2021ApJ...906...24D


C.D.S. - SIMBAD4 rel 1.7 - 2021.06.25CEST02:36:05

2021ApJ...906...24D - Astrophys. J., 906, 24-24 (2021/January-1)

A VLBA survey of radio stars in the Orion Nebula Cluster. II. Astrometry.

DZIB S.A., FORBRICH J., REID M.J. and MENTEN K.M.

Abstract (from CDS):

From Very Long Baseline Array (VLBA) observations we previously identified a population of 123 young stellar systems with nonthermal radio emission toward the core of the Orion Nebula Cluster (ONC). We find optical sources in the Gaia DR2 catalog for 34 of them within 0.''2 of the radio positions. Most of the radio sources are likely companions of Gaia detections. However, there are 11 stars whose VLBA positions differ from Gaia by <1.6 mas, and some of these radio sources probably are the direct counterparts of the optical stars. We are able to obtain radio proper motions for 23 stars. Combining the stellar proper motions derived from the VLBA and Gaia DR2 data we find the global motion and velocity dispersion of the ONC to be (µα*, µδ) = (1.20 ± 0.09, 0.18 ± 0.09) mas yr–1 and (σµα_*,σµδ_) = (0.84 ± 0.09, 1.30 ± 0.09) mas yr–1. Finally, we looked for ordered motions by estimating the means of scalar and vectorial products, which results in =-0.61±1.00 km s–1 and =0.57±0.95 km s–1. These do not show indications that the young stellar cluster is in expansion, contraction, or rotation.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): Star formation - Radio astrometry - Non-thermal radiation sources

