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  Universal Relations for Gravitational-Wave Asteroseismology of Protoneutron Stars

Torres-Forne, A., Cerdá-Durán, P., Obergaulinger, M., Müller, B., & Font, J. A. (2019). Universal Relations for Gravitational-Wave Asteroseismology of Protoneutron Stars. Physical Review Letters, 123(5): 051102. doi:10.1103/PhysRevLett.123.051102.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-1720-F Version Permalink: http://hdl.handle.net/21.11116/0000-0004-7F4B-B
Genre: Journal Article

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Torres-Forne, A.1, Author              
Cerdá-Durán, Pablo, Author
Obergaulinger, Martin, Author
Müller, Bernhard, Author
Font, José A., Author
Affiliations:
1Computational Relativistic Astrophysics, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_2541714              

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Free keywords: General Relativity and Quantum Cosmology, gr-qc, Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE
 Abstract: State-of-the-art numerical simulations of core-collapse supernovae reveal that the main source of gravitational waves is the excitation of proto-neutron star modes during post-bounce evolution. In this work we derive universal relations that relate the frequencies of the most common oscillation modes observed, i.e. g-modes, p-modes and the f-mode, with fundamental properties of the system, such as the surface gravity of the proto-neutron star or the mean density in the region enclosed by the shock. These relations are independent of the equation of state, the neutrino treatment, and the progenitor mass and hence can be used to build methods to infer proto-neutron star properties from gravitational-wave observations alone. We outline how these measurements could be done and the constraints that could be placed on the proto-neutron star properties.

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 Dates: 2019-02-262019-02-272019
 Publication Status: Published in print
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 Identifiers: arXiv: 1902.10048
URI: http://arxiv.org/abs/1902.10048
DOI: 10.1103/PhysRevLett.123.051102
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Title: Physical Review Letters
Source Genre: Journal
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Pages: - Volume / Issue: 123 (5) Sequence Number: 051102 Start / End Page: - Identifier: -