A 6D kinematic census identifies 18 anomalous Cepheids with extreme orbits, including one possibly scattered by globular cluster E3, and finds consistency between dynamical and stellar ages.
Monthly Notices of the Royal Astronomical Society , volume =
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Bar-induced migration can move ω Cen from the GSE phase-space region, but requires Ω_b ≲ 26 km s^{-1} kpc^{-1}, challenging consensus on the bar speed.
Axisymmetric self-consistent models fitted to NSD kinematic data yield a mass of 1.05 x 10^9 solar masses, radial scale length ~89 pc, vertical scale ~28 pc, and declining velocity dispersion.
citing papers explorer
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Rogue Ones: Orbital census of Galactic Cepheids and their Anomalies
A 6D kinematic census identifies 18 anomalous Cepheids with extreme orbits, including one possibly scattered by globular cluster E3, and finds consistency between dynamical and stellar ages.
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Bar-induced migration of $\omega$ Centauri away from Gaia Sausage-Enceladus
Bar-induced migration can move ω Cen from the GSE phase-space region, but requires Ω_b ≲ 26 km s^{-1} kpc^{-1}, challenging consensus on the bar speed.
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Self-consistent modelling of the Milky Way's Nuclear Stellar Disc
Axisymmetric self-consistent models fitted to NSD kinematic data yield a mass of 1.05 x 10^9 solar masses, radial scale length ~89 pc, vertical scale ~28 pc, and declining velocity dispersion.