Supersonic Line Broadening and the Gas Dynamical Evolution of Giant HII Regions
We have analyzed high spatial and spectral resolution Hα emission-line TAURUS data on two nearby giant H II regions, NGC 604 and NGC 588. Previous work shows that while NGC 604 is a relatively young system whose emission line kinematics is due to a combination of gravity and stellar wind-blown shells, NGC 588 seems more evolved, with its ionized
Munoz-Tunon, C. et al.
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