Circular orbits of a ball on a rotating conical turntable
Sign Up to like & getrecommendations! Published in 2018 at "Acta Mechanica"
DOI: 10.1007/s00707-019-02556-y
Abstract: This paper is concerned with the problem of a dynamically symmetric heavy ball rolling without slipping on a cone which rotates uniformly about its symmetry axis. The equations of motion of the system are obtained,… read more here.
Keywords: circular orbits; rotating conical; orbits ball; ball rotating ... See more keywords
Quasi circular orbits around prolate bodies
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab1880
Abstract: Recent observations of stellar occultations have revealed rings of particles around non-planetary bodies of the Solar system. These bodies are irregular and can be modelled by ellipsoids. In the context of numerical integrations for the… read more here.
Keywords: velocity; body; radial variation; quasi circular ... See more keywords
Gravitational and electromagnetic radiation from binary black holes with electric and magnetic charges: Circular orbits on a cone
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review D"
DOI: 10.1103/physrevd.102.103520
Abstract: We derive the effective one-body motion of the dyonic binary and explore features of the static orbit including the chaotic behavior. By using the post-Newtonian method, we calculate the total emission rate of energy and… read more here.
Keywords: electromagnetic radiation; radiation; electric magnetic; magnetic charges ... See more keywords
Light-ring pairs from A -discriminantal varieties
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.104012
Abstract: When geodesic equations are formulated in terms of an effective potential U , circular orbits are characterised by U = ∂aU = 0. In this paper we consider the case where U is an algebraic… read more here.
Keywords: pairs discriminantal; ring pairs; light ring; discriminantal varieties ... See more keywords
Equatorial timelike circular orbits around generic ultracompact objects
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review D"
DOI: 10.1103/physrevd.105.064026
Abstract: For a stationary, axisymmetric, asymptotically flat, ultra-compact [i.e. containing light-rings (LRs)] object, with a Z2 north-south symmetry fixing an equatorial plane, we establish that the structure of timelike circular orbits (TCOs) in the vicinity of… read more here.
Keywords: tcos; black holes; timelike circular; equatorial timelike ... See more keywords
Off-equatorial stable circular orbits for spinning particles
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.084023
Abstract: In this article, we investigate the motion of a spinning particle at a constant inclination, different from the equatorial plane, around a Kerr black hole. We mainly explore the possibilities of stable circular orbits for… read more here.
Keywords: equatorial stable; spinning particles; stable circular; orbits spinning ... See more keywords