Beta Dips in the Gaia Era: Simulation Predictions of the Galactic Velocity Anisotropy Parameter for Stellar Halos

The velocity anisotropy parameter, beta, is a measure of the kinematic state of orbits in the stellar halo which holds promise for constraining the merger history of the Milky Way (MW). We determine global trends for beta as a function of radius from three suites of simulations, including accretion...

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Veröffentlicht in:	arXiv.org 2018-02
Hauptverfasser:	Loebman, Sarah R, Valluri, Monica, Hattori, Kohei, Debattista, Victor P, Bell, Eric F, Stinson, Greg, Christensen, Charlotte R, Brooks, Alyson, Quinn, Thomas R, Governato, Fabio
Format:	Artikel
Sprache:	eng
Schlagworte:	Anisotropy Computer simulation Deposition Galactic halos Metallicity Milky Way Galaxy Parameters Physics - Astrophysics of Galaxies Physics - Cosmology and Nongalactic Astrophysics Physics - Solar and Stellar Astrophysics
Online-Zugang:	Volltext
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