448 citations · 13.6k across the 269 of their papers we have counts for
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Probing Halos with PNe: Mass and Angular Momentum in Early-Type Galaxies
Aaron J. Romanowsky
We present an observational survey program using planetary nebulae, globular clusters, and X-ray emission to probe the halos of early-type galaxies. We review evidence for scanty d…
Mass-to-light ratio gradients in early-type galaxy haloes
N. R. Napolitano, M. Capaccioli, A. J. Romanowsky +6
Since the near future should see a rapidly expanding set of probes of the halo masses of individual early-type galaxies, we introduce a convenient parameter for characterising the…
Galaxy dynamics with the Planetary Nebula Spectrograph
N. R. Napolitano, A. J. Romanowsky, N. G. Douglas +6
The Planetary Nebula Spectrograph is a dedicated instrument for measuring radial velocity of individual Planetary Nebulae (PNe) in galaxies. This new instrument is providing crucia…