119 citations · 141 across the 2 of their papers we have counts for
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Planetary Nebulae in Face-On Spiral Galaxies. I. Planetary Nebula Photometry and Distances
Kimberly A. Herrmann, Robin Ciardullo, John J. Feldmeier +1
As the first step to determine disk mass-to-light ratios for normal spiral galaxies, we present the results of an imaging survey for planetary nebulae (PNe) in six nearby, face-on…
Planetary Nebula Studies of Face-On Spiral Galaxies: Is the Disk Mass-to-Light Ratio Constant?
Kimberly A. Herrmann, Robin Ciardullo
When astronomers study the dark matter halos of spiral galaxies, they normally assume that the disk mass-to-light ratio is *constant*. We describe a method of analyzing the kinemat…
The Planetary Nebula System of M33
Robin Ciardullo, Patrick R. Durrell, Mary Beth Laychak +4
We report the results of a photometric and spectroscopic survey for planetary nebulae (PNe) in the Local Group spiral galaxy M33. We use our sample of 152 PNe to derive an [O III]…