2019MNRAS.486.5263M


Query : 2019MNRAS.486.5263M

2019MNRAS.486.5263M - Mon. Not. R. Astron. Soc., 486, 5263-5288 (2019/July-2)

Feedback from massive stars at low metallicities: MUSE observations of N44 and N180 in the Large Magellanic Cloud.

McLEOD A.F., DALE J.E., EVANS C.J., GINSBURG A., KRUIJSSEN J.M.D., PELLEGRINI E.W., RAMSAY S.K. and TESTI L.

Abstract (from CDS):

We present MUSE integral field data of two H II region complexes in the Large Magellanic Cloud: N44 and N180. Both regions consist of a main superbubble and a number of smaller, more compact H II regions that formed on the edge of the superbubble. For a total of 11 H II regions, we systematically analyse the radiative and mechanical feedback from the massive O-type stars on the surrounding gas. We exploit the integral field property of the data and the coverage of the He II λ5412 line to identify and classify the feedback-driving massive stars and from the estimated spectral types and luminosity classes we determine the stellar radiative output in terms of the ionizing photon flux Q0. We characterize the H II regions in terms of their sizes, morphologies, ionization structure, luminosity and kinematics, and derive oxygen abundances via emission line ratios. We analyse the role of different stellar feedback mechanisms for each region by measuring the direct radiation pressure, the pressure of the ionized gas, and the pressure of the shock-heated winds. We find that stellar winds and ionized gas are the main drivers of H II region expansion in our sample, while the direct radiation pressure is up to three orders of magnitude lower than the other terms. We relate the total pressure to the star formation rate per unit area, ΣSFR, for each region and find that stellar feedback has a negative effect on star formation, and sets an upper limit to ΣSFR as a function of increasing pressure.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: massive - ISM: abundances - H ii regions - Magellanic Clouds

Nomenclature: Table 3: [MDE2019] MUSE N44-N (Nos 1-5). Table 4: [MDE2019] MUSE N180-N (Nos 1-6). Fig. 1, Table 5: [MDE2019] NNNN main (Nos N44 main, N180 main), [MDE2019] NNNN A (Nos N44 A-N44 D, N180 A-N180 D), [MDE2019] N44 B1 N=1.

