2004AJ....127.2252Z

Query : 2004AJ....127.2252Z

2004AJ....127.2252Z - Astron. J., 127, 2252-2261 (2004/April-0)

Compact radio sources in Orion: new detections, time variability, and objects in OMC-1S.

ZAPATA L.A., RODRIGUEZ L.F., KURTZ S.E. and O'DELL C.R.

Abstract (from CDS):

We present the analysis of four 3.6 cm radio continuum archival observations of Orion obtained using the Very Large Array in its A configuration, with 0".3 angular resolution. The observations were made during the period 1994-1997. In a region of 4'x4', we detect 77 compact radio sources. Of these sources, 54 are detected in one or more of the individual observations, and 36 of these show time variability (by more than 30%) between the observed epochs. A deep image made from averaging all data shows an additional 23 faint sources, in the range of 0.1 to 0.3 mJy. Of the 77 sources, 39 are new centimeter detections. However, only 9 of the 77 sources do not have a previously reported counterpart at near-infrared, optical, or X-ray wavelengths. In particular, we detect three faint sources in the OMC-1S region that may be related to the sources that power the multiple outflows that emanate from this part of the Orion Nebula.

Abstract Copyright: ∼

Journal keyword(s): ISM: Individual: Name: Orion - Radio Continuum - Stars: Formation - Stars: Pre-Main-Sequence

Nomenclature: Tables 2, 3, 4: [ZRK2004] NN (Nos 1-77) = [ZRK2004] SSs-MSSW N=77.

