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Optical Spectroscopy of the IRAS 1 Jy Sample of Ultraluminous Infrared Galaxies

  • Authors: Sylvain Veilleux, D.-C. Kim, and D. B. Sanders

Veilleux, Kim, & Sanders 1999 The Astrophysical Journal 522 113.

  • Provider: AAS Journals

Caption: Fig. 14.

Hα equivalent widths as a function of (a) IRAS flux density ratio ﹩f_{12}/ f_{25}﹩, (b) IRAS flux density ratio ﹩f_{25}/ f_{60}﹩, and (c) IRAS flux density ratio ﹩f_{60}/ f_{100}﹩. Symbols are as in Fig. 7. Correlations are apparent among H II galaxies.

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