2004ApJ...611..294H


Query : 2004ApJ...611..294H

2004ApJ...611..294H - Astrophys. J., 611, 294-314 (2004/August-2)

Central stars of planetary nebulae in the Large Magellanic Cloud: a far-ultraviolet spectroscopic analysis.

HERALD J.E. and BIANCHI L.

Abstract (from CDS):

We observed seven central stars of planetary nebulae (PNe) in the Large Magellanic Cloud (LMC) with the Far Ultraviolet Spectroscopic Explorer and performed a model-based analysis of these spectra in conjunction with Hubble Space Telescope spectra in the UV and optical range to determine the stellar and nebular parameters. Most of the objects show wind features, and they have effective temperatures ranging from 38 to 60 kK with mass-loss rates of ≃5x10–8 M☉/yr. Five of the objects have typical LMC abundances. One object (SMP LMC 61) is a [WC4] star, and we fit its spectra with He/C/O-rich abundances typical of the [WC] class and find its atmosphere to be Fe-deficient. Most objects have very hot (T≳2000 K) molecular hydrogen (H2) in their nebulae, which may indicate a shocked environment. One of these (SMP LMC 62) also displays O VI λλ1032, 1038 nebular emission lines, rarely observed in PNe.

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Journal keyword(s): Galaxies: Magellanic Clouds - ISM: Planetary Nebulae: General - Stars: AGB and Post-AGB - Stars: Atmospheres

Simbad objects: 13

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Number of rows : 13
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 PN Lo 1 PN 02 56 58.4329051992 -44 10 17.842956240   14.61       ~ 55 0
2 SMP LMC 2 PN 04 40 56.6962705344 -67 48 02.172617892 15.972 17.130 17.016   17.341 ~ 38 0
3 2MASS J05060944-6745277 pA? 05 06 09.447 -67 45 27.80 15.874 16.622 15.539 15.870 17.326 ~ 37 0
4 SMP LMC 35 PN 05 10 49.9300809024 -65 29 30.877612296 16.33 16.579 15.67 16.04 17.85 ~ 38 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 IRAS F05258-7343 pA? 05 24 35.9730395808 -73 40 40.240094808   16.48     16.64 WC 65 0
7 LHA 120-N 201 PN 05 24 55.1017509912 -71 32 56.326765848 14.822 15.319 14.240 14.440 15.698 ~ 66 0
8 IC 418 PN 05 27 28.2059533560 -12 41 50.282287764   9.405 9.010 10.118   O7fp 1059 2
9 LHA 120-N 53 PN 05 29 15.6693091824 -67 32 47.610463128 15.945 17.093 18.76 16.01 17.264 ~ 45 0
10 SV* HV 5967 PN 05 36 20.7215081304 -67 18 07.658262756 15.56 16.225 14.948   16.558 [WN4.5:] 147 0
11 LHA 120-N 69 PN 05 40 30.8107868952 -66 17 37.261370940 15.834 16.533 15.711   16.382 [WC8] 55 0
12 NGC 2371 PN 07 25 34.6883929008 +29 29 26.430252072   14.48 13.5     Oe 384 0
13 NGC 6826 PN 19 44 48.1500225888 +50 31 30.249034932   9.779 9.359 10.775   O3f(H) 736 0

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