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astro-ph1999
Distribution of Dark Matter in Bulge, Disk and Halo inferred from High-accuracy Rotation Curves
Yoshiaki Sofue
High-accuracy rotation curves of spiral galaxies show a steep rise in the central few hundred pc region, indicating high concentration of mass toward the center. Using the rotation…
astro-ph1999
Compatibility of the CO and HI Linewidths Considering the Gas Distribution and Rotation Curves
Yoshinori Tutui, Yoshiaki Sofue
We have examined the trend between CO and HI linewidths by compiling the linewidths of 219 nearby galaxies. The trend is that the CO linewidths of fast rotating galaxies tend to be…
astro-ph1999
Accurate Rotation Curves and Distribution of Dark Matter in Galaxies
Yoshiaki Sofue
We present high-accuracy rotation curves, which show a steep nuclear rise and high-velocity central rotation, followed by a broad maximum in the disk and flat part. We use the rota…