2015ApJS..219...41M

Query : 2015ApJS..219...41M

2015ApJS..219...41M - Astrophys. J., Suppl. Ser., 219, 41 (2015/August-0)

X-ray and radio observations of the massive star-forming region IRAS 20126+4104.

MONTES V.A., HOFNER P., ANDERSON C. and ROSERO V.

Abstract (from CDS):

We present results from Chandra ACIS-I and Karl G. Jansky Very Large Array 6 cm continuum observations of the IRAS 20126+4104 massive star-forming region. We detect 150 X-ray sources within the 17'x17' ACIS-I field, and a total of 13 radio sources within the 9.'2 primary beam at 4.9 GHz. Among these observtions are the first 6 cm detections of the central sources reported by Hofner et al., namely, I20N1, I20S, and I20var. A new variable radio source is also reported. Searching the 2MASS archive, we identified 88 near-infrared (NIR) counterparts to the X-ray sources. Only four of the X-ray sources had 6 cm counterparts. Based on an NIR color-color analysis and on the Besanon simulation of Galactic stellar populations, we estimate that approximately 80 X-ray sources are associated with this massive star-forming region. We detect an increasing surface density of X-ray sources toward the massive protostar and infer the presence of a cluster of at least 43 young stellar objects within a distance of 1.2 pc from the massive protostar.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: individual: IRAS 20126+4104 - radio continuum: stars - stars: formation - stars: pre-main sequence - X-rays: stars

VizieR on-line data: <Available at CDS (J/ApJS/219/41): table1.dat table4.dat table5.dat>

Nomenclature: Table 1: [MHA2015] CXO JHHMMSS.s+DDMMSS.s N=150, Table 4: [MHA2015] VLA GLL.llll+B.bbbb N=13.

Status at CDS : All or part of tables of objects will be ingested in SIMBAD with priority 1.

