Galactic wind in NGC 4460: New observations

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• 作者：D. V. Oparin ; A. V. Moiseev
• 关键词：galaxies ; ISM ; galaxies ; starburst ; galaxies ; individual ; NGC 4460
• 刊名：Astrophysical Bulletin
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：70
• 期：4
• 页码：392-399
• 全文大小：824 KB
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• 作者单位：D. V. Oparin (1)
  A. V. Moiseev (1)
  
  1. Special Astrophysical Observatory, Russian Academy of Sciences, Nizhnii Arkhyz, 369167, Russia
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Astronomy, Astrophysics and Cosmology
  Russian Library of Science
  
• 出版者：MAIK Nauka/Interperiodica distributed exclusively by Springer Science+Business Media LLC.
• ISSN：1990-3421

文摘

NGC 4460 is an isolated lenticular galaxy, in which galactic wind has been earlier discovered as a gas outflow associated with circumnuclear regions of star formation. Using the results of observations in the Hα line with the scanning Fabry–Perot interferometer on the SAO RAS 6-m telescope, we studied the kinematics of the ionized gas in this galaxy. The parameters of gas outflow from the plane of the galactic disk were refined within a simple geometric model. We show that it is impossible to characterize the wind by a fixed velocity value. Characteristic outflow velocities are within 30-0 km s?, and they are insufficient to make the swept-out matter ultimately leave the galaxy. Keywords galaxies: ISM galaxies: starburst galaxies: individual: NGC 4460