The distribution of ionized, molecular, and atomic hydrogen in the disk and especially along the spiral arms of the Whirlpool galaxy, M51, is investigated by...
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PublicationStar formation efficiency patterns in the spiral arms of M51
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PublicationStar formation in Seyfert galaxies
An analysis of the IRAS data for a sample of classical (optically selected) Seyfert galaxies is presented. The IRAS fluxes at 25 micron, 60 micron, and 100...
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PublicationStar formation in the spiral arms of NGC 4321. I - CO observations
Several positions in the southern spiral arm and the interarm disk of NGC 4321 have been observed in CO (J = 1 to 0) using the NRO 45 m telescope at Nobeyama...
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PublicationStar formation rates, efficiencies and initial mass functions in spiral galaxies
Using broad band photometry, a new method is derived to evaluate relative (arm with respect to the interarm disk) star formation rates and relative star...
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PublicationStatistics and properties of H II regions in NGC 6814
We present a new H-alpha image of high quality of the grand-design galaxy NGC 6814, and describe statistical properties of the H II region population. We have...
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PublicationStellar and Gas Kinematics in the Core and Bar Regions of M100
Two-dimensional maps of the stellar and gas kinematics of the bar and starbursting circumnuclear region in the barred spiral galaxy M100 are presented. In this...
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PublicationStellar Disk Truncations: HI Density and Dynamics
Using HI Nearby Galaxy Survey (THINGS) 21-cm observations of a sample of nearby (nearly face-on) galaxies we explore whether the stellar disk truncation...
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PublicationStellar populations and population gradients in spiral bulges.
Not Available
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PublicationStochasticity in galactic models
The effect of a spiral-like perturbation in the orbits of an axisymmetric galactic potential is studied using surfaces of section. It is found that the...