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 148

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Number of rows : 148

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 ICRF J051728.1-052040 QSO 05 17 28.1096179909 -05 20 40.837164387           ~ 20 0
2 2MASX J05222318-0725133 Sy1 05 22 23.1963326249 -07 25 13.482411225   17.37 16.50 16.25   ~ 25 0
3 ICRF J052953.5-051941 QSO 05 29 53.53344426 -05 19 41.6167114       19.40   ~ 36 1
4 ICRF J053207.5-030707 G 05 32 07.5193292 -03 07 07.036403           ~ 22 0
5 COUP 38 X 05 34 47.97 -05 20 54.3           ~ 6 0
6 V* KM Ori Or* 05 34 55.9722690466 -05 23 13.040121857 14.142 12.883 11.918   10.064 K5Ve 92 0
7 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2061 1
8 2MASS J05350627-0522027 Y*O 05 35 06.2817443816 -05 22 02.666011260   14.2 18.810   14.347 K5 45 0
9 [FRM2016] 11 Rad 05 35 06.42810 -05 24 21.2106           ~ 3 0
10 JW 300 Y*O 05 35 07.2738103018 -05 22 26.550756150     17.876   14.043 M3: 43 0
11 2MASS J05350968-0523558 Y*O 05 35 09.6752680 -05 23 55.914015     24.50   18.207 ~ 24 0
12 V* V1326 Ori BY* 05 35 09.7683440740 -05 23 26.899188471 16.267 14.776 13.806   11.678 K8 61 0
13 2MASS J05350976-0521282 Y*O 05 35 09.7710182905 -05 21 28.349512744   13.8 18.916   14.344 M0,K5-K7 40 1
14 2MASS J05350989-0523384 Y*O 05 35 09.9000028310 -05 23 38.519731963     20.27   15.402 M7.25 24 0
15 [FRM2016] 25 Rad 05 35 10.02718 -05 21 22.1006           ~ 3 0
16 2MASS J05351026-0521571 Y*O 05 35 10.2622087981 -05 21 57.119969605   13.9     15.171 M5.5 27 0
17 V* V1487 Ori A * 05 35 10.4924865475 -05 22 45.685748632   15.896 14.820   12.201 M0.5 50 0
18 V* V1487 Ori Or* 05 35 10.50600 -05 22 45.5412           M0.5+M2 49 0
19 MLLA 507 Y*O 05 35 10.61664 -05 22 55.9812           ~ 17 0
20 V* LQ Ori Or* 05 35 10.7308773985 -05 23 44.691927985 15.088 13.527 12.455   10.159 K8 68 1
21 MLLA 379 * 05 35 10.95116 -05 23 26.6173           ~ 10 1
22 [FRM2016] 47 Rad 05 35 11.27574 -05 22 17.2670           ~ 3 0
23 COUP 427 * 05 35 11.557 -05 24 48.15           ~ 15 0
24 [FRM2016] 55 Rad 05 35 11.60228 -05 20 21.9419           ~ 3 0
25 COUP 444 * 05 35 11.72782 -05 25 12.7569           ~ 11 0
26 COUP 450 TT* 05 35 11.8040700 -05 21 49.266135           K5V 53 0
27 [FRM2016] 70 Rad 05 35 11.98560 -05 20 32.2496           ~ 3 0
28 [FRM2016] 72 Rad 05 35 12.07171 -05 22 12.2590           ~ 3 0
29 V* V2224 Ori Or* 05 35 12.1261550784 -05 24 33.776665308     15.19 14.66 15.940 M8.25 32 0
30 V* LV Ori Or* 05 35 12.5987834306 -05 23 44.110059038 14.669 13.863 12.912   11.015 K1V 50 0
31 [FRM2016] 86 Rad 05 35 12.61240 -05 21 45.4773           ~ 3 0
32 COUP 504 * 05 35 12.84705 -05 21 33.9755           ~ 9 0
33 COUP 510 X 05 35 12.98346 -05 23 54.9487           ~ 13 0
34 [FRM2016] 122 Rad 05 35 13.41612 -05 22 52.7685           ~ 3 0
35 Parenago 1820 Y*O 05 35 13.5186502134 -05 22 19.550872932   13.1 16.160   13.254 M1.2 46 0
36 [FRM2016] 129 Rad 05 35 13.55569 -05 21 12.5325           ~ 3 0
