1994 (IPP)
Permanent URI for this collectionhttp://localhost:4000/handle/11007/2787
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Item A class of cylindrically symmetric models in string cosmology(2015-02-09) Tikekar, R.; Patel, L.K.; Dadhich, NareshA new class of physically relevant explicit solutions for string cosmological models endowed with cylindrical symmetry on the background of singularity free cosmological space times have been obtained and their physical and the kinematical features are discussed. The matter free limits of this class of solutions are observed to be the singularity free vacuum solutions of Patel and Dadhich.Item On the interior of the neutron star – II. The role of density variation parameter λ at densities 1015,1016, g cm-3(2015-02-18) Parui, Ramen KumarItem General relativity, collapse of rotating star and emission of gravity wave(2015-02-18) Parui, Ramen KumarItem Gravitational instability in the strongly nonlinear regime: A study of various approximations(2015-02-18) Sathyaprakash, B.S.; Sahni, Varun; Munshi, Dipak; Pogosysn, D.; Melott, A.L.Item A dust lane in the radio galaxy 3C270(2015-02-18) Mahabal, A; Kembhavi, A.K.; Singh, K. P.; Bhatt, P.N.; Prabhu, T.P.Item Squeezing and dual recycling in laser interferometric gravitational wave detectors(2015-02-18) Bhawal, Biplab; Chickarmane, VijayWe calculate the response of an ideal Michelson interferometer incorporating both dual recycling and squeezed light to gravitational waves. The photon counting noise has contributions from the light which is sent in through the input ports as well as the vacuum Modes at sideband frequencies generated by the gravitational waves. The minimum. detectable gravity wave amplitude depends on the frequency of the wave as well as squeezing and recycling parameters. Both squeezing and the broadband operation of dual recycling reduce the photon counting noise and hence the two techniques can be used together to make more accurate phase measurements. The variance of photon number is found to be time-dependent. Oscillating at the gravity wave frequency but of much lower order than the constant part.Item On the interior of the neutron star – II. The role of density variation parameter λ at densities 1015,1016, g cm-3(2015-02-18) Parui, Ramen Kumar