524 citations · 6.3k across the 132 of their papers we have counts for
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The Capture of Particles by Chaotic Resonances During Orbital Migration
A. C. Quillen
Because a chaotic zone can reduce the long timescale capture probabilities and cause catastrophic events such as close encounters with a planet or star during temporary capture, th…
The non-stellar infrared continuum of Seyfert galaxies
A. Alonso-Herrero, A. C. Quillen, C. Simpson +2
JHKL'M (1-5 micron) imaging of a sample of Seyfert (Sy) 2 galaxies is presented. We confirm that the 1-2.2 micron nuclear continuum of some Sy 2s is dominated by stellar emission,…
A comparison between Pa alpha and H alpha emission: The relation between HII region mean reddening, local gas density and metallicity
A. C. Quillen, Mihoko Yukita
We measure reddenings to HII regions in NGC 2903, NGC 1512, M51, NGC 4449 and NGC 6946 from Hubble Space Telescope Pa alpha and H alpha images. Extinctions range from A_V ~ 5 - 0 d…
The saturation of disk heating in the solar neighborhood and evidence for a merger 9 Gyrs ago
Alice C. Quillen, Donald R. Garnett
We re-examine the age-velocity dispersion relation in the solar neighborhood using improved stellar age estimates that are based on Hipparcos parallaxes and recent stellar evolutio…