The planetary nebula Abell 48 and its [WN] nucleus

@article{Frew2014ThePN,
  title={The planetary nebula Abell 48 and its [WN] nucleus},
  author={David J. Frew and I S Boji{\vc}i{\'c} and Quentin A. Parker and Milorad Stupar and Stefanie Wachter and Kyle David DePew and Ashkbiz Danehkar and Michael Fitzgerald and Dimitri Douchin},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2014},
  volume={440},
  pages={1345-1364}
}
We have conducted a detailed multi-wavelength study of the peculiar nebula Abell 48 and its central star. We classify the nucleus as a helium-rich, hydr ogen-deficient star of type [WN4‐ 5]. The evidence for either a massive WN or a low-mass [WN] interpretation is critically examined, and we firmly conclude that Abell 48 is a planetary n ebula (PN) around an evolved low-mass star, rather than a Population I ejecta nebula. Importantly, the surrounding nebula has a morphology typical of PNe, and… 

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