.74           ~ 1 0
69 2MASS J05374834+3201098 * 05 37 48.3455691816 +32 01 09.862967892           ~ 1 0
70 2MASS J05374840+3159280 NIR 05 37 48.402 +31 59 28.01           ~ 2 0
71 2MASS J05374849+3159008 NIR 05 37 48.496 +31 59 00.90           ~ 2 0
72 NAME AFGL 5157 IRS 1 * 05 37 48.5 +31 59 28           ~ 3 0
73 2MASS J05374853+3159377 NIR 05 37 48.534 +31 59 37.74           ~ 2 0
74 2MASS J05374856+3159321 NIR 05 37 48.5733224448 +31 59 32.236360296           ~ 1 0
75 [CYY99] NIRS 88 IR 05 37 48.64 +31 59 28.0           ~ 1 0
76 [CYY99] NIRS 169 IR 05 37 48.67 +31 57 32.5           ~ 1 0
77 2MASS J05374882+3159462 NIR 05 37 48.82 +31 59 46.2           ~ 1 0
78 2MASS J05374880+3159315 NIR 05 37 48.8248579632 +31 59 31.665863220           ~ 1 0
79 2MASS J05374882+3159236 NIR 05 37 48.8287909680 +31 59 23.583455448           ~ 1 0
80 HH 282 HH 05 37 48.84 +32 00 00.4           ~ 4 0
81 2MASS J05374889+3157384 * 05 37 48.8918505048 +31 57 38.406264336           ~ 1 0
82 2MASS J05374896+3159352 NIR 05 37 48.964 +31 59 35.29           ~ 1 0
83 2MASS J05374901+3201154 NIR 05 37 49.0053349800 +32 01 15.199428756           ~ 1 0
84 2MASS J05374905+3200297 NIR 05 37 49.057 +32 00 29.77           ~ 1 0
85 2MASS J05374906+3201268 NIR 05 37 49.0619930592 +32 01 26.836599648           ~ 1 0
86 2MASS J05374925+3159373 NIR 05 37 49.2192961656 +31 59 37.647620664           ~ 1 0
87 2MASS J05374924+3159541 * 05 37 49.2490036104 +31 59 53.972790360           ~ 1 0
88 2MASS J05374925+3159213 Y*O 05 37 49.253 +31 59 21.38           ~ 2 0
89 [CYY99] H2 6 ? 05 37 49.26 +31 59 55.2           ~ 2 0
90 2MASS J05374932+3158309 * 05 37 49.3311917784 +31 58 30.819932652           ~ 1 0
91 2MASS J05374935+3157595 NIR 05 37 49.355 +31 57 59.57           ~ 1 0
92 2MASS J05374939+3159366 Y*O 05 37 49.393 +31 59 36.66           ~ 2 0
93 2MASS J05374940+3200308 Y*O 05 37 49.3955099819 +32 00 30.919685155           M0 4 0
94 [CYY99] NIRS 31 * 05 37 49.4501145885 +32 00 28.146013407           ~ 1 0
95 2MASS J05374951+3159436 NIR 05 37 49.5091792656 +31 59 43.704985524           ~ 1 0
96 2MASS J05374975+3201233 Y*O 05 37 49.752 +32 01 23.30           ~ 2 0
97 2MASS J05374982+3159480 Y*O 05 37 49.824 +31 59 48.02           ~ 2 0
98 JCMTSE J053750.4+315914 Y*O 05 37 49.9 +31 59 10           ~ 4 0
99 2MASS J05374990+3159191 NIR 05 37 49.906 +31 59 19.19           ~ 2 0
100 2MASS J05374998+3159068 Y*O 05 37 49.983 +31 59 06.87           ~ 2 0
101 2MASS J05375006+3159525 NIR 05 37 50.068 +31 59 52.54           ~ 2 0
102 HH 283 HH 05 37 50.08 +31 59 52.6           ~ 4 0
103 2MASS J05375009+3200074 Y*O 05 37 50.091 +32 00 07.50           ~ 2 0
104 2MASS J05375010+3159245 Y*O 05 37 50.1062500440 +31 59 24.551220444           ~ 2 0
105 2MASS J05375011+3200476 Y*O 05 37 50.111 +32 00 47.64           ~ 2 0
106 2MASS J05375029+3159035 Y*O 05 37 50.2239957960 +31 59 03.196015548           ~ 2 0
107 2MASS J05375028+3157562 NIR 05 37 50.2923620712 +31 57 56.331359784           ~ 1 0
108 2MASS J05375044+3159192 Y*O 05 37 50.445 +31 59 19.28           ~ 3 0
109 2MASS J05375047+3200496 NIR 05 37 50.4874819872 +32 00 49.568824260           ~ 1 0
