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- W2551020868 abstract "This thesis comprises some studies on the Weyl, Vaidya and Weyl distorted Schwarzschild(WDS) spacetimes. The main focal areas are : a) construction of near metric(NHM)for WDS spacetime and subsequently a horizon prescribed by the membraneformalism for black holes, b) application of membrane formalism and construction ofstretched horizons for Vaidya spacetime and c) using the thin shell formalism to construct anasymptotically flat spacetime with a Weyl interior where the construction does not violateenergy conditions. For a), a standard formalism developed in [1] has been used whereinthe metric is expanded as a Taylor series in ingoing Gaussian null coordinates with theaffine parameter as the expansion parameter. This expansion is used to construct a timelikestretched horizon just outside the true to facilitate some membrane formalismstudies, the theory for which was first introduced in [2]. b) applies the membrane formalismto Vaidya spacetime and also extends a part of the work done in [1] in which eventhorizon candidates were located perturbatively. Here, we locate stretched horizons in closeproximity to every event candidate located in [1]. c) is an attempt to induce Weyldistortions with a thin shell of matter in an asymptotically flat spacetime without violatingenergy conditions." @default.
- W2551020868 created "2016-11-30" @default.
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- W2551020868 date "2015-10-01" @default.
- W2551020868 modified "2023-09-24" @default.
- W2551020868 title "Some near horizon studies onWeyl and Vaidya spacetimes" @default.
- W2551020868 hasPublicationYear "2015" @default.
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