Simbad objects: 77

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Number of rows : 77
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11178 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7084 0
3 LHA 120-N 79 HII 04 52 00 -69 22.5           ~ 64 1
4 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 255 0
5 [WBD97] N44 6 * 05 21 37.6538288784 -67 54 48.561025068   13.26 13.38     O8III 2 0
6 NGC 1929 Cl* 05 21 38.16 -67 54 43.2   14.0       ~ 25 0
7 [OM95] LH 47-14 * 05 21 43.3100850480 -67 55 06.597704136 14.115 15.083 15.232   15.538 O9.5V 4 0
8 [OM95] LH 47-15 * 05 21 43.5622123872 -67 57 08.699012712 13.24 14.21 14.26     O7.5V 4 0
9 SK -67 82 * 05 21 46.7673819456 -67 53 38.158414836   13.05 13.15     O9III 5 0
10 [OM95] LH 47-47 * 05 21 47.3398777776 -67 55 40.793852424 12.546 13.350 13.543   13.728 O9.5V 5 0
11 [MDE2019] MUSE N44-3 * 05 21 47.9368030128 -67 54 55.023262488           O8.5V 1 0
12 [OM95] LH 47-58 * 05 21 48.2411735544 -67 56 22.380654840 13.195 14.062 14.10   14.097 O9.5III 3 0
13 [OM95] LH 47-66 * 05 21 49.1769060864 -67 56 50.036597448 13.709 14.586 14.767   14.906 O9V 3 0
14 [OM95] LH 47-71 * 05 21 49.8366635760 -67 57 07.641380520 14.52 15.37 15.34 15.461   O6:V((f)) 3 0
15 [MDE2019] MUSE N44-1 * 05 21 50.04 -67 52 24.1           O8.5III 1 0
16 AL 151 Em* 05 21 50.4402723504 -67 53 13.642634364 12.181 12.91 13.03 13.38 13.267 O9.5III 7 0
17 [MDE2019] MUSE N44-4 * 05 21 53.8013914320 -67 54 09.834761268           O9V 1 0
18 2MASS J05215494-6753534 * 05 21 54.9572427048 -67 53 53.521506204 13.10 13.99 14.24     O9V 3 0
19 [OM95] LH 47-131 * 05 21 56.6004246960 -67 57 33.713169876 14.06 15.01 15.23     O9.5V 3 0
20 [OM95] LH 47-138 * 05 21 57.0783922536 -67 56 59.631565740 13.16 13.598 13.681 14.491   O8.5V+ne 4 0
21 [OM95] LH 47-154 * 05 21 57.8754041976 -67 56 25.565230464 11.96 12.875 13.031 13.314   O7III 6 0
22 CD-68 294 As* 05 21 58 -67 57.3           ~ 110 0
23 2MASS J05215843-6754279 * 05 21 58.4408432232 -67 54 27.968779620 12.95 13.88 14.13     O8.5V 3 0
24 [OM95] LH 47-182 EB* 05 21 59.0051755920 -67 58 34.853371644 13.74 14.69 14.56   14.351 O5.5V 8 0
25 [OM95] LH 47-186 Y*? 05 21 59.5383041712 -67 57 21.152301300 12.82 13.78 14.03   14.70 O7.5V 7 0
26 [OM95] LH 47-191 * 05 21 59.6925703680 -67 57 37.237731732 11.773 12.877 12.864   13.014 O5III 5 0
27 [OM95] LH 48-26 * 05 22 01.8755816424 -67 54 16.702388964 12.93 13.88 14.09 14.337   O9.5V 3 0
28 [OM95] LH 47-222 * 05 22 02.6271521160 -67 56 23.943315732 13.563 14.550 14.810   15.064 O8V 3 0
29 2MASS J05220270-6754228 * 05 22 02.7184728408 -67 54 22.931774496 13.03 13.97 14.20     O9V 3 0
30 [OM95] LH 47-237 s*b 05 22 03.7946391984 -67 55 28.855488972 11.981 12.61 12.68   12.835 B0.5Iab 5 0
31 2MASS J05220417-6754281 * 05 22 04.1938475352 -67 54 28.142672076 13.00 13.97 14.23     O8.5V 3 0
32 LHA 120-N 44 EmO 05 22 06.9 -67 56 46           ~ 195 1
33 [OM95] LH 47-275 * 05 22 07.2670674240 -67 56 03.667505316 12.68 12.456 12.639 13.185   O8.5V 3 0
34 2MASS J05220745-6758028 * 05 22 07.4855733240 -67 58 02.895120048 13.87 14.89 15.04     O9.5V 3 0
35 [OM95] LH 47-280 * 05 22 07.4913345024 -67 56 45.720888108 12.21 13.198 13.304 13.603   O7III 4 0
36 [MDE2019] MUSE N44-5 * 05 22 09.36 -67 58 31.2           O9.5V 2 0
37 [OM95] LH 47-320 * 05 22 11.8845322776 -67 56 41.073891540 13.31 14.114 14.304 14.710   B9.5V 3 0
