Investigating the Neutral Hydrogen Disk of NGC 4395

Details Investigating the Neutral Hydrogen Disk of NGC 4395 Investigating the Neutral Hydrogen Disk of NGC 4395

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20718806s&link_type=abstract

American Astronomical Society Meeting 207, #188.06; Bulletin of the American Astronomical Society, Vol. 37, p.1482

Astronomy and Astrophysics

Astronomy

Scientific paper

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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