Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..418..491t&link_type=abstract
AKARI, a Light to Illuminate the Misty Universe ASP Conference Series, Vol. 418, proceedings of a conference held 16-19 February
Astronomy and Astrophysics
Astronomy
Scientific paper
The aim of this research is to reveal the spatial distribution of the star formation activity toward nearby galaxies by comparing CO molecular emission lines with the large area observation in FIR lines. We report the imaging observations of far-Infrared (FIR) forbidden lines via FIS-FTS and CO molecular lines from low to high excitation levels with ASTE, which are good tracer of star forming regions or photo-dissociation regions, especially spiral galaxies, in order to derive the information of the physical conditions of the ambient interstellar radiation fields. The information tells us not only the difference of current star forming activity between the arm and the interarm of these galaxies but also star forming history and evolution of spiral galaxies with systematic and statistical study. Furthermore the dust properties can be referred by combining far-infrared photometric data and submillimeter observation. This observation program is a proposal which presents a tool for investigation of physical properties of nearby galaxies.
Matsuo Hiroshi
Nakanishi Kouichiro
Takahashi Hiroyuki
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