325 citations · 5.6k across the 124 of their papers we have counts for
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The planetary nebula population in the halo of M87
A. Longobardi, M. Arnaboldi, O. Gerhard +3
We investigate the diffuse light in the outer regions of the nearby elliptical galaxy M87 in the Virgo cluster, using planetary nebulas (PNs) as tracers. The surveyed areas (0.43 s…
The Planetary Nebula Spectrograph survey of S0 galaxy kinematics. Data and Overview
A. Cortesi, M. Arnaboldi, L. Coccato +11
The origins of S0 galaxies remain obscure, with various mechanisms proposed for their formation, likely depending on environment. These mechanisms would imprint different signature…
Elliptical galaxies with rapidly decreasing velocity dispersion profiles: NMAGIC models and dark halo parameter estimates for NGC 4494
Lucia Morganti, Ortwin Gerhard, Lodovico Coccato +2
NGC 4494 is one of several intermediate-luminosity elliptical galaxies inferred to have an unusually diffuse dark matter halo. We use the chi^2-made-to-measure particle code NMAGIC…
The Planetary Nebulae Luminosity Function and distances to Virgo, Hydra I and Coma clusters
Magda Arnaboldi, Alessia Longobardi, Ortwin Gerhard +1
The luminosity function of planetary nebulae populations in galaxies within 10-15 Mpc distance has a cut-off at bright magnitudes and a functional form that is observed to be invar…
Signatures of accretion events in the halos of early-type galaxies from comparing PNe and GCs kinematics
L. Coccato, M. Arnaboldi, O. Gerhard
We have compared the halo kinematics traced by globular clusters (GCs) and planetary nebulae (PNe) for two elliptical galaxies in the Fornax and Virgo clusters NGC 1399 and NGC 464…
A tale of two tails and an off-centered envelope: diffuse light around the cD galaxy NGC 3311 in the Hydra I cluster
Magda Arnaboldi, Giulia Ventimiglia, Enrica Iodice +2
The formation of intracluster light and of the extended halos around brightest cluster galaxies is closely related to morphological transformation, tidal stripping, and disruption…