Simbad objects: 156

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Number of rows : 156
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 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
2 QSO B2005+40 Bla 20 07 44.9449261536 +40 29 48.603352020   18.5 19.00 20.3   ~ 319 1
3 ZTF J201346.92+411541.7 RS* 20 13 46.9336850616 +41 15 41.664318012           ~ 3 0
4 [MHA2015] CXO J201347.6+411441.8 X 20 13 47.61 +41 14 41.8           ~ 1 0
5 [MHA2015] CXO J201348.1+411046.8 X 20 13 48.06 +41 10 46.8           ~ 1 0
6 [MHA2015] CXO J201348.3+411007.1 X 20 13 48.28 +41 10 07.1           ~ 1 0
7 2MASS J20135225+4113332 * 20 13 52.2615361368 +41 13 33.219047028           ~ 1 0
8 ZTF J201353.90+411455.5 LP* 20 13 53.9148728184 +41 14 55.486477968           ~ 3 0
9 [MHA2015] CXO J201355.8+411629.0 X 20 13 55.79 +41 16 29.1           ~ 1 0
10 2MASS J20140039+4116323 * 20 14 00.3878366448 +41 16 32.352910032           ~ 1 0
11 ZTF J201401.03+411830.8 LP* 20 14 01.0340394888 +41 18 30.917921760           ~ 3 0
12 ZTF J201402.75+411428.7 EB* 20 14 02.7556633704 +41 14 28.792074876           ~ 3 0
13 2MASS J20140508+4120310 * 20 14 05.0941590696 +41 20 30.956098992           ~ 1 0
14 [MHA2015] CXO J201405.9+411758.9 X 20 14 05.88 +41 17 58.8           ~ 1 0
15 [MHA2015] CXO J201407.3+411215.8 X 20 14 07.26 +41 12 15.8           ~ 1 0
16 2MASS J20140890+4112037 * 20 14 08.9023750680 +41 12 03.524441904           ~ 1 0
17 [MHA2015] CXO J201408.9+411055.9 X 20 14 08.91 +41 10 55.8           ~ 1 0
18 [MHA2015] CXO J201409.9+411043.7 X 20 14 09.92 +41 10 43.8           ~ 1 0
19 [MHA2015] CXO J201410.5+411439.1 X 20 14 10.46 +41 14 39.1           ~ 1 0
20 [MHA2015] CXO J201411.3+410734.9 X 20 14 11.33 +41 07 34.9           ~ 1 0
21 [MHA2015] CXO J201412.0+411336.9 X 20 14 11.95 +41 13 36.9           ~ 1 0
22 [MHA2015] CXO J201412.2+412056.2 X 20 14 12.16 +41 20 56.2           ~ 1 0
23 2MASS J20141245+4110520 * 20 14 12.4477401048 +41 10 52.009031640           ~ 1 0
24 ATO J303.5524+41.2210 RS* 20 14 12.6024390720 +41 13 15.967585560           ~ 5 0
25 2MASS J20141346+4113490 * 20 14 13.4560170720 +41 13 49.009679400           ~ 1 0
26 ZTF J201413.76+411716.5 RS* 20 14 13.7750519832 +41 17 16.451913228           ~ 3 0
27 [MHA2015] CXO J201414.1+412106.9 X 20 14 14.05 +41 21 06.9           ~ 1 0
28 ZTF J201416.33+411620.5 RS* 20 14 16.3436235480 +41 16 20.519785020           ~ 3 0
29 [MHA2015] CXO J201417.8+410957.6 X 20 14 17.77 +41 09 57.6           ~ 1 0
30 ZTF J201418.06+411512.5 RS* 20 14 18.0672128352 +41 15 12.573127728           ~ 3 0
31 [MHA2015] CXO J201418.4+411231.8 X 20 14 18.45 +41 12 31.8           ~ 1 0
32 [MHA2015] CXO J201419.1+411813.4 X 20 14 19.12 +41 18 13.4           ~ 1 0
33 2MASS J20141947+4113033 * 20 14 19.4820629928 +41 13 03.267710904           ~ 1 0
34 2MASS J20141982+4111558 * 20 14 19.8225360312 +41 11 55.859585712           ~ 1 0
35 2MASS J20141999+4114154 * 20 14 19.9858123296 +41 14 15.292204404           ~ 1 0
36 [MHA2015] CXO J201420.4+412136.9 X 20 14 20.39 +41 21 36.9           ~ 1 0
37 [MHA2015] CXO J201421.8+412432.6 X 20 14 21.84 +41 24 32.6           ~ 1 0
38 ZTF J201423.44+410853.6 RS* 20 14 23.441 +41 08 53.64           ~ 3 0
