Dynamical modelling of ATLAS$^{\rm 3D}$ galaxies

Alice Zocchi; Edward J. Lilley; Giulia Santucci; Glenn van de Ven; Prashin Jethwa; Sabine Thater

arxiv: 2305.09344 · v1 · pith:IO7EDQRRnew · submitted 2023-05-16 · 🌌 astro-ph.GA

Dynamical modelling of ATLAS^(rm 3D) galaxies

Sabine Thater , Prashin Jethwa , Edward J. Lilley , Alice Zocchi , Giulia Santucci , Glenn van de Ven This is my paper

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keywords galaxiesdynamicalmodellingmodelstriaxialatlas3dcomplexdifferent

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Triaxial dynamical models of massive galaxies observed in the ATLAS3D project can provide new insights into the complex evolutionary processes that shape galaxies. The ATLAS3D survey is ideal as the sample comprises a good mix of fast and slow rotators with vastly different mass assembly histories. We present a detailed dynamical study with our triaxial modelling code DYNAMITE, which models galaxies as a superposition of their stellar orbits. The models allow us to constrain the intrinsic shape of the stellar component, the distributions of the visible and invisible matter and the orbit distribution in these nearby early-type galaxies and to relate it with different evolutionary scenarios. Triaxial modelling is essential for these galaxies to understand their complex kinematical features.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Dissecting the 3D chemo-dynamical structures of NGC 1381: a galaxy hosting an ancient slow bar with an accreted bulge and thick disc
astro-ph.GA 2026-07 unverdicted novelty 4.0

NGC 1381 is modeled as having a nuclear disc, BP/X-shaped bar, bulge, thin disc, thick disc and halo, with the bar being ancient and slow and the bulge and thick disc largely accreted.