2024PASJ...76..589T

Query : 2024PASJ...76..589T

2024PASJ...76..589T - Publ. Astron. Soc. Jap., 76, 589-615 (2024/August-0)

High-mass star formation in the Large Magellanic Cloud triggered by colliding H I flows.

TSUGE K., SANO H., TACHIHARA K., BEKKI K., TOKUDA K., INOUE T., MIZUNO N., KAWAMURA A., ONISHI T. and FUKUI Y.

Abstract (from CDS):

The galactic tidal interaction is a possible mechanism to trigger active star formation in galaxies. Recent analyses using H I data in the Large Magellanic Cloud (LMC) proposed that the tidally driven H I flow, the L-component, is colliding with the LMC disk, the D-component, and is triggering high-mass star formation toward the active star-forming regions R136 and N44. In order to explore the role of the collision over the entire LMC disk, we investigated the I-component, the collision-compressed gas between the L- and D-components, over the LMC disk, and found that $74\%$ of the O/WR stars are located toward the I-component, suggesting their formation in the colliding gas. We compared four star-forming regions (R136, N44, N11, and the N77-N79-N83 complex). We found a positive correlation between the number of high-mass stars and the compressed gas pressure generated by collisions, suggesting that pressure may be a key parameter in star formation.

Abstract Copyright: © The Author(s) 2024. Published by Oxford University Press on behalf of the Astronomical Society of Japan.

Journal keyword(s): ISM: atoms - Magellanic Clouds - stars: massive

Simbad objects: 47

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Number of rows : 47
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 Magellanic Stream HVC 00 32 -30.0           ~ 1079 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
4 NGC 604 HII 01 34 32.1 +30 47 01           ~ 608 0
5 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
6 NAME Magellanic Bridge HI 03 11 -77.5           ~ 522 1
7 LHA 120-N 77 EmO 04 50 -69.2           ~ 7 0
8 HSO BMHERICC J072.9711-69.3911 Cl* 04 51 53.082 -69 23 28.00           ~ 16 0
9 LHA 120-N 79 HII 04 52 00 -69 22.5           ~ 75 1
10 LHA 120-N 83 HII 04 54 15 -69 10.6           ~ 43 0
11 NGC 1760 HII 04 56 20.8 -66 32 13           ~ 32 0
12 HD 32228 WR* 04 56 34.666 -66 28 26.34   10.685 10.830     WC4+O9.5II: 96 0
13 NGC 1761 As* 04 56 39 -66 29.0     9.94     ~ 103 0
14 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 275 0
15 NGC 1763 As* 04 56 51.5 -66 24 25     9.40     ~ 169 3
16 LHA 120-N 92 As* 04 57 05.8 -68 44 58           ~ 32 0
17 NGC 1769 As* 04 57 44.5 -66 27 42           ~ 73 1
18 NGC 1773 HII 04 58 12.0 -66 21 36           ~ 55 1
19 NAME LMC 1 Supergiant Shell sh 04 59 41 -65 44.7           ~ 40 0
20 NAME LMC 8 Supergiant Shell sh 05 02 51 -70 33.3           ~ 34 0
21 LHA 120-N 105 EmO 05 09 57.1 -68 53 31           ~ 49 0
22 LHA 120-N 113 HII 05 13 21.7 -69 21 33           ~ 125 1
23 LHA 120-N 119 HII 05 18 39.2 -69 13 22           ~ 58 1
24 LHA 120-N 121 HII 05 18 58 -69 47.0           ~ 10 1
25 NGC 1918 SNR 05 19 04.50 -69 38 56.0           ~ 105 0
26 LHA 120-N 44 EmO 05 22 06.9 -67 56 46           ~ 211 1
27 NAME LMC 5 Supergiant Shell sh 05 22 42 -66 05.6           ~ 56 0
28 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
29 NGC 1948 As* 05 24 20.00 -66 24 12.0   10.81 10.61     ~ 110 0
30 SNR J052559-660453 SNR 05 26 00.4 -66 05 02     12.71     ~ 456 2
31 LHA 120-N 144 HII 05 26 42.5 -68 49 34           ~ 72 0
32 LHA 120-N 51 EmO 05 26 47 -67 31.1           ~ 46 0
33 NAME LMC 4 Supergiant Shell sh 05 31 33 -66 40.5           ~ 183 0
34 LHA 120-N 206A HII 05 31 56.0 -71 00 19           ~ 123 2
35 LHA 120-N 148 HII 05 32 10.9 -68 28 23           ~ 35 0
36 LHA 120-N 154 HII 05 35 04.8 -69 43 25           ~ 48 0
37 LHA 120-N 157 HII 05 35 49 -69 12.6           ~ 51 0
38 SH 2-233 HII 05 38 31.5 +35 51 19           ~ 71 1
39 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
40 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
41 IRAS 05358+3543 Y*O 05 39 09.92 +35 45 17.2           ~ 171 0
42 LHA 120-N 159W MoC 05 39 32.510 -69 46 02.74           ~ 103 0
43 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 293 2
44 LHA 120-N 159E MoC 05 40 10.980 -69 44 35.84           ~ 69 0
45 Mrk 116 AGN 09 34 02.1 +55 14 25           ~ 1179 1
46 NAME Musca Cld 12 23 -71.3           ~ 258 0
47 NAME Local Group GrG ~ ~           ~ 9325 0

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