AAS 207th Meeting, 8-12 January 2006
Session 188 Galaxy Anatomy: from Bars to Halos
Poster, Thursday, 9:20am-4:00pm, January 11, 2006, Exhibit Hall

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[188.06] Investigating the Neutral Hydrogen Disk of NGC 4395

A. M. Stilp, E. M. Wilcots (University of Wisconsin)

We present a detailed analysis of the ISM in the nearby spiral galaxy NGC 4395, using interferometric HI observations complemented by 20cm radio continuum, H-alpha, and X-ray data. The HI distribution is riddled with holes; we show that some may be caused by massive stars. However, not all observed holes in NGC 4395 exhibit such behavior, and may be due simply to a clumpy ISM. We find a striking example where we see strong spatial correlation between diffuse X-ray emission, 20cm radio continuum emission, and an HI hole. We also present the HI rotation curve and velocity field of the galaxy.

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