Central Stars of Planetary Nebulae in the Large Magellanic Cloud: A Far-UV Spectroscopic Analysis
arXiv:astro-ph/0404367 · doi:10.1086/422133
Abstract
We observed seven central stars of planetary nebulae (CSPN) in the Large Magellanic Cloud (LMC) with the Far Ultraviolet Spectroscopic Explorer (FUSE), and performed a model-based analysis of these spectra in conjunction with Hubble Space Telescope (HST) 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 Msun/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 iron-deficient. Most objects have very hot (T ~> 2000 K) molecular hydrogen in their nebulae, which may indicate a shocked environment. One of these (SMP LMC 62) also displays OVI 1032-38 nebular emission lines, rarely observed in PN.
arXiv comment53 pages, 15 figures (11 color). Accepted for publication in ApJ
References in corpus (15)
- Mass-loss predictions for O and B stars as a function of metallicity
- Overview of the Far Ultraviolet Spectroscopic Explorer Mission
- On-Orbit Performance of the Far Ultraviolet Spectroscopic Explorer (FUSE) Satellite
- Chemical yields from low- and intermediate-mass stars: model predictions and basic observational constraints
- s-Process Nucleosynthesis in AGB Stars: A Test for Stellar Evolution
- Stellar and Wind Properties of LMC WC4 stars - A metallicity dependence for Wolf-Rayet mass-loss rates
- An Atlas of FUSE Sight Lines Toward the Magellanic Clouds
- A New Look at the Evolution of Wolf-Rayet Central Stars of Planetary Nebulae
- Evolution of Planetary Nebulae I. An improved synthetic model
- Far-UV Spectroscopic Analyses of Four Central Stars of Planetary Nebulae
- An explanation for the curious mass loss history of massive stars: from OB stars, through Luminous Blue Variables to Wolf-Rayet stars
- Iron abundance in hot hydrogen-deficient central stars and white dwarfs from FUSE, HST, and IUE spectroscopy
- Comprehensive modelling of the planetary nebula LMC-SMP 61 and its [WC]-type central star
- Fe-deficiency in H-deficient post-AGB stars due to n-capture nucleosynthesis
- A Far-UV Spectroscopic Analysis of the Central Star of the Planetary Nebula Longmore 1
Cited by in corpus (22)
- The formation of fullerenes: clues from new C60, C70, and (possible) planar C24 detections in Magellanic Cloud Planetary Nebulae
- Infrared Study of Fullerene Planetary Nebulae
- Carbon-rich dust past the asymptotic giant branch: aliphatics, aromatics, and fullerenes in the Magellanic Clouds
- Fe emission and ionized excess absorption in the luminous quasar 3C109 with XMM-Newton
- A Spitzer Space Telescope far-infrared spectral atlas of compact sources in the Magellanic Clouds. I. The Large Magellanic Cloud
- Detailed Far-UV to Optical Analysis of Four [WR] Stars
- Hubble Space Telescope Images of Magellanic Cloud Planetary Nebulae
- The Mass Distribution of the Central Stars of Planetary Nebulae in the Large Magellanic Cloud
- Central stars of planetary nebulae in the Galactic bulge
- H2 infrared line emission from the ionized region of planetary nebulae
- Discovery of NeVII in the Winds of Hot Evolved Stars
- NLTE Model of NGC 6543's Central Star and its Relation with the Surrounding Planetary Nebula
- UV spectral analysis of very hot H-deficient [WCE]-type central stars of planetary nebulae: NGC 2867, NGC 5189, NGC 6905, Pb 6, and Sand 3
- Central Stars of Planetary Nebulae in the Magellanic Clouds: A Detailed Spectroscopic Analysis
- Molecular and Atomic Excitation Stratification in the Outflow of the Planetary Nebula M27
- A New Grid of Synthetic Spectra for the Analysis of [WC]-type Central Stars of Planetary Nebulae
- Planetary Nebulae with Ultra-Violet Imaging Telescope (UVIT): Far Ultra-violet halo around the Bow Tie nebula (NGC 40)
- Iron depletion in the hot bubbles in planetary nebulae
- Hot bubbles of planetary nebulae with hydrogen-deficient winds. III. Formation and evolution in comparison with hydrogen-rich bubbles
- The Effect of the Slit Configuration on the H 1-0~S(1) to Br Line Ratio of Spatially Resolved Planetary Nebulae
- Catalogue of central stars of extragalactic planetary nebulae
- A Survey for C II Emission-Line Stars in the Large Magellanic Cloud. II. Final Results and the Origin of C II Emission in [WC] Spectra