2007A&A...469..459T


C.D.S. - SIMBAD4 rel 1.7 - 2019.09.17CEST13:25:17

2007A&A...469..459T - Astronomy and Astrophysics, volume 469, 459-469 (2007/7-2)

VLT/NACO near-infrared imaging and spectroscopy of N159-5 in the LMC HII complex N159.

TESTOR G., LEMAIRE J.L., KRISTENSEN L.E., FIELD D. and DIANA S.

Abstract (from CDS):

We present high-resolution near-infrared imaging of the compact HII region N159-5 and its immediate environment in the giant-star forming region N159 in the LMC. N159-5 was observed at high spatial resolution ∼0.11"-0.25" in the K-band using the ESO Very Large Telescope UT4 (VLT), equipped with the NAOS adaptive optics system. Our data reveal that N159-5 has a complex morphology formed mainly by two wings and probably a single central bright star, embedded in diffuse emission of ∼4.5" diameter. A remarkable embedded tight cluster of approximatively the same size, containing at least 38 faint stars coinciding with N159-5, is also detected. Such clusters can be found in galactic HII regions like the star-forming regions SH2 269 or M42. At the location of the radio peak, especially in the bright western wing, this cluster is rich in stars. Spectroscopic observations reveal that the diffuse region is constituted mainly of dust continuum and that the bright star #2-55 could be of type O8 V. A comparison with the radio observation flux of N159-5 published in the literature seems to show that the bright star #2-55 is not the only ionization source of N159-5. Towards N159-5 molecular H2 emission is detected. A model of the region is proposed.

Abstract Copyright:

Journal keyword(s): galaxies: Magellanic Clouds - ISM: individual objects: N159-5 - stars: formation

VizieR on-line data: <Available at CDS (J/A+A/469/459): table3.dat>

Nomenclature: Table 3: [TLK2007] 1-NNN N=93 among (Nos 1-8 to 1-191), [TLK2007] 2-NNN (Nos 2-2 to 2-114, 2-116). Fig.3, Text: [TLK2007] N159-5-A (Nos A, B), [TLK2007] Globule G N=1.

Status in Simbad:  could be processed

Simbad objects: 31

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Number of rows : 31

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14239 1
2 M 42 HII 05 35 17.3 -05 23 28           ~ 3647 0
3 NAME Ori A MoC 05 38 -07.1           ~ 2600 0
4 LHA 120-N 158 HII 05 39 11.220 -69 30 13.65           ~ 79 0
5 LHA 120-N 159W MoC 05 39 32.510 -69 46 02.74           ~ 66 0
6 AT20G J053937-694526 Rad 05 39 37.5 -69 45 26           ~ 11 1
7 [CC98] LI-LMC 1501 W * 05 39 37.60 -69 46 11.5           O7.5V 9 1
8 NGC 2079 Cl* 05 39 39.0 -69 46 24           ~ 62 0
9 2MASS J05394188-6946122 Y*O 05 39 41.886 -69 46 12.21           O6.5V 18 1
10 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 241 2
11 [HW94] 2 Rad 05 39 52.1 -69 45 10           ~ 4 0
12 [MHD2004] 199 * 05 39 58.92 -69 45 31.5           ~ 2 0
13 [HW94] 3 Rad 05 39 59.1 -69 45 16           ~ 4 0
14 2MASS J05395936-6945263 Y*O 05 39 59.363 -69 45 26.31           ~ 14 0
15 2MASS J05400074-6947129 Y*O 05 40 00.741 -69 47 12.91 14.808 15.690 15.072   14.336 ~ 32 0
16 [MHD2004] 287 * 05 40 01.68 -69 44 37.8           ~ 2 0
17 [MHD2004] 317.1 * 05 40 02.77 -69 44 59.3           ~ 2 0
18 [MHD2004] 318 * 05 40 02.81 -69 44 38.9           ~ 2 0
19 LHA 120-N 159S MoC 05 40 03.750 -69 51 01.62           ~ 42 0
20 [MHD2004] 353 * 05 40 03.80 -69 44 33.0           ~ 2 0
21 NAME N159 Blob in LMC HII 05 40 04.2 -69 44 43           ~ 32 0
22 [NKN2005] N159-Y4 Cl* 05 40 04.4 -69 45 08           ~ 4 1
23 2MASS J05400448-6944375 Y*O 05 40 04.483 -69 44 37.53           ~ 11 0
24 [DMM94] J0540-697 Rad 05 40 04.49 -69 44 37.6           ~ 7 1
25 MACHO 76.9728.2933 * 05 40 05.4078336479 -69 44 44.186114963     16.93 16.07   ~ 18 0
26 [MHD2004] 404 * 05 40 05.42 -69 44 44.0           ~ 2 0
27 MACHO 76.9728.2926 * 05 40 06.7730447749 -69 44 22.826705037     16.46 15.76   ~ 3 0
28 [MHD2004] 457 * 05 40 06.87 -69 44 38.5           ~ 2 0
29 [MHD2004] 517 Y*O 05 40 09.49 -69 44 53.5           ~ 9 0
30 LHA 120-N 159E MoC 05 40 10.980 -69 44 35.84           ~ 39 0
31 LBN 196.49-01.60 HII 06 14 38.40 +13 49 44.7           ~ 160 1

    Equat.    Gal    SGal    Ecl

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2019.09.17-13:25:17

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