112 citations · 1.4k across the 60 of their papers we have counts for
6 papers · 1 filter
Molecular Gas Distribution in Barred and Non-Barred Galaxies along the Hubble Sequence
S. Komugi, Y. Sofue, K. Kohno +4
We present results from a survey of 12CO(J=1-0) spectra obtained for the central regions of 68 nearby galaxies at an angular resolution of 16 arcseconds using the Nobeyama Radio Ob…
Environmental Effects on Gaseous Disks of the Virgo Spiral Galaxies
Hiroyuki Nakanishi, Nario Kuno, Yoshiaki Sofue +8
We found high molecular fractions (; ratio of the molecular to total gas surface densities) in three of five Virgo spiral galaxies in spite of their low total gas colu…
ASTE observations of nearby galaxies: A tight correlation between CO(J=3-2) emission and Halpha
Shinya Komugi, Kotaro Kohno, Tomoka Tosaki +4
Star formation rates (SFRs) obtained via extinction corrected H alpha are compared to dense gas as traced by CO(J=3-2) emission at the centers of nearby galaxies, observed with the…
Threshold between Spontaneous and Cloud-Collisional Star Formation
Shinya Komugi, Yoshiaki Sofue, Fumi Egusa
Based on simple physical and geometric assumptions, we have calculated the mean surface molecular density of spiral galaxies at the threshold between star formation induced by clou…
The Schmidt Law at High Molecular Densities
Shinya Komugi, Yoshiaki Sofue, Hiroyuki Nakanishi +2
We have combined Halpha and recent high resolution CO(J=1-0) data to consider the quantitative relation between gas mass and star formation rate, or the so-called Schmidt law in ne…
Offsets between H-alpha and CO arms of a spiral galaxy NGC 4254: A New Method for Determining the Pattern Speed of Spiral Galaxies
Fumi Egusa, Yoshiaki Sofue, Hiroyuki Nakanishi
We examined offsets between HII regions and molecular clouds belonging to spiral arms of a late type spiral galaxy NGC 4254 (M99). We used a high resolution CO(1-0) image obtained…