37 2MASS J05351356-0523552 Y*O 05 35 13.56 -05 23 55.3           ~ 35 0
38 [FRM2016] 133 Rad 05 35 13.63367 -05 24 09.1621           ~ 4 0
39 [FRM2016] 135 Rad 05 35 13.67709 -05 21 49.3156           ~ 3 0
40 [FRM2016] 137 Rad 05 35 13.71170 -05 25 08.4494           ~ 3 0
41 COUP 593 Y*O 05 35 13.92733 -05 23 20.1123           ~ 23 0
42 [EC2006] MM14 Y*O 05 35 13.93039 -05 24 09.4197           ~ 14 0
43 COUP 594 * 05 35 13.97231 -05 24 09.8193           ~ 11 0
44 Parenago 1823 Y*O 05 35 14.0506648456 -05 23 38.471270173     15.078   12.238 K5 43 0
45 COUP 598 X 05 35 14.07492 -05 20 12.5574           ~ 7 0
46 V* V2254 Ori Or* 05 35 14.11296 -05 22 22.7316           B 299 2
47 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2083 1
48 COUP 608 X 05 35 14.18597 -05 26 20.8200           ~ 6 0
49 [FRM2016] 170 Rad 05 35 14.27553 -05 22 35.9393           ~ 3 0
50 [FRM2016] 176 Rad 05 35 14.31409 -05 21 17.8338           ~ 3 0
51 COUP 625 X 05 35 14.3352900 -05 23 17.395700           ~ 16 0
52 [FRM2016] 182 Rad 05 35 14.40372 -05 21 27.1653           ~ 3 0
53 COUP 639 X 05 35 14.5013870 -05 22 38.696699           ~ 26 0
54 [FRM2016] 188 Rad 05 35 14.53419 -05 23 10.5434           ~ 3 0
55 COUP 640 X 05 35 14.54523 -05 23 15.9753           ~ 15 0
56 COUP 648 * 05 35 14.6549817553 -05 22 33.738218939   15.891 14.779   12.008 K7 53 0
57 2MASS J05351465-0520424 Y*O 05 35 14.6608967482 -05 20 42.356163087   14.1 21.68   14.262 ~ 28 0
58 NAME ORBS Y*O 05 35 14.665 -05 22 11.06           ~ 21 1
59 ** SMN 2A * 05 35 14.73076 -05 22 29.8298           ~ 20 0
60 [FRM2016] 205 Rad 05 35 14.76172 -05 21 54.0635           ~ 3 0
61 COUP 662 * 05 35 14.8982780 -05 22 25.410079           ~ 36 0
62 V* V1330 Ori BY* 05 35 14.9157450029 -05 22 39.209342428   15.040 13.940   11.632 K4 69 0
63 COUP 672 * 05 35 14.9489682326 -05 23 39.240467090   15.249 14.247   12.055 ~ 34 0
64 Brun 580 * 05 35 15.268 -05 22 56.83 15.256 14.367 13.465   11.383 G6-G8 48 1
65 [FRM2016] 227 Rad 05 35 15.34788 -05 22 18.0953           ~ 3 0
66 [FRM2016] 230 Rad 05 35 15.36855 -05 22 33.3992           ~ 3 0
67 [FRM2016] 232 Rad 05 35 15.37753 -05 22 30.1165           ~ 3 0
68 2MASS J05351551-0523373 Y*O 05 35 15.5090 -05 23 37.180         13.821 ~ 51 1
69 V* V1501 Ori Or* 05 35 15.5536588458 -05 25 14.150036747   15.163 14.077   11.527 K4-M1 57 0
70 COUP 723 X 05 35 15.60361 -05 21 26.8917           ~ 8 0
71 V* V348 Ori Or* 05 35 15.6353012097 -05 22 56.457494793   14.352 13.274   10.987 G8-K1 58 0
72 COUP 734 Ir* 05 35 15.760 -05 23 38.38         15.184 ~ 20 0
73 * tet01 Ori E SB* 05 35 15.7719090349 -05 23 09.890008011           G2IV 89 0
74 NAME tet01 Ori A1 SB* 05 35 15.82020 -05 23 14.2891           ~ 11 1
75 NAME tet01 Ori A2 * 05 35 15.8217 -05 23 14.097           ~ 10 0
76 * tet01 Ori A Ae* 05 35 15.8252169327 -05 23 14.332546552 5.87 6.75 6.73 6.42 6.21 B0V 465 1
77 TCC 57 Y*O 05 35 16.07 -05 23 27.8           ~ 44 0
78 * tet01 Ori B EB* 05 35 16.1338018078 -05 23 06.780627482 7.71 8.20 7.96     B1V 351 2
