Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions
The spatially conformally flat approximation (CFA) is a viable method to deduce initial conditions for the subsequent evolution of binary neutron stars employing the full Einstein equations. Here we analyze the viability of the CFA for the general relativistic hydrodynamic initial conditions of bina...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in Astronomy |
| Online Access: | http://dx.doi.org/10.1155/2017/6127031 |
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| author | In-Saeng Suh Grant J. Mathews J. Reese Haywood N. Q. Lan |
| author_facet | In-Saeng Suh Grant J. Mathews J. Reese Haywood N. Q. Lan |
| author_sort | In-Saeng Suh |
| collection | DOAJ |
| description | The spatially conformally flat approximation (CFA) is a viable method to deduce initial conditions for the subsequent evolution of binary neutron stars employing the full Einstein equations. Here we analyze the viability of the CFA for the general relativistic hydrodynamic initial conditions of binary neutron stars. We illustrate the stability of the conformally flat condition on the hydrodynamics by numerically evolving ~100 quasicircular orbits. We illustrate the use of this approximation for orbiting neutron stars in the quasicircular orbit approximation to demonstrate the equation of state dependence of these initial conditions and how they might affect the emergent gravitational wave frequency as the stars approach the innermost stable circular orbit. |
| format | Article |
| id | doaj-art-65a397ec6285400bb8fa1d25f5c12192 |
| institution | Kabale University |
| issn | 1687-7969 1687-7977 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Astronomy |
| spelling | doaj-art-65a397ec6285400bb8fa1d25f5c121922025-02-03T01:05:32ZengWileyAdvances in Astronomy1687-79691687-79772017-01-01201710.1155/2017/61270316127031Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial ConditionsIn-Saeng Suh0Grant J. Mathews1J. Reese Haywood2N. Q. Lan3Center for Astrophysics, Department of Physics and Center for Research Computing, University of Notre Dame, Notre Dame, IN 46556, USACenter for Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USACenter for Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USACenter for Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USAThe spatially conformally flat approximation (CFA) is a viable method to deduce initial conditions for the subsequent evolution of binary neutron stars employing the full Einstein equations. Here we analyze the viability of the CFA for the general relativistic hydrodynamic initial conditions of binary neutron stars. We illustrate the stability of the conformally flat condition on the hydrodynamics by numerically evolving ~100 quasicircular orbits. We illustrate the use of this approximation for orbiting neutron stars in the quasicircular orbit approximation to demonstrate the equation of state dependence of these initial conditions and how they might affect the emergent gravitational wave frequency as the stars approach the innermost stable circular orbit.http://dx.doi.org/10.1155/2017/6127031 |
| spellingShingle | In-Saeng Suh Grant J. Mathews J. Reese Haywood N. Q. Lan Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions Advances in Astronomy |
| title | Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions |
| title_full | Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions |
| title_fullStr | Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions |
| title_full_unstemmed | Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions |
| title_short | Analysis of the Conformally Flat Approximation for Binary Neutron Star Initial Conditions |
| title_sort | analysis of the conformally flat approximation for binary neutron star initial conditions |
| url | http://dx.doi.org/10.1155/2017/6127031 |
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