2014A&A...572A..56P


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST03:09:13

2014A&A...572A..56P - Astronomy and Astrophysics, volume 572A, 56-56 (2014/12-1)

ASTE observations in the 345 GHz window towards the HII region N113 of the Large Magellanic Cloud.

PARON S., ORTEGA M.E., CUNNINGHAM M., JONES P.A., RUBIO M., FARINA C. and KOMUGI S.

Abstract (from CDS):

The HII region N113 is located in the central part of the Large Magellanic Cloud (LMC) with an associated molecular cloud that is very rich in molecular species. Most of the previously observed molecular lines cover the frequency range 85-270GHz. Thus, a survey and study of lines at the 345GHz window is required for a more complete understanding of the chemistry and excitation conditions of this region. We mapped a region of 2.5'x2.5' centred at N113 using the Atacama Submillimeter Telescope Experiment in the 13CO J=3-2 line with an angular and spectral resolution of 22'' and 0.11km/s. In addition, we observed 16 molecular lines as single pointings towards its centre. From the 13CO J=3-2 map we estimate the local thermodynamic equilibrium (LTE) and virial masses in about 1x104 and 4.5x104M for the molecular cloud associated with N113. From the dust continuum emission at 500µm we additionally obtain a mass of gas of 7x103M. Towards the cloud centre we detected emission from 12CO, 13CO, C18O (3-2), HCN, HNC, HCO+, C2H (4-3), and CS (7-6); these are the first reported detections of the HCN, HNC, and C2H (4-3) lines from this region. We confirm the detection of CS (7-6), which was previously tentatively detected. From analysing the HCN, HNC, and C2H lines we suggest that they might be emitted from a photodissociation region (PDR). Moreover, we suggest that the chemistry involving the C2H lines in N113 is probably similar to that in Galactic PDRs. We analysed the HCN J=4-3, J=3-2, and J=1-0 lines with the code RADEX and we conclude that we observe very high density gas, between some 105 and 107cm–3.

Abstract Copyright:

Journal keyword(s): galaxies: ISM - Magellanic Clouds - HII regions - ISM: individual objects: N113 - ISM: molecules

Simbad objects: 17

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Number of rows : 17

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 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5669 1
2 [JCC87] IRAS 2A Y*O 03 28 55.55 +31 14 36.7           ~ 390 3
3 NGC 1333 OpC 03 29 11 +31 18.6           ~ 1219 1
4 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 234 0
5 BI 105 * 05 12 56.9456167458 -69 22 55.853197607   14.947 14.909     B0.5V 5 1
6 BI 104 * 05 13 11.5296264733 -69 22 34.928626556 12.75 13.815 14.030     O7:V 5 0
7 NGC 1874 Cl* 05 13 13.22 -69 22 30.3   12.47 12.81     ~ 25 0
8 2MASS J05131777-6922250 Y*O 05 13 17.773 -69 22 25.08           ~ 11 0
9 NGC 1876 Cl* 05 13 19.04 -69 21 44.5   11.54 11.71     ~ 14 1
10 [GC2009] J051321.43-692241.5 Y*O 05 13 21.43 -69 22 41.5           ~ 7 0
11 LHA 120-N 113 HII 05 13 21.7 -69 21 33           ~ 98 1
12 NGC 1877 Cl* 05 13 21.75 -69 22 37.9           ~ 13 1
13 [SLW2012] J051325.09-692245.1 Y*O 05 13 25.09 -69 22 45.1           ~ 3 0
14 HD 269217 s*b 05 13 38.9188358563 -69 21 08.085451831 11.325 12.084 11.754 12.16 11.54 B5/6Ia[e] 68 0
15 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14832 1
16 LHA 120-N 159W MoC 05 39 32.510 -69 46 02.74           ~ 73 0
17 M 82 IG 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 5336 6

    Equat.    Gal    SGal    Ecl

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2020.07.10-03:09:13

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