Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2003-10-31
Astrophys.SpaceSci.315:341-346,2008
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
15 pages, 3 eps figures
Scientific paper
10.1007/s10509-008-9843-2
Static spherically symmetric anisotropic source has been studied for the Einstein-Maxwell field equations assuming the erstwhile cosmological constant $ \Lambda $ to be a space-variable scalar, viz., $ \Lambda = \Lambda(r) $. Two cases have been examined out of which one reduces to isotropic sphere. The solutions thus obtained are shown to be electromagnetic in origin as a particular case. It is also shown that the generally used pure charge condition, viz., $ \rho + p_r = 0 $ is not always required for constructing electromagnetic mass models.
Bhadra Sumana
Ray Saibal
Sengupta Anand S.
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