2000ApJ...532L.145S

Query : 2000ApJ...532L.145S

2000ApJ...532L.145S - Astrophys. J., 532, L145-L148 (2000/April-1)

Large-scale structure of the Carina nebula.

SMITH N., EGAN M.P., CAREY S., PRICE S.D., MORSE J.A. and PRICE P.A.

Abstract (from CDS):

Observations obtained with the Midcourse Space Experiment (MSX) satellite reveal for the first time the complex mid-infrared morphology of the entire Carina Nebula (NGC 3372). On the largest size scale of ∼100 pc, the thermal infrared emission from the giant H II region delineates one coherent structure: a (somewhat distorted) bipolar nebula with the major axis perpendicular to the Galactic plane. The Carina Nebula is usually described as an evolved H II region that is no longer actively forming stars, clearing away the last vestiges of its natal molecular cloud. However, the MSX observations presented here reveal numerous embedded infrared sources that are good candidates for sites of current star formation. Several compact infrared sources are located at the heads of dust pillars or in dark globules behind ionization fronts. Because their morphology suggests a strong interaction with the peculiar collection of massive stars in the nebula, we speculate that these new infrared sources may be sites of triggered star formation in NGC 3372.

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Journal keyword(s): ISM: H II Regions - ISM: Individual: Name: Carina Nebula - Stars: Formation

Nomenclature: Table 1: [SEC2000] GLLL.ll+B.bb N=6.

Simbad objects: 23

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Number of rows : 23
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 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
2 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
3 NGC 3293 OpC 10 35 50.3 -58 14 04           ~ 327 0
4 NGC 3324 OpC 10 37 20.8 -58 37 26           ~ 145 1
5 [SEC2000] G287.28-0.88 IR 10 41 54 -59 45.3           ~ 1 0
6 Cl Bochum 10 OpC 10 42 14.2 -59 08 44   6.40 6.2     ~ 86 0
7 Cl Trumpler 14 OpC 10 43 56.0 -59 33 07   5.70 5.5     ~ 547 0
8 HD 93129 ** 10 43 57.462360 -59 32 51.27000 6.26 7.840 7.884 7.839   O2If*+O3.5V((f)) 208 1
9 Cl Collinder 228 OpC 10 44 00 -60 05.2           ~ 211 0
10 Cl Collinder 232 OpC 10 44 39.00 -59 33 36.0           ~ 72 0
11 Cl Trumpler 15 OpC 10 44 43.6 -59 22 07           ~ 229 0
12 [SEC2000] G287.73-0.92 IR 10 44 55 -60 00.2           ~ 2 0
13 Cl Trumpler 16 OpC 10 45 01.9 -59 42 00           ~ 510 0
14 NGC 3372 HII 10 45 02.23 -59 41 59.8           ~ 1071 2
15 IRAS 10430-5931 HII 10 45 02.4 -59 47 10           ~ 16 0
16 * eta Car s*b 10 45 03.545808 -59 41 03.95124 6.37 7.03 6.48 6.123 4.41 LBV 2543 0
17 [SEC2000] G287.84-0.82 Cl* 10 46 04 -59 58.0           ~ 5 1
18 [SEC2000] G287.93-0.99 IR 10 46 05 -60 09.5           ~ 3 0
19 [SEC2000] G287.73-0.59 IR 10 46 08 -59 42.7           ~ 1 0
20 Cl Bochum 11 OpC 10 47 06.3 -60 05 55           ~ 95 0
21 [SEC2000] G288.07-0.80 IR 10 47 47 -60 03.3           ~ 2 0
22 W 49 SFR 19 10 20 +09 07.7           ~ 601 1
23 W 51 SNR 19 23 50 +14 06.0           ~ 1352 1

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