Dynamics of the Milky Way
Tidal Streams and Extended Distribution Functions for the Galactic Disc
Seiten
2015
|
2015
Springer International Publishing (Verlag)
978-3-319-18771-6 (ISBN)
Springer International Publishing (Verlag)
978-3-319-18771-6 (ISBN)
This work presents a study of methods useful for modeling and understanding dynamical systems in the Galaxy. A natural coordinate system for the study of dynamical systems is the angle-action coordinate system. New methods for their approximation in general potentials are presented and discussed. These new tools are applied to the construction of dynamical models for two of the Galaxy's components: tidal streams and the Galactic disc. Tidal streams are remnants of tidally-stripped satellites in the Milky Way and experience the effects of the Galactic gravitational potential, while the Galactic disc provides insights into the nature of the Galaxy near the Sun. Appropriate action-based models are presented and discussed for these components, and extended to include further information such as the metallicity of stars.
Introduction.- Angle-Action Estimation in a General Axisymmetric Potential.- Actions, Angles and Frequencies from Numerically Integrated Orbits.- Action Estimation Using a Triaxial Stäckel Approximation.- Stream-Orbit Misalignment.- Stream Modelling in Angle-Frequency Space.- Determining the Velocity Dispersion of the Thick Disc.- Extended Distribution Functions for the Galactic Disc.- Conclusions.
Erscheint lt. Verlag | 25.6.2015 |
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Reihe/Serie | Springer Theses |
Zusatzinfo | XXII, 264 p. 85 illus., 35 illus. in color. |
Verlagsort | Cham |
Sprache | englisch |
Maße | 155 x 235 mm |
Themenwelt | Naturwissenschaften ► Physik / Astronomie ► Angewandte Physik |
Naturwissenschaften ► Physik / Astronomie ► Astronomie / Astrophysik | |
Technik ► Luft- / Raumfahrttechnik | |
Schlagworte | Action-based models • Angle-action co-ordinate system • Chemo-dynamical modelling • Dark matter distribution • Galactic disk distribution function • Milky Way dynamics • Milky Way science • Modelling galactic dynamics • Realistic galactic potentials • Tidal streams |
ISBN-10 | 3-319-18771-6 / 3319187716 |
ISBN-13 | 978-3-319-18771-6 / 9783319187716 |
Zustand | Neuware |
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