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The VIRUS-dE Survey. I. Stars in Dwarf Elliptical Galaxies—3D Dynamics and Radially Resolved Stellar Initial Mass Functions

  • Authors: Mathias Lipka, Jens Thomas, Roberto Saglia, Ralf Bender, Maximilian Fabricius, Gary J. Hill, Matthias Kluge, Martin Landriau, Ximena Mazzalay, Eva Noyola, Taniya Parikh, Jan Snigula

Mathias Lipka et al 2024 The Astrophysical Journal 976 .

  • Provider: AAS Journals

Caption: Figure 4.

The radial profiles of the Gauss–Hermite representations (up to h 4) with 1σ errors as derived from the spectroscopic data (gray) and the corresponding fit of the best dynamical orbit model we found for each galaxy (colored). The 1σ errors are quantified by fitting Gauss–Hermites to 100 Monte Carlo realizations on the velocity-binned LOSVDs. The models fit the observed kinematics quite well considering deviations from axisymmetry in the data cannot be emulated by axisymmetric models.

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