79 V* V2284 Ori Or* 05 35 16.1932341819 -05 21 32.381506224   13.2 18.08   14.509 M3e 30 0
80 COUP 801 * 05 35 16.3761310695 -05 24 03.352207848     14.06     K4-K7 36 0
81 COUP 806 * 05 35 16.4190 -05 22 12.216           ~ 15 0
82 * tet01 Ori C SB* 05 35 16.4664092288 -05 23 22.897102710 4.20 5.15 5.13 4.91 4.73 O7Vp 1307 1
83 NAME Trapezium Cluster As* 05 35 16.5 -05 23 14           ~ 1511 1
84 [FRM2016] 314 Rad 05 35 16.65312 -05 20 27.1120           ~ 3 0
85 * tet01 Ori F Em* 05 35 16.7269150268 -05 23 25.197018616 9.928 10.075 10.122   9.652 B8 37 0
86 TCC 74 Y*O 05 35 16.76210 -05 23 28.0209           ~ 42 0
87 V* V1279 Ori Or* 05 35 16.7648570441 -05 24 04.281291528   14.815 13.722   11.441 M0.9e 52 0
88 COUP 841 * 05 35 16.940 -05 22 09.90         19.101 ~ 17 0
89 [FRM2016] 327 Rad 05 35 16.96329 -05 23 33.3581           ~ 3 0
90 V* MR Ori Or* 05 35 16.9782526518 -05 21 45.336791295 11.386 10.876 10.578   9.836 A2:Vv 55 0
91 COUP 856 Y*O 05 35 17.04 -05 23 39.7   12.9     13.224 K8e 51 1
92 MLLA 178 * 05 35 17.12653 -05 24 34.3822           ~ 9 0
93 V* AE Ori Or* 05 35 17.2187907436 -05 21 31.713678048           K4-K7 51 0
94 HD 37024 Or* 05 35 17.3543049827 -05 22 35.810670025     16.29   13.91 K0.7 61 0
95 COUP 874 * 05 35 17.406 -05 22 03.90           ~ 17 0
96 COUP 896 * 05 35 17.50534 -05 21 06.1892           ~ 10 0
97 COUP 897 * 05 35 17.55393 -05 21 45.6020     19.21     ~ 17 1
98 JW 558 Y*O 05 35 17.680 -05 23 40.89 16.251 15.348 15.343   14.390 M5.9e 73 0
99 MLLA 157 Y*O 05 35 17.7371985663 -05 24 43.699635751     19.12   15.289 M6.5e 21 0
100 [FRM2016] 373 Rad 05 35 17.86356 -05 22 15.5343           ~ 3 0
101 V* MT Ori Or* 05 35 17.9484704886 -05 22 45.471640008 14.524 13.208 12.229   10.063 K2 97 0
102 2MASS J05351802-0522052 EB* 05 35 18.0305971884 -05 22 05.395532385     19.06   14.694 K0-K3 32 0
103 V* V2325 Ori Or* 05 35 18.2067193250 -05 23 35.905759805 16.366 14.920 13.923   11.431 M0 48 0
104 [FRM2016] 398 Rad 05 35 18.32178 -05 25 05.2571           ~ 3 0
105 V* V1229 Ori Or* 05 35 18.3705822175 -05 22 37.440220823 15.941 14.257 13.251   10.987 K0 82 0
106 MLLA 968 * 05 35 18.3899046961 -05 20 20.339014520   14.5     15.821 K8-M1.5,M1.5-M3,M3-M4 20 0
107 [FRM2016] 408 Rad 05 35 18.51886 -05 21 28.3480           ~ 3 0
108 V* MV Ori Or* 05 35 18.6744934402 -05 20 33.695850393 14.842 13.736 12.725   10.236 G1e 41 0
109 [FRM2016] 426 Rad 05 35 18.94932 -05 25 07.6808           ~ 3 0
110 Brun 633 * 05 35 19.1394564749 -05 20 38.746384666 13.390 12.971 12.523   11.138 A4-A7 32 0
111 COUP 1023 Em* 05 35 19.2128226301 -05 22 50.684661096     17.099   13.882 K5 40 0
112 [FRM2016] 440 Rad 05 35 19.47491 -05 22 58.8421           ~ 3 0
113 [FRM2016] 456 Rad 05 35 19.88099 -05 23 57.2292           ~ 3 0
114 V* V491 Ori Or* 05 35 20.0527592160 -05 21 05.915174797   16.647 15.421   12.533 K7 47 0
115 V* V1517 Ori Or* 05 35 20.1349215057 -05 21 33.623797449   17.191 15.830   12.816 M0 32 0
