Coalescing binary systems of compact objects to (post) sup 5/2 -Newtonian order: Late-time evolution and gravitational-radiation emission
- McDonnell Center for the Space Sciences, Department of Physics, Washington University, St. Louis, MO (USA)
The late-time evolution of binary systems of compact objects (neutron stars or black holes) is studied using the Damour-Deruelle (post){sup 5/2}-Newtonian equations of motion with relativistic corrections of all orders up to and including radiation reaction. Using the method of osculating orbital elements from celestial mechanics, we evolve the orbits to separations of {ital r}{approx}2{ital m}, where {ital m} is the total mass, at which point the (post){sup 5/2}-Newtonian approximation breaks down. With the orbits as input, we calculate the gravitational wave form and luminosity using a post-Newtonian formalism of Wagoner and Will. Results are obtained for systems containing various combinations of compact objects, for various values of the mass ratio {ital m}{sub 1}/{ital m}{sub 2}, and for various initial values of the orbital eccentricity.
- OSTI ID:
- 6363115
- Journal Information:
- Physical Review, D (Particles Fields); (USA), Vol. 42:4; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
BINARY STARS
ORBITS
BLACK HOLES
EINSTEIN FIELD EQUATIONS
EQUATIONS OF MOTION
GRAVITATIONAL FIELDS
GRAVITATIONAL RADIATION
GRAVITATIONAL WAVES
LUMINOSITY
MASS
NEUTRON STARS
RELATIVITY THEORY
SPACE-TIME
STAR EVOLUTION
DIFFERENTIAL EQUATIONS
EQUATIONS
FIELD EQUATIONS
FIELD THEORIES
GENERAL RELATIVITY THEORY
OPTICAL PROPERTIES
PARTIAL DIFFERENTIAL EQUATIONS
PHYSICAL PROPERTIES
RADIATIONS
STARS
640102* - Astrophysics & Cosmology- Stars & Quasi-Stellar
Radio & X-Ray Sources
657003 - Theoretical & Mathematical Physics- Relativity & Gravitation