2006ApJ...649..888H


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.01CET20:09:52

2006ApJ...649..888H - Astrophys. J., 649, 888-893 (2006/October-1)

Millimeter multiplicity in NGC 6334 I and I(N).

HUNTER T.R., BROGAN C.L., MEGEATH S.T., MENTEN K.M., BEUTHER H. and THORWIRTH S.

Abstract (from CDS):

Using the Submillimeter Array (SMA), we have imaged the 1.3 mm continuum emission at the centers of the massive star-forming regions NGC 6334 I and I(N). In both regions, the SMA observations resolve the emission into multiple millimeter sources, with most of the sources clustered into areas only 10,000 AU in diameter. Toward NGC 6334 I, we find four compact sources: the two brightest (I-SMA1 and I-SMA2) are associated with previously known ammonia cores; I-SMA3 coincides with the peak of the compact H II region (NGC 6334 F), and I-SMA4 is a newly discovered object. While I-SMA3 exhibits a mixture of free-free and dust emission, the rest of the objects are dust cores. Toward NGC 6334 I(N), seven compact dust cores are found, one of which is associated with a faint centimeter source. With the exception of I-SMA3, none of the millimeter sources have infrared counterparts in Spitzer Space Telescope 3-8 µm images. Using a simple physical model for the dust continuum emission, we estimate that the mass of the interstellar material toward each of these compact objects is in the range of 3-66 M. The total mass in the compact objects appears to be similar in I and I(N). The small size of these groups of sources suggest that these objects are proto-Trapezia forming in the centers of clusters of low- to intermediate-mass stars.

Abstract Copyright:

Journal keyword(s): Infrared: Stars - ISM: individual (NGC 6334) - ISM: individual (NGC 6334 I(N)) - Stars: Formation - Submillimeter - Techniques: Interferometric

Nomenclature: Table 1: [HBM2006b] I-SMAN (Nos I-SMA1 to I-SMA4), [HBM2006b] I(N)-SMAN (Nos I(N)-SMA1 to I(N)-SMA7).

Simbad objects: 22

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Number of rows : 22

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 NAME W 3 IRS 5 Cluster Cl* 02 25 42 +62 06.1           ~ 73 1
2 NAME Trapezium Cluster As* 05 35 16.5 -05 23 14           ~ 1486 1
3 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2733 2
4 3C 286 Sy1 13 31 08.2885060664 +30 30 32.960825108   17.51 17.25     ~ 3792 1
5 NGC 6334 HII 17 20 51 -36 06.9           ~ 595 0
6 [HBM2006b] I-SMA4 mm 17 20 53.099 -35 47 03.32           ~ 9 0
7 [HG83] IRS-I-2 IR 17 20 53.1 -35 46 59           ~ 15 0
8 [BHC2016] MM2 mm 17 20 53.188 -35 46 59.32           ~ 26 0
9 NAME NGC 6334-I Cl* 17 20 53.35 -35 47 01.5           ~ 279 0
10 [BHC2016] MM1 mm 17 20 53.415 -35 46 57.88           ~ 50 0
11 NAME NGC 6334F (C) HII 17 20 53.45 -35 47 02.6           ~ 209 1
12 NAME NGC 6334 I(N) smm 17 20 54 -35 45.0           ~ 127 1
13 [HBM2006b] I(N)-SMA6 mm 17 20 54.430 -35 45 19.34           ~ 8 1
14 [HBM2006b] I(N)-SMA4 mm 17 20 54.62 -35 45 08.5           ~ 9 0
15 [HBM2006b] I(N)-SMA2 mm 17 20 54.90 -35 45 06.8           ~ 7 0
16 [HBM2006b] I(N)-SMA7 mm 17 20 54.96 -35 44 57.3           ~ 5 0
17 JCMTSF J172055.2-354514 mm 17 20 55.00 -35 45 07.5           ~ 7 0
18 [HBM2006b] I(N)-SMA5 mm 17 20 55.08 -35 45 02.0           ~ 6 0
19 [HBM2006b] I(N)-SMA1 mm 17 20 55.21 -35 45 04.1           ~ 8 0
20 QSO B1730-130 QSO 17 33 02.70578476 -13 04 49.5481484   18 18.5 18.78 17.39 ~ 992 1
21 QSO B1921-293 BLL 19 24 51.05595514 -29 14 30.1210524   18.71 18.21 15.07   ~ 704 0
22 [HG83] IRS-I-1E IR 21 20 37.06 -35 31 20.2           ~ 6 0

    Equat.    Gal    SGal    Ecl

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2020.12.01-20:09:52

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