Extraplanar Emission-Line Gas in Edge-On Spiral Galaxies. I. Deep Emission-Line Imaging

@article{Miller2003ExtraplanarEG,
  title={Extraplanar Emission-Line Gas in Edge-On Spiral Galaxies. I. Deep Emission-Line Imaging},
  author={Scott T. Miller and Sylvain Veilleux},
  journal={The Astrophysical Journal Supplement Series},
  year={2003},
  volume={148},
  pages={383 - 417}
}
The extraplanar diffuse ionized gas (eDIG) in 17 nearby, edge-on disk galaxies is studied using deep Taurus Tunable Filter Hα and [N II] λ6583 images and conventional interference filter Hα+[N II] λλ6548, 6583 images that reach flux levels generally below ∼1 × 10-17 ergs s-1 cm-2 arcsec-2. [N II] λ6583/Hα excitation maps are available for 10 of these objects. All but one galaxy in the sample exhibit eDIG. The contribution of the eDIG to the total Hα luminosity is relatively constant, on the… 

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