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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 15.

The average cylindrical anisotropies β z (left) and γ (right) vs. the intrinsic, average stellar ellipticity ﹩{\epsilon }_{\mathrm{intr}}﹩. The anisotropies were averaged within the sphere of radius r ≤ 0.8 kpc (∼10″) because values outside the FOV are poorly constrained by the data. Squares: the massive COMA ETGs of J. Thomas et al. (2009a). Stars: the ETGs from M. Cappellari et al. (2007). The dashed diagonal line indicates the empirical relation ﹩{\beta }_{z}=0.7\cdot {\epsilon }_{\mathrm{intr}}﹩ from M. Cappellari et al. (2007), where flatter galaxies have higher anisotropy β z .

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