Emission and Absorption in the M87 LINER

@article{Sabra2002EmissionAA,
  title={Emission and Absorption in the M87 LINER},
  author={Bassem Mohamad Sabra and Joseph C. Shields and Luis C. Ho and Aaron J. Barth and Alexei V. Filippenko},
  journal={The Astrophysical Journal},
  year={2002},
  volume={584},
  pages={164 - 175}
}
The nucleus of M87 displays a LINER spectrum at optical wavelengths, with a nuclear disk of nebulosity that is resolved by the Hubble Space Telescope (HST). We present new results from optical and ultraviolet spectra of the central ~40 pc as measured by HST. In contrast with previous results for the extended disk, the emission-line spectrum of the central region is best reproduced by a multicomponent photoionization scenario, rather than shock heating. The nebular properties as well as… 

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