110 2MASS J05375052+3158407 * 05 37 50.5247813088 +31 58 40.703394828           ~ 1 0
111 2MASS J05375056+3157569 Y*O 05 37 50.561 +31 57 56.91           ~ 2 0
112 2MASS J05375076+3200453 Y*O 05 37 50.7759534072 +32 00 45.696484368           ~ 2 0
113 2MASS J05375077+3200031 NIR 05 37 50.777 +32 00 03.17           ~ 1 0
114 2MASS J05375075+3157495 Y*O 05 37 50.8080174672 +31 57 49.883212260           ~ 2 0
115 2MASS J05375088+3159160 NIR 05 37 50.887 +31 59 16.04           ~ 2 0
116 2MASS J05375087+3200392 Y*O 05 37 50.8884075216 +32 00 39.259994688           ~ 1 0
117 2MASS J05375113+3200573 Y*O 05 37 51.130 +32 00 57.38           ~ 2 0
118 2MASS J05375114+3159262 NIR 05 37 51.1468221480 +31 59 26.293936272           ~ 1 0
119 2MASS J05375140+3158514 NIR 05 37 51.402 +31 58 51.45           ~ 1 0
120 2MASS J05375151+3158414 NIR 05 37 51.5094651528 +31 58 41.385447372           ~ 1 0
121 2MASS J05375168+3159253 NIR 05 37 51.684 +31 59 25.30           ~ 1 0
122 2MASS J05375175+3158003 NIR 05 37 51.752 +31 58 00.32           ~ 1 0
123 JCMTSF J053752.6+320008 IR 05 37 51.83 +32 00 04.0           ~ 2 0
124 [CYY99] H2 8 ? 05 37 51.85 +31 59 27.8           ~ 2 0
125 2MASS J05375189+3157480 * 05 37 51.8963522088 +31 57 47.966614956           ~ 1 0
126 [CYY99] H2 7 ? 05 37 51.90 +32 00 24.6           ~ 2 0
127 [CYY99] NIRS 155 IR 05 37 51.95 +31 57 59.6           ~ 1 0
128 2MASS J05375210+3159364 NIR 05 37 52.104 +31 59 36.44           ~ 1 0
129 2MASS J05375213+3159193 Y*O 05 37 52.1295593808 +31 59 19.336144992           ~ 2 0
130 2MASS J05375216+3201305 * 05 37 52.1476019928 +32 01 30.253250640           ~ 1 0
131 2MASS J05375217+3200196 NIR 05 37 52.1735446080 +32 00 19.463733396           ~ 1 0
132 2MASS J05375221+3159248 Y*O 05 37 52.218 +31 59 24.86           ~ 2 0
133 UCAC3 245-50044 Y*O 05 37 52.2235859784 +32 00 43.901414352   16.13 14.82 14.76   G2 4 0
134 2MASS J05375224+3158335 NIR 05 37 52.2423915336 +31 58 33.464445924           ~ 1 0
135 2MASS J05375227+3158410 Y*O 05 37 52.275 +31 58 41.00           ~ 2 0
136 2MASS J05375253+3158065 NIR 05 37 52.538 +31 58 06.57           ~ 1 0
137 [CYY99] NIRS 25 IR 05 37 52.60 +32 00 32.6           ~ 1 0
138 NAME AFGL 5157 IRS 2 * 05 37 52.6 +32 00 51           ~ 2 0
139 2MASS J05375262+3158138 NIR 05 37 52.6210988976 +31 58 14.076389784           ~ 1 0
140 2MASS J05375277+3200199 NIR 05 37 52.7633426112 +32 00 19.714010400           ~ 1 0
141 [CYY99] NIRS 28 IR 05 37 52.79 +32 00 30.1           ~ 1 0
142 2MASS J05375315+3158094 NIR 05 37 53.1544524072 +31 58 09.639273144           ~ 1 0
143 2MASS J05375320+3158252 Y*O 05 37 53.203 +31 58 25.25           ~ 2 0
144 2MASS J05375334+3158456 NIR 05 37 53.345 +31 58 45.63           ~ 1 0
145 2MASS J05375343+3159333 NIR 05 37 53.431 +31 59 33.37           ~ 1 0
146 HH 284 HH 05 37 53.46 +31 59 33.6           ~ 5 0
147 [CYY99] NIRS 36 IR 05 37 53.59 +32 00 13.9           ~ 1 0
148 2MASS J05375368+3158014 NIR 05 37 53.681 +31 58 01.41           ~ 1 0
149 [CYY99] NIRS 122 Y*O 05 37 53.7 +31 58 53           ~ 2 0
150 2MASS J05375370+3157473 NIR 05 37 53.6974033776 +31 57 47.574030276           ~ 1 0
151 [CYY99] NIRS 20 Y*O 05 37 53.7 +32 00 40           ~ 2 0
