Stellar Populations and the Star Formation Histories of LSB Galaxies—Part I: Optical and H<b>α</b> Imaging

<table>Normalized histograms of <svg height="11.375" id="M308" style="vertical-align:-0.1638pt" version="1.1" viewbox="0 0 40.762501 11.375" width="40.762501" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
<g transform="matrix(.017,-0,0,-.017,.062,11.112)"><path d="M594 511q0 -122 -171 -157l1 -2q158 -33 158 -159q0 -52 -34.5 -95t-90.5 -65q-76 -33 -217 -33h-223l8 28q63 5 79.5 19t26.5 72l83 426q9 48 -2.5 60t-77.5 17l6 28h259q195 0 195 -139zM499 509q0 59 -37 83t-91 24q-36 0 -51 -9q-17 -9 -22 -44l-35 -195h62
q82 0 128 37t46 104zM481 199q0 71 -48 102.5t-121 31.5h-56l-37 -201q-11 -58 7.5 -77t80.5 -19q76 0 125 44.5t49 118.5z" id="x1D435"></path></g><g transform="matrix(.017,-0,0,-.017,14.324,11.112)"><path d="M535 230h-483v50h483v-50z" id="x2212"></path></g><g transform="matrix(.017,-0,0,-.017,28.076,11.112)"><path d="M730 650l-8 -28q-52 -4 -72 -18t-64 -77q-79 -113 -321 -539h-33l-119 541q-13 59 -29.5 73t-66.5 20l7 28h245l-8 -28l-28 -5q-33 -6 -40.5 -15.5t-0.5 -38.5l102 -450h2q191 320 246 430q21 42 15.5 56t-43.5 19l-31 4l7 28h240z" id="x1D449"></path></g>
</svg> color. This sample is in black, the RC3 late-type galaxies are in green, and Hunter and Elmegreen and van Zee dwarf galaxies are in red. Our sample has a similar mean and range as the dwarf galaxy sample, both are significantly bluer than the RC3 sample.</table>

Advances in Astronomy

fig13

Figure 13

Figure 13: Stellar Populations and the Star Formation Histories of LSB Galaxies—Part I: Optical and H<b>α</b> Imaging 

Advances in Astronomy

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

Figure 13