Gravitational Radiation from Close Binaries with Timevarying Masses
Abstract
In the quadrupole approximation of general relativity in the weakfield limit, a timevarying quadrupole moment generates gravitational radiation. Binary orbits are one of the main mechanisms for producing gravitational waves and are the main sources and backgrounds for gravitationalwave detectors across the multiband spectrum. In this paper, we introduce additional contributions to the gravitational radiation from close binaries that arise from timevarying masses along with those produced by orbital motion. Further, we derive phasedependent formulae for these effects in the quadrupolar limit for binary point masses, which reduce to the formulae that Peters & Mathews derived when the mass of each component is taken to be constant. Finally, we show that gravitational radiation from mass variation can be orders of magnitude greater than that of orbital motion.
 Authors:

 Univ. of Illinois at UrbanaChampaign, IL (United States)
 Publication Date:
 Research Org.:
 Krell Institute, Ames, IA (United States)
 Sponsoring Org.:
 USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF)
 OSTI Identifier:
 1614433
 Grant/Contract Number:
 NA0003864
 Resource Type:
 Accepted Manuscript
 Journal Name:
 The Astrophysical Journal (Online)
 Additional Journal Information:
 Journal Name: The Astrophysical Journal (Online); Journal Volume: 882; Journal Issue: 1; Journal ID: ISSN 15384357
 Publisher:
 Institute of Physics (IOP)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 79 ASTRONOMY AND ASTROPHYSICS; astronomy & astrophysics; binaries: close; gravitational waves
Citation Formats
Holgado, A. Miguel, and Ricker, Paul M. Gravitational Radiation from Close Binaries with Timevarying Masses. United States: N. p., 2019.
Web. https://doi.org/10.3847/15384357/ab3293.
Holgado, A. Miguel, & Ricker, Paul M. Gravitational Radiation from Close Binaries with Timevarying Masses. United States. https://doi.org/10.3847/15384357/ab3293
Holgado, A. Miguel, and Ricker, Paul M. Fri .
"Gravitational Radiation from Close Binaries with Timevarying Masses". United States. https://doi.org/10.3847/15384357/ab3293. https://www.osti.gov/servlets/purl/1614433.
@article{osti_1614433,
title = {Gravitational Radiation from Close Binaries with Timevarying Masses},
author = {Holgado, A. Miguel and Ricker, Paul M.},
abstractNote = {In the quadrupole approximation of general relativity in the weakfield limit, a timevarying quadrupole moment generates gravitational radiation. Binary orbits are one of the main mechanisms for producing gravitational waves and are the main sources and backgrounds for gravitationalwave detectors across the multiband spectrum. In this paper, we introduce additional contributions to the gravitational radiation from close binaries that arise from timevarying masses along with those produced by orbital motion. Further, we derive phasedependent formulae for these effects in the quadrupolar limit for binary point masses, which reduce to the formulae that Peters & Mathews derived when the mass of each component is taken to be constant. Finally, we show that gravitational radiation from mass variation can be orders of magnitude greater than that of orbital motion.},
doi = {10.3847/15384357/ab3293},
journal = {The Astrophysical Journal (Online)},
number = 1,
volume = 882,
place = {United States},
year = {2019},
month = {8}
}
Web of Science
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