Stellar Populations and the Star Formation Histories of LSB Galaxies—Part I: Optical and Hα Imaging

Figure 1

An example visual summary chart for galaxy D723-9. The top left panel is a high-contrast 𝑉 image (to emphasize LSB features), axes are in pixel units, north at top, east to left. The top right panel is a low-contrast 𝑉 image with foreground stars removed. The middle left panel is the 𝐵−𝑉 color map (blue is 𝐵−𝑉=0, red is 𝐵−𝑉=1). The middle right panel is the H𝛼 emission. The lower left panel is the 𝐵−𝑉 color profile (open symbols are differential color, solid line is integrated color). Redshift, distance, central surface brightness, and scalelength (𝛼) are also listed. All the galaxy charts can be found at http://abyss.uoregon.edu/~js/lsb.

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