Notes 17 : Coupling of Angular Momenta 3

Coupling of Ket Spaces and the Addition of Angular Momenta

In these notes we discuss the coupling of ket spaces of systems to form the ket spaces of larger systems. The constituent systems may be independent of each other in some physical circumstances or in some models, while in other circumstances or more realistic models they may become coupled. We will see many examples of this process in this course, including the coupling of spin and orbital degr...

Evidence for coupling between the Sagittarius dwarf galaxy and the Milky Way warp

Using recent determinations of the mass and orbit of Sagittarius, I calculate its orbital angular momentum. From the latest observational data, I also calculate the angular momentum of the Milky Way’s warp. I find that both angular momenta are directed toward l ≈ 270, b = 0, and have magnitude 2–8× 10 M⊙ kpc km s , where the range in both cases reflects uncertainty in the mass. The coincidence ...

Dynamic Analysis of A Three-Rotor Flexible Coupling with Angular Misalignment

In this paper, the dynamic response of a three-rotor flexible coupling to the angularmisalignment has been studied. The coupling is a power transmission agent between the motor andgearbox, in the power transmission system of SAG Mill (semi autogenously mill) in the Gol-e-Gohariron ore complex in Sirjan, Iran. Degrees of freedom of the system are the model's lateral deflectionsand the rigid-body...

Classical Spin - Orbit Coupling and Periastron Advance

Radio timing observations of the SMC binary pulsar PSR J0045?7319 show, for the rst time in a binary pulsar, that classical spin-orbit coupling and periastron advance are occurring. From the observations , the angle between the B star spin axis and the orbital angular momentum is constrained to be 25 < < 41 (Kaspi et al. 1996b). Under the conventional assumption that the pre-supernova angular m...

Maple procedures for the coupling of angular momenta. An up-date of the Racah module