3 papers
gr-qc2026
Secular evolution of orbital parameters for general bound orbits in Kerr spacetime
Norichika Sago, Ryuichi Fujita, Soichiro Isoyama +1
We analytically derive the secular changes of the orbital parameters, i.e., energy, angular momentum, and Carter constant, for general bound orbits in Kerr spacetime, at leading or…
gr-qc2026
5PN eccentric waveforms for intermediate-mass-ratio-inspirals (IMRIs) from post-Newtonian and black hole perturbation theory
M Laxman, Ryuichi Fujita, Chandra Kant Mishra
Detection of gravitational waves from compact binaries involving at least one intermediate mass black hole, and component mass ratios in the range -, are among the pr…
gr-qc2025
Post-Newtonian templates for phase evolution of spherical extreme mass ratio inspirals
Norichika Sago, Ryuichi Fujita, Hiroyuki Nakano
We present various post-Newtonian (PN) models for the phase evolution of compact objects moving along quasi-spherical orbits in Kerr spacetime derived by using the 12PN analytic fo…