2003ApJ...598.1100R

Query : 2003ApJ...598.1100R

2003ApJ...598.1100R - Astrophys. J., 598, 1100-1106 (2003/December-1)

A cluster of compact radio sources in NGC 2024 (Orion B).

RODRIGUEZ L.F., GOMEZ Y. and REIPURTH B.

Abstract (from CDS):

We present deep 3.6 cm radio continuum observations of the H II region NGC 2024 in Orion B obtained using the Very Large Array in its A configuration,(1) with 0".2 angular resolution. We detect a total of 25 compact radio sources in a region of 4'x4'. We discuss the nature of these sources and its relation to the infrared and X-ray objects in the region. At least two of the radio sources are obscured proplyds whose morphology can be used to restrict the location of the main ionizing source of the region. This cluster of radio sources is compared with others that have been found in regions of recent star formation.

Abstract Copyright: ∼

Journal keyword(s): Stars: Binaries: General - Galaxy: Open Clusters and Associations: Individual: NGC Number: NGC 2024 - Stars: Formation - Stars: Pre-Main-Sequence

Nomenclature: Fig.2, Table 1: [RGR2003] VLA NN (Nos 1-25).

CDS comments: Calibrators 1331+305 and 0541-056 (J2000.0 coordinates) are respectively RORF 1328+307 and RORF 0539-057

Simbad objects: 39

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Number of rows : 39
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 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
2 NGC 1579 OpC 04 30 03.4 +35 19 30           ~ 92 1
3 * 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
4 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
5 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
6 NAME Horsehead Nebula DNe 05 40 59.0 -02 27 30           ~ 555 0
7 NGC 2024 1 Y*O 05 41 37.8554929272 -01 54 36.640829556   13.58 12.17     B0.5V 60 0
8 2MASS J05413786-0154323 Y*O 05 41 37.8659106888 -01 54 31.950497088           ~ 9 0
9 QSO B0539-057 Bla 05 41 38.08336552 -05 41 49.4283917     20.4 20.70   ~ 279 1
10 2MASS J05414134-0153326 Y*O 05 41 41.3524630 -01 53 32.838938           ~ 12 0
11 2MASS J05414138-0154445 Y*O 05 41 41.39 -01 54 44.6           ~ 6 0
12 2MASS J05414148-0154390 Y*O 05 41 41.49 -01 54 39.1           ~ 7 0
13 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1498 0
14 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1198 1
15 [BCB89] IRS 24 Y*O 05 41 43.45 -01 56 42.5           ~ 5 0
16 2MASS J05414356-0153567 Y*O 05 41 43.56 -01 53 56.7           ~ 4 0
17 [RGR2003] VLA 8 Rad 05 41 43.92 -01 54 34.2           ~ 3 0
18 [MCK88] NGC 2024 FIR 4 Y*O 05 41 44.00 -01 54 42.0           ~ 55 0
19 LCGR FIR 5 6 Rad 05 41 44.48 -01 55 42.2           ~ 6 0
20 [MCK88] NGC 2024 FIR 5 cor 05 41 44.6 -01 55 38           ~ 98 0
21 2MASS J05414482-0154251 Y*O 05 41 44.82 -01 54 25.1           ~ 9 0
22 [MCK88] NGC 2024 FIR 6 IR 05 41 45.00 -01 56 01.0           ~ 56 0
23 [RGR2003] VLA 12 Rad 05 41 45.05 -01 54 54.7           ~ 2 0
24 [BCB89] IRS 2b Y*O 05 41 45.490 -01 54 28.78           O8V 57 1
25 CXOU J054145.5-015427 Y*O 05 41 45.518 -01 54 27.03           ~ 7 0
26 [RGR2003] VLA 17 Rad 05 41 45.554 -01 55 25.86           ~ 2 0
27 [RGR2003] VLA 18 Rad 05 41 45.75 -01 54 57.9           ~ 2 0
28 [BCB89] IRS 2 Y*O 05 41 45.81 -01 54 29.8           B 105 0
29 Cl* NGC 2024 BSC 93 Y*O 05 41 46.11 -01 54 14.8           ~ 7 0
30 CXOU J054146.1-015622 Y*O 05 41 46.1557130 -01 56 22.208619           ~ 6 0
31 [RGR2003] VLA 22 Rad 05 41 46.23 -01 56 54.6           ~ 2 0
32 2MASS J05414655-0154469 Y*O 05 41 46.55 -01 54 47.0           ~ 4 0
33 2MASS J05414821-0156020 Y*O 05 41 48.21 -01 56 02.0           ~ 6 0
34 [BCB89] IRS 4 Y*O 05 41 50.9767785000 -01 55 07.043455596           ~ 8 0
35 LDN 1630 DNe 05 45.5 -00 59           ~ 392 0
36 NAME GGD 12-15 OpC 06 10 48.0 -06 13 15           ~ 159 1
37 GGD 14 HH 06 10.8 -06 12           ~ 54 1
38 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
39 NAME Arches Cluster Cl* 17 45 50.5 -28 49 28           ~ 792 0

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