2011A&A...531A..19I


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.06CET15:06:39

2011A&A...531A..19I - Astronomy and Astrophysics, volume 531A, 19-19 (2011/7-1)

C+ emission from the Magellanic Clouds. II. [CII] maps of star-forming regions LMC-N 11, SMC-N 66, and several others.

ISRAEL F.P. and MALONEY P.R.

Abstract (from CDS):

We study the λ 158 µm [CII] fine-structure line emission from star-forming regions as a function of metallicity. We have measured and mapped the [CII] emission from the very bright HII region complexes N 11 in the LMC and N 66 in the SMC; as well as the SMC HII regions N 25, N 27, N 83/N 84, and N 88 with the FIFI instrument on the Kuiper Airborne Observatory. In both LMC and SMC, the ratio of [CII] line to CO line and to the far-infrared continuum emission is much higher than seen almost anywhere else, including Milky Way star-forming regions, and whole galaxies. In the low metallicity, low dust-abundance environment of the LMC and the SMC UV mean free path lengths are much greater than those in the higher-metallicity Milky Way. The increased photoelectric heating efficiencies cause significantly greater relative [CII] line emission strengths. At the same time, similar decreases in PAH abundances have the opposite effect by diminishing photoelectric heating rates. Consequently, in low-metallicity environments relative [CII] strengths are high but exhibit little further dependence on actual metallicity. Relative [CII] strengths are slightly higher in the LMC than in the SMC which has both lower dust and lower PAH abundances.

Abstract Copyright:

Journal keyword(s): ISM: clouds - galaxies: ISM - Magellanic Clouds - infrared: ISM - dust, extinction

Simbad objects: 56

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Number of rows : 56

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 IC 10 G 00 20 23.16 +59 17 34.7   13.6 9.5     ~ 983 0
2 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10604 1
3 NGC 267 HII 00 48 02.6 -73 16 39           ~ 51 0
4 LHA 115-N 19 HII 00 48 06 -73 08.7           ~ 59 0
5 LHA 115-N 26 PN 00 48 08.624 -73 14 54.62 14.70 15.22 14.31   14.57 ~ 53 1
6 DEM S 38 HII 00 48 09.1 -73 14 09           ~ 18 0
7 LHA 115-N 25 Cl* 00 48 09.12 -73 14 19.1           ~ 37 1
8 LIN 106 Em* 00 48 09.2551884497 -73 14 15.992346701   13.93 13.75 14.70 14.47 O8V 32 0
9 [RLB93] SMC-B2 3 MoC 00 48 10.5 -73 14 49           ~ 6 0
10 DEM S 39 Em* 00 48 18.1 -73 10 19     16.2     ~ 10 0
11 LHA 115-N 27 Em* 00 48 24.0 -73 05 50           ~ 58 0
12 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9131 1
13 NGC 346 Cl* 00 59 05.090 -72 10 33.24           ~ 441 0
14 SNR B0057-72.2 SNR 00 59 27.40 -72 10 10.7   12.37 12.57     ~ 214 0
15 NAME SMC Bar PoG 01 05 -72.6           ~ 188 0
16 NGC 456 HII 01 13 44.4 -73 17 26           ~ 112 0
17 LIN 500 Em* 01 13 50.896 -73 18 01.03   13.36 12.5 13.78 14.62 ~ 62 0
18 LIN 499 Al* 01 13 51.9726051433 -73 15 47.959017598   15.27 15.14 16.03 15.46 ~ 22 0
19 IRAS 01124-7332 FIR 01 13 52.5 -73 16 57           ~ 3 1
20 LHA 115-N 83C SNR 01 14 00.0 -73 17 08           ~ 67 0
21 LHA 115-N 84C Em* 01 14 17.17 -73 15 49.4   14.65 14.4     O9V 31 0
22 LHA 115-N 84 HII 01 14 27.7 -73 12 51           ~ 60 0
23 LHA 115-N 84A Em* 01 14 38.10 -73 18 25.5     12.5     ~ 26 1
24 NGC 460 Cl* 01 14 41.6 -73 17 51           ~ 37 1
25 LHA 115-N 84D Em* 01 14 44.827 -73 20 44.80     15.6     ~ 12 0
26 IRAS 01133-7336 FIR 01 14 45.3 -73 20 42           ~ 7 0
27 LHA 115-N 84B Em* 01 14 47.2333215215 -73 19 46.568937598   14.57 14.15 15.33 15.01 ~ 23 0
28 DEM S 152 HII 01 14 54.1 -73 19 45           ~ 14 1
29 [M2002] SMC 75984 * 01 15 14.64 -72 20 19.4   15.12 15.35     B0III 10 0
30 LIN 518 Be* 01 15 45.8837641066 -73 20 40.308358737   15.94 15.78     Be 15 0
31 LHA 115-N 88A HII 01 24 07.823 -73 09 03.77   13.25 12.18     ~ 67 1
32 LHA 115-N 88 HII 01 24 08.1 -73 09 04           ~ 68 1
33 LHA 115-N 88B HII 01 24 09.09 -73 09 06.0           ~ 6 0
34 DEM S 161 HII 01 24 45.4 -73 09 34           ~ 16 0
35 M 33 GiG 01 33 50.904 +30 39 35.79 6.17 6.27 5.72     ~ 5031 1
36 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5398 1
37 NGC 1760 HII 04 56 20.8 -66 32 13           ~ 29 0
38 NGC 1761 As* 04 56 39 -66 29.0     9.94     ~ 96 0
39 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 227 0
40 NGC 1763 As* 04 56 51.5 -66 24 25     9.40     ~ 153 3
41 IRAS 04571-6627 mul 04 57 15.5 -66 23 14           ~ 52 1
42 IC 2116 Em* 04 57 16.253 -66 23 20.94   13.11 12.45 14.00   O3-O6V 74 1
43 NGC 1769 As* 04 57 44.5 -66 27 42           ~ 66 2
44 LHA 120-N 11D EmO 04 57.8 -66 28           ~ 16 0
45 NGC 1773 HII 04 58 12.0 -66 21 36           ~ 50 1
46 LHA 120-N 44 EmO 05 22 06.9 -67 56 46           ~ 161 1
47 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14374 1
48 RMC 136 Cl* 05 38 42.396 -69 06 03.36   9.63 9.50     ~ 1679 2
49 LHA 120-N 159W MoC 05 39 32.510 -69 46 02.74           ~ 67 0
50 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 242 2
51 LHA 120-N 160 EmO 05 39 47.9 -69 37 08           ~ 108 1
52 2MASS J05400074-6947129 Y*O 05 40 00.741 -69 47 12.91 14.808 15.690 15.072   14.336 ~ 32 0
53 LHA 120-N 159S MoC 05 40 03.750 -69 51 01.62           ~ 42 0
54 LHA 120-N 159E MoC 05 40 10.980 -69 44 35.84           ~ 39 0
55 NGC 2024 Cl* 05 41 43 -01 50.5           ~ 1058 1
56 M 51 GiP 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 3695 4

    Equat.    Gal    SGal    Ecl

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2019.12.06-15:06:39

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