activity
20112026
most citedSignatures of accretion events in the halos of early-type galaxies from comparing PNe and GCs kinematics

63 citations · 133 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.GA2026

The Merger-Driven Origin of the Vast Extended Stellar Disc Around the Andromeda Galaxy

C. Tsakonas, M. Arnaboldi, F. Hammer +4

The closest giant spiral, the Andromeda galaxy (M31), shows compelling evidence for a recent, gas-rich major merger event. Pronounced substructures in its inner halo and a kinemati…

astro-ph.GA2025★ 5 cited

The survey of planetary nebulae in Andromeda (M31) VII. Predictions of a major merger simulation model compared with chemodynamical data of the disc and inner halo substructures

C. Tsakonas, M. Arnaboldi, S. Bhattacharya +5

The nearest giant spiral, M31, exhibits a kinematically hot stellar disc, a global star formation episode ~2-4 Gyr ago, and conspicuous substructures in its stellar halo that are s…

astro-ph.GA2024★ 22 cited

The GECKOS Survey: Identifying kinematic sub-structures in edge-on galaxies

A. Fraser-McKelvie, J. van de Sande, D. A. Gadotti +30

The vertical evolution of galactic discs is governed by the sub-structures within them. We examine the diversity of kinematic sub-structure present in the first 12 galaxies observe…

astro-ph.CO2012★ 63 cited

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…

astro-ph.GA2011★ 43 cited

Unravelling the origins of S0 galaxies using maximum likelihood analysis of planetary nebulae kinematics

A. Cortesi, M. R. Merrifield, M. Arnaboldi +12

To investigate the origins of S0 galaxies, we present a new method of analyzing their stellar kinematics from discrete tracers such as planetary nebulae. This method involves binni…