2010 (IPP)

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Non-adiabatic gravitational collapse of a superdense star
(2010-06-01) Sarwe, S. B.; Tikekar, R.
The relativistic equations governing the non-adiabatic shear-free collapse of massive superdense stars in the presence of dissipative forces producing heat ﬂow in the background of space–times of the Vaidya–Tikekar ansatz with associated physical three-spaces that have the three-spheroidal geometry are formulated. It is shown how the system can be used to examine the development and progress of the collapse during subsequent epochs until the radiating star becomes a black hole.
Group theoretic approach to detecting gravitational waves from asymmetric rotating neutron stars
(2010-10-12) Dhurandhar, Sanjeev; Krishnan, B.
The era of advanced ground based interferometric detectors of gravitational waves (GW) has arrived. These detectors are expected to go line in six years or so from now and which will have requisite sensitivity for detecting and observing astrophysical gravitational wave sources. In this article we will focus on a speciﬁc GW source, the GWs emitted by an isolated rotating neutron star/pulsar, and describe a novel approach to address this highly com- putationally intensive problem. We will describe how the symmetries in the model can be potentially used to reduce the computational effort.