2 papers
gr-qc2026
Innermost stable circular orbit (ISCO) of arbitrary-mass compact binaries with spins at the fourth post-Newtonian order
Luc Blanchet, David Langlois, Etienne Ligout
We compute, up to 4th post-Newtonian (4PN) order, the gauge-invariant stability criterion determining the innermost stable circular orbit (ISCO) for arbitrary-mass compact binaries…
gr-qc2025
Innermost stable circular orbit of arbitrary-mass compact binaries at fourth post-Newtonian order
Luc Blanchet, David Langlois, Etienne Ligout
We compute by means of post-Newtonian (PN) methods the innermost stable circular orbit (ISCO) of arbitrary-mass (in particular, comparable-mass) compact binaries. Two methods are u…