38 SK -67 85 * 05 22 13.4840489784 -67 53 38.088139632 11.905 12.72 12.92   12.955 O8.5I 7 0
39 2MASS J05221392-6758372 * 05 22 13.9389623352 -67 58 37.314042960 12.88 13.98 14.20     O7V((f)) 6 0
40 [OM95] LH 47-381 * 05 22 17.8063549680 -67 57 09.252176868 12.03 12.896 12.997 13.531   O8.5III 4 0
41 2MASS J05222036-6757481 * 05 22 20.3922125112 -67 57 48.116657268 13.03 14.15 14.41     O6.5V(f) 3 0
42 2MASS J05222057-6756482 * 05 22 20.5715452080 -67 56 48.274007928 12.752 13.770 13.908   14.155 O9.5V 3 0
43 [OM95] LH 48-111 * 05 22 21.6264789384 -67 54 08.932815252 13.400 14.315 14.339   14.449 O5V((f*)) 4 0
44 [OM95] LH 47-433 * 05 22 22.7478217392 -67 58 05.898625536 12.79 13.897 14.026 14.315   O9.5V 3 0
45 NGC 1937 As* 05 22 29 -67 53.7           ~ 46 1
46 [OM95] LH 48-166 * 05 22 29.9780996808 -67 54 02.991943656 14.09 14.99 15.02     O8V 3 0
47 [L72] LH 48-9 * 05 22 37.1357550840 -67 53 22.789012092     13.46     O7III 3 0
48 LH 49 As* 05 22 55 -68 03.6           ~ 31 1
49 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17478 0
50 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1190 2
51 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2019 2
52 [MDE2019] MUSE N180-4 * 05 48 13.700 -70 02 04.31           O7III 1 0
53 MGSD LH 117 144 * 05 48 30.8663415912 -70 04 18.462233532     15.23     O9.5V 2 0
54 [MDE2019] MUSE N180-6 * 05 48 35.8368605136 -70 06 48.051243036           B0.5III 1 0
55 [MDE2019] MUSE N180-5 * 05 48 37.940 -70 05 58.20           O8.5V 1 0
56 [L72] LH 117-13 * 05 48 39.0551560944 -70 04 58.556695296     14.24     O8.5V 5 0
57 MGSD LH 117 152 * 05 48 41.2086484296 -70 04 27.761198124     13.80     O8V 3 0
58 MGSD LH 117 206 * 05 48 42.0207666960 -70 05 22.734347640     15.06     O8V 2 0
59 [L72] LH 117-11 * 05 48 48.7248618960 -70 05 32.211980520     13.15     O3V 6 0
60 [MDE2019] MUSE N180-3 * 05 48 48.9536432088 -70 00 50.201588160           O8.5V 1 0
61 [MDE2019] MUSE N180-1 * 05 48 48.9765406128 -70 04 45.872559660           O9.5V 1 0
62 HD 270145 s*b 05 48 49.6513961040 -70 03 57.837376476 10.903 12.110 12.166     O6.5Iaf 48 1
63 MGSD LH 117 62 EB* 05 48 51.6429419832 -70 03 11.959176528     14.748 14.804 14.740 O9V 5 0
64 MGSD LH 117 140 * 05 48 52.6664725080 -70 04 16.291736688     13.52     O5V 4 1
65 MGSD LH 117 183 * 05 48 54.5914472136 -70 04 56.656611372   14.738 14.738 15.407   O9.5V 2 0
66 MGSD LH 117 14 EB* 05 48 54.6224884440 -70 02 29.792763024     14.688   14.547 O6.5V 6 0
67 NGC 2122 As* 05 48 55 -70 04.1     10.43     ~ 92 0
68 [L72] LH 117-30 * 05 48 57.6589559112 -70 03 34.057400796     14.94     O9 3 0
69 SSTISAGEMC J054859.52-695943.8 pA? 05 48 59.5318218840 -69 59 43.680584760 13.618 14.730 14.861   15.003 O7.5V 3 0
70 HH 1177 HH 05 49 02.3 -70 05 25           ~ 5 0
71 MGSD LH 117 19 * 05 49 04.7626831464 -70 02 37.225577544     15.25     O9.5 2 0
72 MGSD LH 117 43 * 05 49 09.0741030696 -70 03 05.124883284     14.08     O6.5V 3 0
73 LHA 120-N 180 HII 05 49 13 -70 06.4           ~ 35 0
74 MGSD LH 117 103 * 05 49 19.5126228736 -70 03 37.364216421   13.666 13.811 13.758   O9.5III 2 0
75 MGSD LH 118 182 EB* 05 49 21.3555539208 -70 06 29.779399044     13.860   14.017 O9.5III 5 0
76 MGSD LH 118 165 * 05 49 30.6095386632 -70 06 04.934732724   14.925 15.119 15.397   O9.5V 2 0
77 NGC 3603 OpC 11 15 10.8 -61 15 32           ~ 1068 1

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