391 citations · 2.6k across the 85 of their papers we have counts for
87 papers
Gravitational-Wave Sky Mapping with Pulsar Timing Arrays: The Full Earth-Pulsar Response and Fundamental Resolution Limits
S. A. Andrianov, S. M. Kopeikin
Pulsar timing arrays (PTAs) are the only means to observe nanohertz gravitational waves (GWs). While current analyses primarily exploit the Earth term, the full detector response e…
Local coordinates and motion of a test particle in the McVittie spacetime
Vishal Jayswal, Sergei M. Kopeikin
We consider the orbital motion of a test particle in the gravitational field of a massive body (that might be a black hole) with mass placed on the expanding cosmological manif…
Lunar Time in General Relativity
Sergei M. Kopeikin, George H. Kaplan
We introduce the general-relativistic definition of Lunar Coordinate Time (TCL) based on the IAU 2000 resolutions that provide a framework for relativistic reference systems. From…
The Science of Fundamental Catalogs
Sergei M. Kopeikin, Valeri V. Makarov
This review paper discusses the science of astrometric catalogs, their current applications and future prospects for making progress in fundamental astronomy, astrophysics and grav…
Extending Science from Lunar Laser Ranging
Vishnu Viswanathan, Erwan Mazarico, Stephen Merkowitz +18
The Lunar Laser Ranging (LLR) experiment has accumulated 50 years of range data of improving accuracy from ground stations to the laser retroreflector arrays (LRAs) on the lunar su…
Post-Newtonian Lagrangian of an N-body System with Arbitrary Mass and Spin Multipoles
Sergei M. Kopeikin
The present paper derives the post-Newtonian Lagrangian of translational motion of N arbitrary-structured bodies with all mass and spin multipoles in a scalar-tensor theory of grav…