167 citations · 1.6k across the 44 of their papers we have counts for
4 papers · 1 filter
Redshift and frequency comparison in Schwarzschild spacetime
Dennis Philipp, Eva Hackmann, Claus Laemmerzahl
We derive exact expressions for the relativistic redshift between an Earth-bound observer, that is meant to model a standard clock on the Earth's surface, and various (geodesic) ob…
Modeling approaches for precise relativistic orbits: Analytical, Lie-series, and pN approximation
Dennis Philipp, Florian Wöske, Liliane Biskupek +5
Accurate orbit modeling plays a key role in contemporary and future space missions such as GRACE and its successor GRACE-FO, GNSS, and altimetry missions. To fully exploit the tech…
Relativistic dust accretion of charged particles in Kerr-Newman spacetime
Kris Schroven, Eva Hackmann, Claus Lämmerzahl
We describe a new analytical model for the accretion of particles from a rotating and charged spherical shell of dilute collisionless plasma onto a rotating and charged black hole.…
Definition of the relativistic geoid in terms of isochronometric surfaces
Dennis Philipp, Volker Perlick, Dirk Puetzfeld +2
We present a definition of the geoid that is based on the formalism of general relativity without approximations; i.e. it allows for arbitrarily strong gravitational fields. For th…