39 2MASS J20142498+4113320 * 20 14 24.9854084040 +41 13 32.005267284           ~ 1 0
40 2MASS J20142524+4118090 NIR 20 14 25.245 +41 18 09.03           ~ 1 0
41 ZTF J201425.34+411517.9 RS* 20 14 25.3532504304 +41 15 17.993666088           ~ 3 0
42 2MASS J20142559+4113055 NIR 20 14 25.599 +41 13 05.59           ~ 1 0
43 IRAS 20126+4104 Y*O 20 14 25.8816769656 +41 13 36.879427236           B2.5-B0.5 469 0
44 [MHA2015] CXO J201426.0+411331.7 X 20 14 26.00 +41 13 31.7           ~ 2 0
45 [HCO2007] S cm 20 14 26.025 +41 13 31.71           ~ 3 0
46 [HCO2007] N1 cm 20 14 26.036 +41 13 32.54           ~ 5 0
47 [MHA2015] CXO J201426.2+411327.9 X 20 14 26.20 +41 13 27.9           ~ 2 0
48 [HCO2007] I20var cm 20 14 26.238 +41 13 28.07           ~ 5 0
49 [MHA2015] CXO J201426.3+412218.2 X 20 14 26.32 +41 22 18.2           ~ 1 0
50 ZTF J201426.33+411802.7 RS* 20 14 26.3395466448 +41 18 02.683028376           ~ 3 0
51 [MHA2015] CXO J201426.4+412403.1 X 20 14 26.42 +41 24 03.1           ~ 1 0
52 HD 228515 ** 20 14 26.616432 +41 12 10.14516   11.392 10.835 10.712   OB- 8 0
53 ZTF J201426.68+411300.9 RS* 20 14 26.6959183344 +41 13 00.928404336           ~ 3 0
54 2MASS J20142681+4113429 * 20 14 26.8063814760 +41 13 43.011841548           ~ 1 0
55 2MASS J20142690+4113288 NIR 20 14 26.908 +41 13 28.80           ~ 1 0
56 2MASS J20142710+4115166 * 20 14 27.1014466512 +41 15 16.626653496           ~ 1 0
57 2MASS J20142737+4115331 * 20 14 27.3707289744 +41 15 33.183733572           ~ 1 0
58 ZTF J201427.37+410944.1 RS* 20 14 27.3857269992 +41 09 44.145755280           ~ 3 0
59 [MHA2015] CXO J201427.8+410741.4 X 20 14 27.84 +41 07 41.4           ~ 1 0
60 2MASS J20142791+4113033 NIR 20 14 27.9290051663 +41 13 03.331722009           ~ 1 0
61 2MASS J20142808+4109539 NIR 20 14 28.089 +41 09 53.95           ~ 1 0
62 2MASS J20142817+4113170 Y*O 20 14 28.1766955584 +41 13 17.124520368           ~ 2 0
63 2MASS J20142838+4113517 Y*O 20 14 28.3806468432 +41 13 51.726117216           ~ 2 0
64 [MHA2015] CXO J201429.0+412137.1 X 20 14 29.04 +41 21 37.2           ~ 1 0
65 [MHA2015] CXO J201429.6+410607.9 X 20 14 29.60 +41 06 07.9           ~ 1 0
66 2MASS J20142973+4114441 * 20 14 29.7307316736 +41 14 44.228156892           ~ 1 0
67 2MASS J20142976+4113229 * 20 14 29.7611641776 +41 13 22.826373564           ~ 1 0
68 2MASS J20142978+4113092 * 20 14 29.7784055784 +41 13 09.144614496           ~ 1 0
69 [MHA2015] CXO J201430.3+411328.7 X 20 14 30.34 +41 13 28.7           ~ 1 0
70 2MASS J20143037+4114305 NIR 20 14 30.379 +41 14 30.54           ~ 1 0
71 2MASS J20143086+4113220 * 20 14 30.8671720704 +41 13 21.926603496           ~ 1 0
72 2MASS J20143162+4112196 EB* 20 14 31.6337054917 +41 12 19.586686527           ~ 2 0
73 [MHA2015] CXO J201431.8+411038.3 X 20 14 31.78 +41 10 38.2           ~ 1 0
74 LS III +41 7 * 20 14 32.0540834712 +41 12 49.839556068   12.03 11.98     OB- 8 0
75 HD 228527 * 20 14 32.4506310288 +41 14 53.732782968   9.464 9.00     F8 6 0
76 [MHA2015] CXO J201432.7+411544.0 X 20 14 32.75 +41 15 44.0           ~ 1 0
77 2MASS J20143358+4112306 Y*O 20 14 33.5795637960 +41 12 30.518465940           ~ 2 0
78 [MHA2015] CXO J201433.7+411424.4 X 20 14 33.66 +41 14 24.4           ~ 1 0
