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Article
Dynamical Behaviour of Compressible Homogeneous Uniformly Rotating Ellipsoids with Nonparallel Angular Velocity and Vorticity
The study of nonequilibrium, self-gravitating, compressible, homogeneous and uniformly rotating gaseous ellipsoidal models is extended from parallel to nonparallel angular velocity and vorticity. The different...
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Article
Effects of variations of parallel angular velocity and vorticity on the oscillations of compressible homogeneous rotating ellipsoids
Earlier work on the oscillations of an ellipsoid is extended to investigate the behaviour of a nonequilibrium compressible homogeneous rotating gaseous ellipsoid, with the components of the velocity field as l...
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Article
Radiation pressure effects in the oscillations of compressible rotating homogeneous spheroids
Earlier models of compressible, rotating, and homogeneous ellipsoids with gas pressure are generalized to include the presence of radiation pressure. Under the assumptions of a linear velocity field of the flu...
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Article
The effects of gravitational radiation on circular binary systems with spins
In any theory of gravitation that predicts the existence of gravitational waves, it is shown that, in the absence of mass exchange and mass loss and subjected to a condition, a circular binary system with sphe...
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Article
On the mass-radius relation in close binary systems
In a close binary system with circular orbits in which mass transfer occurs when material from one star fills up and possibly spills over its Roche lobe, the usual mass-radius relation cannot be used as it wou...
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Article
Effect of gravitational radiation on the evolution and spins of binary systems
By taking into account the torque arising from gravitational radiation reaction, it is shown that the spins of spherically symetrical components of binary systems remain unchanged, while those of non-spherical...
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Article
A few observations of and remarks on V1500 Cygni
The development of the post-nova light curve of V1500 Cyg inUBV andHβ, for 15 nights in September and October 1975 are presented. We confirm previous reports that superimposed on the steady decline of the light c...
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Article
Equivalence of some integrals of the radiation theory
A definite integral which occurs in radiation theory is shown to be equal in value to another definite integral by evaluating the flux from a spherically symmetrical radiating sphere in two ways. As a corollar...
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Article
The effect of gravitational waves from a spinning rod on its rigidity
The energy and angular momentum flux carried by gravitational waves from a spinning rod are calculated exactly in the weak field limit of general relativity. It is shown that contrary to common belief, the ene...