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Hα Velocity Mapping of Ultraluminous Infrared Galaxies

  • Authors: J. Christopher Mihos and Gregory D. Bothun

Mihos & Bothun 1998 The Astrophysical Journal 500 619.

  • Provider: AAS Journals

Caption: Fig. 4.

Reduced Fabry‐Pérot map of IRAS 19254−7245. North is to the left; east is to the bottom. Top left, continuum map; top right, Hα emission map; and bottom left, Hα velocity map. Light shading is blueshifted relative to systemic; dark shading is redshifted. Bottom right, Hα velocity dispersion map. Dark regions represent high velocity dispersion. The central "hole" in the maps corresponds to the Seyfert 2 nuclear region, which could not be fitted by the line fitting algorithm.

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