The cooling-down central star of the planetary nebula SwSt 1: a late thermal pulse in a massive post-AGB star?
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2274
Abstract: SwSt 1 (PN G001.5-06.7) is a bright and compact planetary nebula containing a late [WC]-type central star. Previous studies suggested that the nebular and stellar lines are slowly changing with time. We studied new and… read more here.
Keywords: star; central star; planetary nebula; post agb ... See more keywords
The post-common-envelope binary central star of the planetary nebula Ou 5: a doubly-eclipsing post-red-giant-branch system
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab3736
Abstract: We present a detailed study of the stellar and orbital parameters of the post-common envelope binary central star of the planetary nebula Ou 5. Low-resolution spectra obtained during the primary eclipse – to our knowledge the… read more here.
Keywords: common envelope; central star; star; post ... See more keywords
Spectroscopic survey of faint planetary-nebula nuclei. II. The subdwarf O central star of Fr 2-30
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1624
Abstract: Fr 2-30 = PN? G126.8−15.5 is a faint emission nebula, hosting a 14th-mag central star that we identify here for the first time. Deep Hα and [O iii] images reveal a roughly elliptical nebula with dimensions of… read more here.
Keywords: faint; star; central star; spectroscopic survey ... See more keywords
Accretion onto WD 2226−210, the central star of the Helix Nebula
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DOI: 10.1093/mnras/stae2733
Abstract: The central star of the Helix Nebula, WD 2226−210 presents enigmatic hard X-ray emission and mid-IR excess. The latter has been attributed to a dusty disk or a cloud-like structure around WD 2226−210 formed from material of… read more here.
Keywords: star helix; helix nebula; central star; 2226 210 ... See more keywords
Central-star extinctions towards planetary nebulae
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DOI: 10.1093/mnras/staf1552
Abstract: Planetary nebulae trace the hottest and most luminous phase of evolution of solar-type stars. We use these hot, bright stars to investigate extinctions towards a complete sample of 262 confirmed PNe with large angular diameters,… read more here.
Keywords: extinctions towards; central star; star extinctions; planetary nebulae ... See more keywords
Co-spatial UV-optical HST/STIS Spectra of Six Planetary Nebulae: Nebular and Stellar Properties1
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty2517
Abstract: This paper represents the conclusion of a project that had two main goals: (1) to investigate to what extent planetary nebulae (PNe) are chemically homogeneous; and (2) to provide physical constraints on the central star… read more here.
Keywords: spatial optical; planetary nebulae; stis spectra; central star ... See more keywords