152 [CYY99] H2 9 ? 05 37 53.86 +31 59 28.3           ~ 2 0
153 ZTF J053753.86+320034.6 RS* 05 37 53.8672935528 +32 00 34.477305228           ~ 3 0
154 [CYY99] NIRS 32 IR 05 37 53.88 +32 00 22.5           ~ 1 0
155 [CYY99] H2 10 ? 05 37 53.93 +31 59 53.2           ~ 2 0
156 [CYY99] NIRS 24 IR 05 37 54.01 +32 00 32.6           ~ 1 0
157 [CYY99] H2 11 ? 05 37 54.10 +32 00 17.5           ~ 2 0
158 2MASS J05375411+3159597 NIR 05 37 54.112 +31 59 59.79           ~ 1 0
159 [CYY99] H2 12 ? 05 37 54.27 +31 58 36.6           ~ 1 0
160 2MASS J05375427+3158365 Y*O 05 37 54.2739129840 +31 58 36.731404668           ~ 2 0
161 2MASS J05375444+3201084 * 05 37 54.4372130520 +32 01 08.548146444           ~ 1 0
162 2MASS J05375459+3158299 Y*O 05 37 54.5727412248 +31 58 29.980316568           ~ 2 0
163 2MASS J05375468+3159027 NIR 05 37 54.6888517104 +31 59 03.419870532           ~ 1 0
164 2MASS J05375476+3158343 Y*O 05 37 54.7627793664 +31 58 34.506689304           ~ 2 0
165 2MASS J05375478+3158170 Y*O 05 37 54.790 +31 58 17.00           ~ 2 0
166 2MASS J05375489+3159561 * 05 37 54.8901489840 +31 59 56.348731968           ~ 1 0
167 2MASS J05375491+3158205 Y*O 05 37 54.9031530144 +31 58 20.639416008           ~ 2 0
168 2MASS J05375532+3158317 NIR 05 37 55.3269100464 +31 58 31.751057568           ~ 1 0
169 2MASS J05375532+3158547 Y*O 05 37 55.3495270584 +31 58 54.972128316           ~ 2 0
170 2MASS J05375543+3159268 Y*O 05 37 55.433 +31 59 26.84           ~ 2 0
171 [CYY99] NIRS 57 Y*O 05 37 55.9 +31 59 50           ~ 2 0
172 2MASS J05375602+3159316 NIR 05 37 56.025 +31 59 31.70           ~ 1 0
173 2MASS J05375611+3158233 NIR 05 37 56.118 +31 58 23.31           ~ 1 0
174 2MASS J05375618+3158513 NIR 05 37 56.2029317448 +31 58 51.370026780           ~ 1 0
175 2MASS J05375624+3200005 NIR 05 37 56.2474368072 +32 00 00.642297060           ~ 1 0
176 2MASS J05375651+3158241 Y*O 05 37 56.5176075408 +31 58 24.325169664           ~ 2 0
177 [CYY99] NIRS 50 IR 05 37 56.58 +31 59 57.6           ~ 1 0
178 2MASS J05375662+3157479 NIR 05 37 56.6253400656 +31 57 48.186527940           ~ 1 0
179 2MASS J05375685+3159394 * 05 37 56.8511959512 +31 59 39.576516432           ~ 1 0
180 2MASS J05375686+3159128 NIR 05 37 56.864 +31 59 12.90           ~ 1 0
181 2MASS J05375706+3158433 NIR 05 37 57.0647162040 +31 58 43.429770156           ~ 1 0
182 GM 1-39 * 05 37 57.3 +32 00 43           ~ 6 0
183 2MASS J05375743+3159032 * 05 37 57.4579701168 +31 59 03.424260984           ~ 1 0
184 2MASS J05375749+3158018 NIR 05 37 57.4992697344 +31 58 01.928504244           ~ 1 0
185 2MASS J05375764+3159478 NIR 05 37 57.6386402880 +31 59 48.069822912           ~ 1 0
186 2MASS J05375797+3159356 NIR 05 37 57.980 +31 59 35.68           ~ 1 0
187 [CYY99] NIRS 116 IR 05 37 58.43 +31 59 01.7           ~ 1 0
188 2MASS J05375856+3159370 * 05 37 58.5620084112 +31 59 37.206155868           ~ 1 0
189 2MASS J05375922+3159519 * 05 37 59.2246910784 +31 59 52.112022000           ~ 1 0
190 NAME S255-2 IR 06 12 53.8 +17 59 22           ~ 49 0
191 MMB G192.600-00.048 Y*O 06 12 54.0100 +17 59 23.200           ~ 430 0
192 IC 2162 HII 06 13 04.1 +17 58 44           ~ 372 2

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