The gravitational wave symphony of the Universe

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Abstract

The new millennium will see the upcoming of several ground-based interferometric gravitational wave antennas. Within the next decade a space-based antenna may also begin to observe the distant Universe. These gravitational wave detectors will together operate as a network taking data continuously for several years, watching the transient and continuous phenomena occurring in the deep cores of astronomical objects and dense environs of the early Universe where gravity was extremely strong and highly nonlinear. The network will listen to the waves from rapidly spinning non-axisymmetric neutron stars, normal modes of black holes, binary black hole inspiral and merger, phase transitions in the early Universe, quantum fluctuations resulting in a characteristic background in the early Universe. The gravitational wave antennas will open a new window to observe the dark Universe unreachable via other channels of astronomical observations.

Original languageEnglish (US)
Pages (from-to)457-475
Number of pages19
JournalPramana - Journal of Physics
Volume56
Issue number4
DOIs
StatePublished - Apr 2001

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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