2014MNRAS.439.1472M


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.14CET06:49:21

2014MNRAS.439.1472M - Mon. Not. R. Astron. Soc., 439, 1472-1493 (2014/April-1)

Spitzer Space Telescope spectra of post-AGB stars in the Large Magellanic Cloud - polycyclic aromatic hydrocarbons at low metallicities.

MATSUURA M., BERNARD-SALAS J., LLOYD EVANS T., VOLK K.M., HRIVNAK B.J., SLOAN G.C., CHU Y.-H., GRUENDL R., KRAEMER K.E., PEETERS E., SZCZERBA R., WOOD P.R., ZIJLSTRA A.A., HONY S., ITA Y., KAMATH D., LAGADEC E., PARKER Q.A., REID W.A., SHIMONISHI T., VAN WINCKEL H., WOODS P.M., KEMPER F., MEIXNER M., OTSUKA M., SAHAI R., SARGENT B.A., HORA J.L. and McDONALD I.

Abstract (from CDS):

This paper reports variations of polycyclic aromatic hydrocarbons (PAHs) features that were found in Spitzer Space Telescope spectra of carbon-rich post-asymptotic giant branch (post-AGB) stars in the Large Magellanic Cloud (LMC). The paper consists of two parts. The first part describes our Spitzer spectral observing programme of 24 stars including post-AGB candidates. The latter half of this paper presents the analysis of PAH features in 20 carbon-rich post-AGB stars in the LMC, assembled from the Spitzer archive as well as from our own programme. We found that five post-AGB stars showed a broad feature with a peak at 7.7µm, that had not been classified before. Further, the 10–13µm PAH spectra were classified into four classes, one of which has three broad peaks at 11.3, 12.3 and 13.3µm rather than two distinct sharp peaks at 11.3 and 12.7µm, as commonly found in Hii regions. Our studies suggest that PAHs are gradually processed while the central stars evolve from post-AGB phase to planetary nebulae, changing their composition before PAHs are incorporated into the interstellar medium. Although some metallicity dependence of PAH spectra exists, the evolutionary state of an object is more significant than its metallicity in determining the spectral characteristics of PAHs for LMC and Galactic post-AGB stars.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): stars: AGB and post-AGB - circumstellar matter - galaxies: individual: Large Magellanic Cloud - infrared: stars