79 [MHA2015] CXO J201433.9+410712.5 X 20 14 33.90 +41 07 12.5           ~ 1 0
80 ZTF J201433.95+411213.1 EB* 20 14 33.96 +41 12 13.1           ~ 3 0
81 ZTF J201434.31+411150.3 EB* 20 14 34.3210107624 +41 11 50.345213676           ~ 3 0
82 2MASS J20143452+4112550 * 20 14 34.5198866232 +41 12 54.954447444           ~ 1 0
83 2MASS J20143467+4110595 Y*O 20 14 34.6625991240 +41 10 59.561601600           ~ 2 0
84 2MASS J20143482+4117487 NIR 20 14 34.8218722080 +41 17 48.720859476           ~ 1 0
85 [MHA2015] CXO J201435.3+411502.5 X 20 14 35.34 +41 15 02.5           ~ 1 0
86 2MASS J20143626+4117265 * 20 14 36.2684186856 +41 17 26.476607184           ~ 1 0
87 [MHA2015] CXO J201436.3+411848.5 X 20 14 36.27 +41 18 48.5           ~ 1 0
88 2MASS J20143711+4113430 NIR 20 14 37.111 +41 13 43.10           ~ 1 0
89 2MASS J20143713+4115217 NIR 20 14 37.138 +41 15 21.75           ~ 1 0
90 2MASS J20143751+4110204 NIR 20 14 37.512 +41 10 20.47           ~ 1 0
91 2MASS J20143785+4111117 * 20 14 37.8517727952 +41 11 11.620353228           ~ 1 0
92 2MASS J20143843+4113024 * 20 14 38.4282421344 +41 13 02.430221304           ~ 1 0
93 2MASS J20143941+4111254 * 20 14 39.4088921184 +41 11 25.396524564           ~ 1 0
94 2MASS J20143956+4114465 * 20 14 39.5639708592 +41 14 46.503142368           ~ 1 0
95 ZTF J201440.05+411901.5 RS* 20 14 40.0604863632 +41 19 01.554135384           ~ 3 0
96 2MASS J20144043+4114295 * 20 14 40.4319292488 +41 14 29.462173152           ~ 1 0
97 2MASS J20144057+4116273 * 20 14 40.5822329328 +41 16 27.346538316           ~ 1 0
98 [MHA2015] CXO J201440.8+410849.6 X 20 14 40.76 +41 08 49.6           ~ 1 0
99 2MASS J20144089+4110369 * 20 14 40.8907535016 +41 10 36.966270972           ~ 1 0
100 ZTF J201441.02+411409.7 RS* 20 14 41.0321809704 +41 14 09.707087004           ~ 3 0
101 [MHA2015] CXO J201441.2+410443.4 X 20 14 41.24 +41 04 43.4           ~ 1 0
102 ZTF J201442.50+412030.4 RS* 20 14 42.5072479056 +41 20 30.435114300           ~ 4 0
103 [MHA2015] CXO J201442.7+411315.5 X 20 14 42.71 +41 13 15.5           ~ 1 0
104 [MHA2015] CXO J201443.1+411032.3 X 20 14 43.08 +41 10 32.3           ~ 1 0
105 2MASS J20144333+4113407 Y*O 20 14 43.3289128272 +41 13 40.603184976           ~ 2 0
106 [MHA2015] CXO J201443.7+411843.4 X 20 14 43.67 +41 18 43.4           ~ 1 0
107 [MHA2015] CXO J201443.9+411348.6 X 20 14 43.91 +41 13 48.6           ~ 1 0
108 2MASS J20144446+4112597 Y*O 20 14 44.4662917968 +41 12 59.508855720           ~ 2 0
109 2MASS J20144476+4107215 * 20 14 44.7608584512 +41 07 21.639529596           ~ 1 0
110 2MASS J20144529+4115389 * 20 14 45.2839874736 +41 15 38.682229716           ~ 1 0
111 2MASS J20144587+4113374 EB* 20 14 45.8742934896 +41 13 37.369853112           ~ 2 0
112 2MASS J20144595+4104046 * 20 14 45.9585283728 +41 04 04.735671924           ~ 1 0
113 2MASS J20144991+4113021 * 20 14 49.9098581784 +41 13 02.095638492           ~ 1 0
114 [MHA2015] CXO J201450.3+410547.2 X 20 14 50.28 +41 05 47.2           ~ 1 0
115 2MASS J20145031+4115169 * 20 14 50.3140992816 +41 15 16.996098168           ~ 1 0
116 2MASS J20145040+4109069 * 20 14 50.3997701688 +41 09 06.913406232           ~ 1 0
117 2MASS J20145136+4119470 * 20 14 51.3509368824 +41 19 47.087370228           ~ 1 0
