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radio lines: galaxies.

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Kiso Hα Imaging Observations of Nearby Galaxies
T. Hasegawa, S. Sakamoto, S. Nishiura, Y. Ohyama, Y. Sofue
Journal:

Publications of the Astronomical Society of Australia / Volume 15 / Issue 1 / 1998

Published online by Cambridge University Press:

16 May 2016, pp. 149-151
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We report Hα imaging observations of nearby galaxies with the Kiso Schmidt telescope. For spiral galaxy NGC 628, we found no clear correlation between Hα and CO intensities, and we discuss the star formation efficiency of this galaxy. No nuclear Hα emission in this galaxy was detected. This is consistent with spectroscopic observations which indicate that the nuclear region is in the post starburst phase. We also describe the Hα image of Hickson's compact group 92 in which diffuse emission is detected extending within the group system.