The equatorial motion of the charged test particles in Kerr–Newman–Taub–NUT spacetime

Equatorial Bañados-Silk-West effect in Kerr-Newman-Taub-NUT spacetime revisited

“…which is the same specific angular momentum found in [23,24] for a particle that is confined to move over the equatorial plane. Above, K and L are the values of K and L respectively for a particle with constant θ geodesic.…”

“…Literature [2,23,24] stated that equatorial geodesics in KNTN spacetime can exist in certain cases, i.e. arbitrary values of rotation parameter and NUT parameter of the spacetime does not guarantee the existence of equatorial geodesics.…”

“…arbitrary values of rotation parameter and NUT parameter of the spacetime does not guarantee the existence of equatorial geodesics. The nature of equatorial geodesics in KNTN spacetime was explored further in [24]. In any case, it is clear that we need to impose additional constraints to analyze BSW effect in a case for equatorial geodesics in KNTN spacetime.…”

Dynamics of charged and rotating NUT black holes in Rastall gravity

“…and χ = a sin 2 θ + 2n cos θ are both functions of r and θ. This solution is similar to the ordinary Kerr-Newman-NUT black hole, [21][22][23][24][25][26] but with extra terms in the ∆ function that arises from quintessence and Rastall parameter. Furthermore, metric solution in Eq.…”

Rotating and charged Taub-NUT-(A)dS spacetimes on a 3-brane

“…With or without the electric charge and cosmological constant in the discussions, this solution has been studied rigorously in literature [38,39,40,41,42,43,44,45,46,47]. Despite the irregularity of spacetime with NUT parameter on its rotational axis [48,49,50], most aspects of this type of spacetime resemble those of black holes [54,53,52,51,55]. The NUT parameter itself has an interesting interpretation [37], i.e.…”