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Changes: The Past, Present, and Future of the Nearby Dwarf Galaxy NGC 55

  • Authors: T. J. Davidge

2019 The Astronomical Journal 158 90.

  • Provider: AAS Journals

Caption: Figure 6.

Same as Figure 4, but for the right third of the area observed with GMOS in Figure 1. Localized areas of star formation dominate the Hα map, and HB and HC are star-forming regions that are discussed in the text. The surface brightness in this part of NGC 55 at visible/red wavelengths is lower on average than in the areas displayed in Figures 4 and 5. Line measurements that depart markedly from those that are more typical throughout the area observed with GMOS tend to occur where low signal levels affect line strength measurements.

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