[58.10] The Leading H$\alpha$ Bar in NGC 3359

AAS 199th meeting, Washington, DC, January 2002
Session 58. Interstellar Medium - II
Display, Tuesday, January 8, 2002, 9:20am-6:30pm, Exhibit Hall

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[58.10] The Leading H\alpha Bar in NGC 3359

C. R. Byrnes, L.V. Jones (Denison University)

We present preliminary results from a study of the H\alpha bar in NGC 3359, a nearby, nearly face-on barred spiral galaxy. We create an extinction map using H\alphaand Brackett\gamma images. Using this extinction map, we can correct our other images for extinction and better analyze the metallicity gradient (using [OIII], [OII] and [NII] images). Also, we perform an analysis to describe the physical nature of the gas in the bar; which should help resolve the question of why there is a leading bar.

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