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Kiso Hα Imaging Observations of Nearby Galaxies

Published online by Cambridge University Press:  16 May 2016

T. Hasegawa
Affiliation:
Kiso Observatory, University of Tokyo, 10762–30, Mitake, Kiso, Nagano 397–01, Japan; htakashi@mtk.ioa.s.u-tokyo.ac.jp
S. Sakamoto
Affiliation:
Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Minamimaki, Minamisaku, Nagano 384–13, Japan; seiichi@nro.nao.ac.jp
S. Nishiura
Affiliation:
Department of Astronomy, Tohoku University, Aoba, Sendai, Miyagi 980–77, Japan
Y. Ohyama
Affiliation:
Department of Astronomy, Tohoku University, Aoba, Sendai, Miyagi 980–77, Japan
Y. Sofue
Affiliation:
Kiso Observatory, University of Tokyo, 10762–30, Mitake, Kiso, Nagano 397–01, Japan
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Abstract

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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.

Type
Research Article
Copyright
Copyright © Astronomical Society of Australia 1998

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