Artikelnummer | 9783838103884 |
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Produkttyp | Buch |
Preis | 104,00 CHF |
Verfügbarkeit | Lieferbar |
Einband | Kartonierter Einband (Kt) |
Meldetext | Folgt in ca. 10 Arbeitstagen |
Autor | Klement, Rainer |
Verlag | Südwestdeutscher Verlag für Hochschulschriften AG Co. KG |
Weight | 0,0 |
Erscheinungsjahr | 20150723 |
Seitenangabe | 192 |
Sprache | ger |
Anzahl der Bewertungen | 0 |
Stellar Phase-Space Structure and Dynamics in the Solar Neighbourhood Buchkatalog
This PhD thesis describes the search for, and analysis of, substructure in the phase-space distribution of stars within 1-2 kpc of the Sun. Such substructure, caused by stellar streams, is an important diagnostic of stellar dynamics and hierarchical formation of the Galaxy. While possibly phase-mixed, stellar streams remain detectable as coherent features in the space of integrals of motion. This thesis describes the development of new search techniques in phase- and [Fe/H]-space to derive "effective" integrals of motion that are most suitable for a comparison with the observables. An application of these techniques to two new data sets which contain radial velocity- and proper motion estimates reveals significant "phase-space overdensities" of stars on similar orbits, of which some are already known, but at least five are described here for the first time. This thesis also outlines a preperatory study in the context of GAIA to measure the local gravitational potential on kpc scale.
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