118 2MASS J20145246+4113411 * 20 14 52.4700674856 +41 13 40.979038368           ~ 1 0
119 ZTF J201453.47+411312.4 EB* 20 14 53.4808252560 +41 13 12.390806892           ~ 3 0
120 2MASS J20145391+4111584 * 20 14 53.9039960280 +41 11 58.391508948           ~ 1 0
121 [MHA2015] CXO J201453.9+411512.1 X 20 14 53.91 +41 15 12.1           ~ 1 0
122 2MASS J20145458+4119168 * 20 14 54.5865955104 +41 19 16.854874896           ~ 1 0
123 [MHA2015] CXO J201455.9+410955.6 X 20 14 55.86 +41 09 55.5           ~ 1 0
124 [MHA2015] CXO J201456.7+410915.2 X 20 14 56.73 +41 09 15.2           ~ 1 0
125 2MASS J20145700+4116182 * 20 14 56.9987406912 +41 16 18.332834340           ~ 1 0
126 [MHA2015] CXO J201457.3+411459.3 X 20 14 57.29 +41 14 59.3           ~ 1 0
127 2MASS J20145791+4109095 NIR 20 14 57.910 +41 09 09.55           ~ 1 0
128 [MHA2015] CXO J201458.9+411829.5 X 20 14 58.85 +41 18 29.5           ~ 1 0
129 [MHA2015] CXO J201459.1+410815.6 X 20 14 59.07 +41 08 15.6           ~ 1 0
130 [MHA2015] CXO J201459.1+411749.7 X 20 14 59.13 +41 17 49.7           ~ 1 0
131 2MASS J20145921+4113454 * 20 14 59.2119091008 +41 13 45.461922312           ~ 1 0
132 ZTF J201501.33+411300.7 RS* 20 15 01.3448344992 +41 13 00.664432392           ~ 3 0
133 [MHA2015] CXO J201501.6+410732.7 X 20 15 01.58 +41 07 32.7           ~ 1 0
134 ZTF J201502.16+411925.7 RS* 20 15 02.1709175640 +41 19 25.741792848           ~ 3 0
135 [MHA2015] CXO J201502.4+410941.1 X 20 15 02.44 +41 09 41.1           ~ 1 0
136 2MASS J20150271+4115554 * 20 15 02.7135419808 +41 15 55.543691664           ~ 1 0
137 [MHA2015] CXO J201503.3+411809.7 X 20 15 03.26 +41 18 09.7           ~ 1 0
138 [MHA2015] CXO J201503.4+411635.6 X 20 15 03.39 +41 16 35.6           ~ 1 0
139 [MHA2015] CXO J201503.6+410851.9 X 20 15 03.60 +41 08 51.9           ~ 1 0
140 [MHA2015] CXO J201504.1+411309.7 X 20 15 04.13 +41 13 09.7           ~ 1 0
141 [MHA2015] CXO J201504.2+410928.7 X 20 15 04.24 +41 09 28.7           ~ 1 0
142 [MHA2015] CXO J201504.5+411110.1 X 20 15 04.48 +41 11 10.1           ~ 1 0
143 [MHA2015] CXO J201504.5+411026.4 X 20 15 04.52 +41 10 26.4           ~ 1 0
144 [MHA2015] CXO J201504.9+411925.5 X 20 15 04.92 +41 19 25.5           ~ 1 0
145 [MHA2015] CXO J201505.2+410914.6 X 20 15 05.25 +41 09 14.6           ~ 1 0
146 2MASS J20150584+4116191 * 20 15 05.8434428832 +41 16 19.216677324           ~ 1 0
147 [MHA2015] CXO J201507.2+410834.7 X 20 15 07.20 +41 08 34.7           ~ 1 0
148 [MHA2015] CXO J201508.8+411337.8 X 20 15 08.78 +41 13 37.8           ~ 1 0
149 2MASS J20150903+4109442 * 20 15 09.0277161864 +41 09 44.282247804           ~ 1 0
150 2MASS J20151023+4114396 * 20 15 10.2310463640 +41 14 39.612683400           ~ 1 0
151 2MASS J20151306+4113368 * 20 15 13.0573145088 +41 13 36.822461160           ~ 1 0
152 2MASS J20151334+4111226 * 20 15 13.3439452608 +41 11 22.696482912           ~ 1 0
153 HD 228590 * 20 15 14.3812716768 +41 15 31.874889564   10.30 9.505     ~ 3 0
154 [MHA2015] CXO J201515.3+411107.4 X 20 15 15.26 +41 11 07.4           ~ 1 0
155 [MHA2015] CXO J201518.4+411515.6 X 20 15 18.43 +41 15 15.6           ~ 1 0
156 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0

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