Abstract
The post-Newtonian approximation is useful to discuss gravitational waveforms for binary inspirals. In this note, for retrograde circular orbits in the equatorial plane, we discuss the region of validity of the post-Newtonian approximation by using the gravitational energy flux derived numerically and analytically in the black hole perturbation approach. It is found that the edge of the allowable region behaves quite intricately, including prograde orbits even if we treat higher post-Newtonian orders.
| Original language | English |
|---|---|
| Article number | 027001 |
| Journal | Classical and Quantum Gravity |
| Volume | 35 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 25 2018 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)
Cite this
Note on accuracy of the post-Newtonian approximation for extreme-mass ratio inspirals : Retrograde orbits. / Fujita, Ryuichi; Sago, Norichika; Nakano, Hiroyuki.
In: Classical and Quantum Gravity, Vol. 35, No. 2, 027001, 25.01.2018.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Note on accuracy of the post-Newtonian approximation for extreme-mass ratio inspirals
T2 - Retrograde orbits
AU - Fujita, Ryuichi
AU - Sago, Norichika
AU - Nakano, Hiroyuki
PY - 2018/1/25
Y1 - 2018/1/25
N2 - The post-Newtonian approximation is useful to discuss gravitational waveforms for binary inspirals. In this note, for retrograde circular orbits in the equatorial plane, we discuss the region of validity of the post-Newtonian approximation by using the gravitational energy flux derived numerically and analytically in the black hole perturbation approach. It is found that the edge of the allowable region behaves quite intricately, including prograde orbits even if we treat higher post-Newtonian orders.
AB - The post-Newtonian approximation is useful to discuss gravitational waveforms for binary inspirals. In this note, for retrograde circular orbits in the equatorial plane, we discuss the region of validity of the post-Newtonian approximation by using the gravitational energy flux derived numerically and analytically in the black hole perturbation approach. It is found that the edge of the allowable region behaves quite intricately, including prograde orbits even if we treat higher post-Newtonian orders.
UR - http://www.scopus.com/inward/record.url?scp=85039696245&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85039696245&partnerID=8YFLogxK
U2 - 10.1088/1361-6382/aa9ad5
DO - 10.1088/1361-6382/aa9ad5
M3 - Article
AN - SCOPUS:85039696245
VL - 35
JO - Classical and Quantum Gravity
JF - Classical and Quantum Gravity
SN - 0264-9381
IS - 2
M1 - 027001
ER -