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41.
An exact Bianchi type-I cosmological model in the presence of zero-mass scalar fields is obtained when the source of the gravitational field is a perfect fluid with pressure equal to energy density. Some properties of the model are discussed. 相似文献
42.
A. S. Subrahmanyam K. S. R. Murthy S. Lakshminarayana M. M. Malleswara Rao K. Venkateswarlu T. C. S. Rao 《Geo-Marine Letters》1997,17(3):202-206
Magnetic data over the eastern continental margin of India and adjacent Bengal fan demarcate two major lineaments. A high
amplitude N–S-trending lineation of the Cauvery offshore Basin corresponds to the offshore fragment of the 80°E lineament
recorded onland. A N–S lineation of very high amplitude anomaly off Chilka lake considered as the possible northward extension
of the 85°E ridge delineated, hitherto in Bengal Fan. A subdued magnetic anomaly zone is demarcated seaward of the continent–ocean
boundary (COB) in the Bengal Fan. Over the northern Bengal Fan this zone is delineated east of 85°E lineation. This quiet
zone might have evolved during the Early Cretaceous period of normal magnetic polarity between M0 and 34 (120–84 Ma) anomalies.
Received: 6 April 1995 / Revision received: 3 September 1996 相似文献
43.
The exterior field of the Bianchi type-II metric in the Lyttleton-Bondi universe is considered and an exact cosmological model is presented. The behaviour of the model is also discussed. 相似文献
44.
Vacuum Bianchi type V and VI0 cosmological models obtained in a new scalar-tensor theory of gravitation proposed by Schmidtet al. Some physical properties of these models are also discussed. 相似文献
45.
Spatially-homogenous and anisotropic Bianchi type-VI0 cosmological models are obtained, in Barber's second self-creation theory of gravitation, both in vacuum and in the presence of perfect fluid with pressure equal to energy density. Some properties of the model are discussed. 相似文献
46.
D. R. K. Reddy M. B. Avadhanulu R. Venkateswarlu 《Astrophysics and Space Science》1987,134(1):201-204
A result having formal similarity to Birkhoff's theorem in general relativity has been proved in the presence of electromagnetic fields in a self-creation theory of gravitation proposed by Barber, when the scalar field is independent of time. 相似文献