116 V* V1338 Ori BY* 05 35 20.1660666616 -05 26 39.122010013 15.869 14.434 13.479 12.76 11.443 K0 48 0
117 V* TU Ori Or* 05 35 20.2161676914 -05 20 57.020341759 15.217 13.736 12.664   10.037 G9 54 0
118 JW 644 Y*O 05 35 20.2732790334 -05 25 04.040552331     17.06 13.57 15.980 ~ 31 0
119 COUP 1100 * 05 35 20.3983262652 -05 22 13.636779333   17.885 16.618   13.149 K 33 0
120 [FRM2016] 470 Rad 05 35 20.47689 -05 24 20.3192           ~ 3 0
121 2MASS J05352063-0522455 Y*O 05 35 20.6412015151 -05 22 45.555957481   14.8 19.80   15.729 M1 31 0
122 V* V1230 Ori Or* 05 35 20.7209093902 -05 21 44.340751344 9.886 10.041 9.736 9.25 8.822 B1 86 0
123 V* V1399 Ori Or* 05 35 21.0492702938 -05 23 48.989001884 14.154 13.231 12.376   10.605 G8 60 0
124 2MASS J05352208-0524327 Y*O 05 35 22.0941300273 -05 24 32.873910372     13.97 12.47 14.479 ~ 32 0
125 Brun 676 Y*O 05 35 22.2635055702 -05 20 29.256675755 15.523 14.142 13.260   11.719 K3 41 0
126 V* V1231 Ori Or* 05 35 22.3250651928 -05 24 14.248401364     14.04 14.33   M1 41 1
127 [FRM2016] 509 Rad 05 35 22.35274 -05 25 02.3194           ~ 3 0
128 [FRM2016] 512 Rad 05 35 22.64322 -05 23 05.9911           ~ 3 0
129 JW 724 * 05 35 22.8353619156 -05 25 47.683705130   14.2     14.554 M5.5 15 0
130 * tet02 Ori A SB* 05 35 22.9022511214 -05 24 57.817182421 5.37 6.30 6.39 6.30 6.35 O9.5IVp 506 0
131 COUP 1249 * 05 35 23.4948904846 -05 20 01.676639755         18.859 ~ 18 0
132 V* V1342 Ori Or* 05 35 23.5986602918 -05 25 26.510023339   13.9 17.759   14.585 M3-M3.5e 27 0
133 2MASS J05352365-0523463 Y*O 05 35 23.6551162659 -05 23 46.339801643   12.9 13.95   14.491 M1 28 0
134 2MASS J05352398-0525098 Y*O 05 35 23.9854563209 -05 25 09.904804374 16.121 17.448 17.537   15.144 M1 32 0
135 V* V2415 Ori Or* 05 35 24.0295424844 -05 23 13.885780883         17.089 ~ 23 0
136 V* V2421 Ori Or* 05 35 24.2575584904 -05 25 18.762889163 16.188 16.193 15.210   12.724 K2.5e 43 0
137 COUP J053524.4-052401 * 05 35 24.452 -05 24 01.02   14.0     15.225 M1-M3: 31 0
138 [FRM2016] 534 Rad 05 35 24.82751 -05 21 01.0182           ~ 3 0
139 2MASS J05352502-0524383 Y*O 05 35 25.030 -05 24 38.50         17.342 M7 20 0
140 Brun 685 Y*O 05 35 25.0873160656 -05 23 46.749430156   15.325 14.296   12.164 ~ 43 0
141 * tet02 Ori B Y*O 05 35 26.4004225055 -05 25 00.792538337 5.36 6.29 6.38 6.29 11.050 B2-B5 180 0
142 COUP 1428 X 05 35 29.60 -05 23 12.0           ~ 7 0
143 * tet02 Ori C Or* 05 35 31.4312599324 -05 25 16.368488408   7.80 8.24     B4V 121 1
144 2MASS J05395993-0514412 AG? 05 39 59.9351218621 -05 14 41.261924578           ~ 12 0
145 QSO B0539-057 QSO 05 41 38.08338 -05 41 49.4284     20.4 20.70   ~ 222 2
146 Gaia DR2 3022323749816621568 * 05 45 23.3585063880 -05 39 37.826820112           ~ 1 0
147 PMN J0545-0539 Rad 05 45 23.36 -05 39 38.0           ~ 4 0
148 NGC 2110 Sy2 05 52 11.3760694860 -07 27 22.489931610   14.77 13.51 11.86   ~ 605 1

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2021.06.25-02:36:05

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