Simbad objects: 94

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Number of rows : 94
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 COUP 229 X 05 35 04.86 -05 23 02.6           ~ 7 0
2 2MASS J05350976-0521282 Or* 05 35 09.7707952200 -05 21 28.320259140   13.8 18.916   14.344 M0,K5-K7 51 1
3 V* V1487 Ori A Or* 05 35 10.4918753664 -05 22 45.681747240   15.896 14.820   12.201 M0.5 55 0
4 V* V1487 Ori Or* 05 35 10.50600 -05 22 45.5412           M0.5+M2 57 0
5 V* LQ Ori Or* 05 35 10.7315904000 -05 23 44.694430944 15.088 13.527 12.455   10.159 K8 77 1
6 2MASS J05351172-0523518 Or* 05 35 11.7236269824 -05 23 51.745722540   16.412 16.291   15.064 M4.4e 35 2
7 COUP 450 TT* 05 35 11.8040700 -05 21 49.266135           K5V 63 0
8 COUP 510 X 05 35 12.98346 -05 23 54.9487           ~ 15 0
9 2MASS J05351312-0522471 Or* 05 35 13.1124845952 -05 22 47.152267284         17.149 K: 23 0
10 COUP 530 X 05 35 13.20854 -05 22 54.7917           ~ 15 0
11 [EC2006] MM12 HII 05 35 13.41015 -05 24 11.1770           ~ 49 1
12 COUP 593 Y*O 05 35 13.9249648560 -05 23 20.155538292           ~ 27 0
13 NAME OMC-1 MoC 05 35 14 -05 22.4           ~ 1249 2
14 [BGF2020] SW1 Rad 05 35 14.01998 -05 22 23.2219           ~ 7 0
15 ALMA J053514.1055-052222.644 Y*O 05 35 14.0800 -05 22 22.199           ~ 33 0
16 [SEM2016] 280 Rad 05 35 14.140 -05 23 56.75           ~ 9 0
17 [OW94] 142-301 Or* 05 35 14.1616919088 -05 23 01.344854328         14.934 ~ 37 0
18 [DRS2009] 1186 * 05 35 14.29 -05 23 53.1   15.140 15.632   15.695 ~ 11 0
19 COUP 625 X 05 35 14.3352900 -05 23 17.395700           ~ 17 0
20 ALMA J053514.3589-052232.733 Y*O 05 35 14.3580 -05 22 32.726           ~ 111 0
21 Parenago 1843 Or* 05 35 14.3956325544 -05 23 33.621412344     15.052   12.251 M1 61 0
22 NAME OMC 1S PoC 05 35 14.5 -05 25 49           ~ 78 1
23 ALMA J053514.5010-052238.674 Y*O 05 35 14.5013870 -05 22 38.696699           ~ 29 0
24 [RLK73] IRc 2a Y*O 05 35 14.511 -05 22 30.40           ~ 113 0
25 COUP 658 Or* 05 35 14.7233591568 -05 23 22.891605324   12.2     14.105 M3e 47 0
26 MLLA 472 Y*? 05 35 14.79 -05 23 04.8           ~ 12 0
27 ALMA J053514.8064-052304.736 Y*O 05 35 14.8096053072 -05 23 04.766000100           ~ 7 0
28 2MASS J05351487-0523050 Y*O 05 35 14.8096053072 -05 23 04.766000100     21.20   17.119 ~ 23 0
29 ALMA J053514.8988-052225.416 Y*O 05 35 14.8982780 -05 22 25.410079           ~ 41 0
30 2MASS J05351493-0523289 Or* 05 35 14.9328513936 -05 23 29.017076748   12.3     14.335 ~ 42 0
31 [SEM2016] 357 * 05 35 15.070 -05 23 52.96           ~ 3 0
32 [SEM2016] 358 * 05 35 15.150 -05 23 53.63           ~ 3 0
33 [SEM2016] 364 Rad 05 35 15.180 -05 24 03.61           ~ 2 0
34 [SEM2016] 365 Rad 05 35 15.190 -05 23 32.55           ~ 2 0
35 COUP 690 Y*O 05 35 15.2105556000 -05 23 18.787585632           ~ 31 0
36 Parenago 1842 Or* 05 35 15.2608803288 -05 22 56.866892555 15.256 14.367 13.465   11.383 G6-G8 58 0
37 MLLA 391 Y*O 05 35 15.35340 -05 23 24.0418           ~ 23 0
38 JW 472 Y*O 05 35 15.3786876744 -05 22 25.382198136     16.592   14.030 M1.5 34 0
39 [OW94] 154-240 Y*O 05 35 15.3915621696 -05 22 40.091425644         15.432 ~ 24 0
40 ALMA J053515.3770-052225.374 * 05 35 15.424 -05 22 25.29     18.44   15.08 ~ 13 0
41 2MASS J05351543-0523454 Or* 05 35 15.4407504000 -05 23 45.455162568         13.084 ~ 43 0
42 TCC 32 Or* 05 35 15.5228426424 -05 23 37.385961360         13.821 ~ 54 1
43 [SEM2016] 400 Rad 05 35 15.630 -05 23 31.51           ~ 2 0
44 MAX 80 * 05 35 15.63580 -05 23 10.3109           ~ 4 0
45 Parenago 1866 Y*O 05 35 15.7306101925 -05 23 22.478611275   16.0 14.5   12.446 ~ 52 0
46 * tet01 Ori E Or* 05 35 15.7721814864 -05 23 09.889316700           G2IV 104 0
47 JW 489 Or* 05 35 15.7971242592 -05 23 26.560853196   12.3       ~ 71 0
