Kod: 06986339
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 dynam ... więcej
Za ten zakup dostaniesz 265 punkty
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.
Kategoria Książki po angielsku Mathematics & science Physics
457.04 zł
Od roku 2008 obsłużyliśmy wielu miłośników książek, ale dla nas każdy był tym wyjątkowym.
Copyright! ©2008-24 libristo.pl Wszelkie prawa zastrzeżonePrywatnieCookies
Dobre na wszystkich stronach
Koszyk ( pusty )