Physics & Astronomy: Recent submissions

Now showing items 246-250 of 659

    • Higher spin relativistic wave-equations 

      Koutroulos, Christos G. (University of St Andrews, 1980) - Thesis
      In this work we have undertaken the study of some aspects of higher spin relativistic wave equations of the first order. These aspects are their definiteness of charge, their second quantization and their causal propagation. ...

    • On the quantization and measurement of momentum observables 

      McFarlane, Keith (University of St Andrews, 1980) - Thesis
      This thesis is the outcome of research conducted into the quantization of observables defined over a Riemannian configuration manifold, and is naturally divided into three chapters: The first chapter is essentially ...

    • Drag forces in liquid helium II 

      Martin, Colin N. B. (University of St Andrews, 1969) - Thesis
      Measurements of drag forces an spheres end a cylinder in open rectangular channels in liquid helium II heat flow and superflow wore mode at temperatures between 1.3°K and the λ-point. The drag forces were measured by the ...

    • Dissipative flow in the superfluid helium film in the temperature region 1.63K to 0.01K 

      Toft, Michael W. (University of St Andrews, 1978) - Thesis
      Experiments on helium film flow over a stainless steel beaker rim were carried out in the temperature region 1.63K to 11mK. No previous measurements have been made below 35mK. The results of other studies of film flow below ...

    • Measuring the Hubble constant from reverberating accretion discs in active galaxies 

      Collier, Stefan J (University of St Andrews, 1999) - Thesis
      The standard paradigm of active galactic nuclei (AGN) postulates that their luminosity, L ~ 10³⁹⁻⁴⁸erg s⁻¹, derives from the accretion of gas onto a supermassive black hole, mass M ~ 10⁶⁻⁹M☉, at the centre of a host galaxy. ...