Physics
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aipc..783..116v&link_type=abstract
THE EVOLUTION OF STARBURSTS: The 331st Wilhelm and Else Heraeus Seminar. AIP Conference Proceedings, Volume 783, pp. 116-122 (2
Physics
1
Galaxies, Interstellar Matter, Star Formation, Spectroscopy, Dwarf Galaxies, Jets, Outflows And Bipolar Flows, Origin, Formation, Evolution, Age, And Star Formation
Scientific paper
High-resolution long-slit echelle spectroscopy of the two irregular dwarf galaxies NGC 2366 and NGC 4861 was performed with the 4 m telescope of the Kitt Peak National Observatory to examine the structure and the kinematics of the ionized gas. Additionally, we use Hα images from the 3.5 m telescope of the Calar Alto Observatory (NGC 2366) and from the 3.6 m Canada France Hawaii Telescope (NGC 4861). We are particularly looking for expanding shells and outflows in Hα. In both galaxies giant filaments are detected at distances of several kpcs from the center of current star formation. They expand with velocities up to 110 km/s. A special feature is the outflow to the north-west of the Giant HII Region NGC 2363. Sometimes it even seems that these outflows emanate from regions with only weak star formation. That means that they probably descend from an older star formation event.
Bomans Dominik J.
van Eymeren Janine
Weis Kerstin
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