Simbad objects: 51

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Number of rows : 51

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 MSX SMC 029 pA* 00 36 46.3066254620 -73 31 35.484753395           C-rich 19 0
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9141 1
3 GSC 04501-00166 pA* 01 04 45.5102402311 +79 26 46.354274761   11.04 10.87 10.85   B1.7Ibeq 68 0
4 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5410 1
5 IRAS 04296+3429 pA* 04 32 56.9768181234 +34 36 12.505781495   16.20 14.21   11.64 G0Ia 134 0
6 SMP LMC 11 PN 04 51 37.824 -67 05 16.63 19.156 20.303 20.142   19.582 ~ 45 0
7 IRAS 04518-6852 C* 04 51 40.563 -68 47 34.81           C-rich 13 1
8 IRAS 04540-6721 EB* 04 54 03.63840 -67 16 18.4692 15.41 16.871 16.889 15.24 15.349 ~ 11 0
9 LHA 120-S 10 Em* 04 59 07.3885427012 -65 43 13.328222706   13.12 13.28 13.60   O9ep/B1-2ep 9 0
10 IRAS 05026-6809 C* 05 02 21.990 -68 05 24.32           C-rich 7 0
11 IRAS 05053-6901 C* 05 05 04.812 -68 57 48.33           C-rich 8 0
12 V* W Ori C* 05 05 23.7201883024 +01 10 39.459119918 16.36 9.52 6.10 3.83 2.35 C-N5 271 0
13 IRAS 05063-6908 AB? 05 06 03.670 -69 03 58.76           ~ 10 0
14 IRAS 05073-6752 pA* 05 07 13.9201382784 -67 48 46.726627739           ~ 12 0
15 MSX LMC 130 pA? 05 07 18.3548462811 -69 07 42.791996292 14.050 13.744 13.566 13.41 13.457 A7II/A9I 6 0
16 MSX LMC 92 Mi* 05 08 25.589 -68 53 59.90     22.302   17.988 C-rich 10 0
17 IRAS 05092-7121 LP* 05 08 35.9125717991 -71 17 30.730489435   20.178 18.379 16.498 16.493 ~ 12 0
18 IRAS 05110-6616 pA? 05 11 10.6388606862 -66 12 53.626159416 20.528 18.416 16.629 15.70 14.536 F3II(e) 16 0
19 IRAS 05127-6911 pA* 05 12 28.2173503377 -69 07 55.759681244 15.598 16.586 16.154 16.090 16.129 ~ 12 0
20 IRAS 05189-7008 LP* 05 18 25.8653888513 -70 05 32.490147539     16.806 16.230 15.129 ~ 6 0
21 IRAS 05185-6806 Y*O 05 18 28.1458583573 -68 04 03.975469620           ~ 11 0
22 IRAS F05192-7008 LP* 05 18 45.2551669349 -70 05 34.595050267 20.134 19.207 17.481 15.890 15.646 ~ 16 0
23 IRAS S05211-6926 LP* 05 20 43.858 -69 23 40.31 17.618 16.515 15.075 13.92 13.887 F5Ib(e) 16 0
24 OGLE LMC-SC21 243519 RC* 05 20 48.210 -70 12 12.54     17.912   14.943 ~ 9 0
25 2MASS J05212396-6835337 pA? 05 21 23.961 -68 35 33.79 15.552 15.957 14.844 15.87 16.860 ~ 43 0
26 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14392 1
27 IRAS Z05259-7052 LP* 05 25 20.7708788848 -70 50 07.475944037 17.562 16.570 15.335 14.480 16.252 A1Ia-F2-F5I 11 0
28 MSX LMC 474 Mi* 05 25 51.85 -68 46 34.3   23.070 22.297   19.280 C-rich 6 0
29 MSX LMC 736 C* 05 33 06.8124551249 -70 30 34.991292054   17.875 18.744   14.730 C-rich 9 0
30 SV* HV 2669 AB* 05 33 36.3677787138 -69 23 12.616683613 15.643 14.752 13.59 13.22 12.371 G8pe 14 0
31 LHA 120-N 151 PN 05 33 46.9773457074 -68 36 44.250421238 15.753 16.181 14.927 15.41 16.631 ~ 32 0
32 IRAS 05346-6949 * 05 34 14.344 -69 47 20.39           ~ 19 0
33 IRAS F05361-7121 AB? 05 35 25.8486220695 -71 19 56.625962539           ~ 10 0
34 IRAS 05370-7019 pA* 05 36 32.525 -70 17 38.45         18.11 ~ 10 0
35 IRAS 05341+0852 pA* 05 36 55.0500719686 +08 54 08.646055747   15.36 13.55 12.46 11.43 F6I 104 0
36 OGLE LMC-ECL-21644 EB* 05 39 11.5873275198 -69 31 25.825969425   14.85 15.0 15.145 15.111 ~ 6 0
37 2MASS J05394112-6929166 Y*O 05 39 41.125 -69 29 16.68           ~ 7 0
38 AL 391 Em* 05 40 55.8446096752 -69 16 14.574262840   14.544 14.36 14.62   B0.5III[e] 8 0
39 MSX LMC 1795 Mi* 05 42 21.90 -69 02 59.1         15.793 ~ 8 0
40 IRAS 05509-6956 C* 05 50 26.08 -69 56 03.1           C-rich 12 0
41 IRAS 05537-7015 pA* 05 53 12.0025376558 -70 15 22.367820315           ~ 10 0
42 IRAS 05588-6944 AB* 05 58 25.9829797087 -69 44 25.826081013           ~ 14 0
43 HD 56126 pA* 07 16 10.2589670319 +09 59 47.953674864   9.20 8.32     F0/5Ia 301 0
44 LS 1351 WV* 09 49 01.0500055496 -46 31 32.310024015 12.84 12.95 12.58 12.60   B1Iae 15 0
45 IRAS 13416-6243 pA* 13 45 07.2570740611 -62 58 16.832906949           G1I 40 0
46 SN 2008S ? 20 34 45.33 +60 05 58.4   19.89 18.79 17.93   SN.IIn? 205 2
47 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2190 2
48 NGC 7027 PN 21 07 01.8 +42 14 10   9.1 10.9     ~ 2304 1
49 [D75b] Em* 21-021 PN 21 29 58.4712776885 +51 04 00.323547316   15.66 14.20 13.89   O7(f)/[WC11] 224 0
50 HD 235858 pA* 22 29 10.3755939027 +54 51 06.341145584   11.40 9.52 8.47 7.34 G5Ia 234 0
51 IRAS 22574+6609 pA* 22 59 18.36 +66 25 48.2       19.2   A1-6I 55 0

    Equat.    Gal    SGal    Ecl

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2019.12.14-06:49:21

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