48 * tet01 Ori A Ae* 05 35 15.8254015008 -05 23 14.334699480 5.87 6.75 6.73 6.42 6.21 B0V 508 0
49 Parenago 1867 Or* 05 35 15.8392729571 -05 23 22.470378723     13.645   12.102 Ke 86 0
50 TCC 47 Y*O 05 35 15.8500 -05 23 25.557           ~ 53 0
51 TCC 48 Y*O 05 35 15.86300 -05 23 10.7606           ~ 15 0
52 COUP 757 Y*O 05 35 15.9063376056 -05 23 37.966984584         15.212 ~ 41 0
53 V* V2279 Ori Or* 05 35 15.9506536656 -05 23 49.996939416 14.794 13.648 12.730   10.537 M0.5+M2 104 0
54 V* AC Ori Or* 05 35 16.0009377816 -05 23 52.972404288     14.875   12.337 F5e 63 1
55 [FRM2016] 266 * 05 35 16.0009377816 -05 23 52.972404288           ~ 7 0
56 TCC 57 Y*O 05 35 16.07 -05 23 27.8           ~ 47 0
57 TCC 54 Y*O 05 35 16.0707874104 -05 23 24.363423024           ~ 63 0
58 ALMA J053516.0742-052307.112 Y*O 05 35 16.07400 -05 23 07.0372           ~ 24 1
59 TCC 58 Y*? 05 35 16.09280 -05 23 23.0106           ~ 31 1
60 * tet01 Ori B EB* 05 35 16.1339860056 -05 23 06.784444248 7.71 8.20 7.96     B1V 380 1
61 LV 3 Or* 05 35 16.2879203016 -05 23 16.550843136   11.4     12.672 K3 76 0
62 TCC 65 Y*O 05 35 16.32060 -05 23 22.5317           ~ 41 2
63 ALMA J053516.3421-052249.089 Or* 05 35 16.3385615376 -05 22 49.063221336   13.3 17.09   13.972 M1.5e 39 0
64 [OW94] 163-322 * 05 35 16.34 -05 23 21.7           ~ 5 0
65 MLLA 588B Y*O 05 35 16.4800 -05 22 35.160           ~ 21 1
66 ALMA J053516.4813-052235.455 Or* 05 35 16.4917096944 -05 22 35.138253720     17.77   14.600 M4 36 0
67 ALMA J053516.5922-052250.366 Y*O 05 35 16.5957096840 -05 22 50.333146140           ~ 18 1
68 TCC 70 Y*O 05 35 16.61480 -05 23 16.0836           ~ 49 0
69 * tet01 Ori G Y*O 05 35 16.723 -05 23 16.56 14.712 13.704 13.678   13.081 K0.7 105 1
70 TCC 74 Y*O 05 35 16.76210 -05 23 28.0209           ~ 47 0
71 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
72 TCC 75 Y*O 05 35 16.82580 -05 23 25.9032           ~ 25 0
73 [OW94] 168-326 Y*O 05 35 16.85 -05 23 26.2           ~ 44 0
74 TCC 77 Y*O 05 35 16.851 -05 23 26.71           ~ 31 0
75 [OW94] 168-309 * 05 35 16.86 -05 23 09.8           ~ 3 0
76 [BSD98] 17 Y*O 05 35 16.89020 -05 23 38.0653           ~ 22 0
77 JW 532 Or* 05 35 16.9715533106 -05 22 48.569390818 15.882 16.353 16.446   14.777 M0 56 0
78 Parenago 1894 Or* 05 35 16.9826556312 -05 23 37.062626964 15.006 14.944 14.492   12.593 M2e 96 1
79 COUP 856 Or* 05 35 17.0598222040 -05 23 39.756219790   12.9     13.224 K8e 64 1
80 V* V2299 Ori Or* 05 35 17.0669790936 -05 23 34.044628704 14.962 14.224 13.322   11.118 K1 80 0
81 [OW94] 171-315 * 05 35 17.15 -05 23 15.5           ~ 4 0
82 [FRM2016] 344 * 05 35 17.22106 -05 23 26.5428           ~ 8 0
83 COUP 886 Y*O 05 35 17.3281483128 -05 23 41.377479180           ~ 33 0
84 HD 37024 Or* 05 35 17.3524325856 -05 22 35.734959444     16.29   13.91 K0.7 81 0
85 COUP 885 Y*? 05 35 17.4658995408 -05 23 21.079391424     15.82   12.967 K7-K8e 35 0
86 COUP 900 Or* 05 35 17.5625803008 -05 23 24.868652136   12.3       ~ 50 0
87 JW 558 Y*O 05 35 17.6729925216 -05 23 40.866823068 16.251 15.348 15.343   14.390 M5.9e 83 0
88 V* MT Ori Or* 05 35 17.9482748184 -05 22 45.477710148 14.524 13.208 12.229   10.063 K2 110 0
89 TCC 106 Or* 05 35 18.0446944104 -05 23 30.734779488           ~ 50 0
90 COUP 955 Or* 05 35 18.2434219200 -05 23 15.619377264   13.2 16.412   13.933 M2 43 0
91 V* V1229 Ori Or* 05 35 18.3705735744 -05 22 37.440079608 15.941 14.257 13.251   10.987 K0 92 0
92 V* V1337 Ori Or* 05 35 19.0682423832 -05 23 49.627404276   13.1 16.108   13.852 G8-K2 54 0
93 V* V1399 Ori Or* 05 35 21.0488798160 -05 23 49.016892876 14.154 13.231 12.376   10.605 G8 72 0
94 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1227 1

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