scholarly journals Density profiles of charged test particles diffusion a slab of finite thickness

1983 ◽  
Vol 34 (3) ◽  
pp. 418-418
Author(s):  
G. Spiga ◽  
V. C. Boffi ◽  
A. Magnavacca
Keyword(s):  
Finite Thickness ◽  
Density Profiles ◽  
Test Particles ◽  
Charged Test

scholarly journals Earth-size planet formation in the habitable zone of circumbinary stars

2020 ◽  
Vol 494 (1) ◽  
pp. 1045-1057 ◽  
Author(s):  
G O Barbosa ◽  
O C Winter ◽  
A Amarante ◽  
A Izidoro ◽  
R C Domingos ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Planet Formation ◽  
Terrestrial Planet ◽  
Close Binary ◽  
Habitable Zone ◽  
Density Profiles ◽  
Habitable Planets ◽  
Habitable Zones ◽  
Test Particles ◽  
The Stability

ABSTRACT This work investigates the possibility of close binary (CB) star systems having Earth-size planets within their habitable zones (HZs). First, we selected all known CB systems with confirmed planets (totaling 22 systems) to calculate the boundaries of their respective HZs. However, only eight systems had all the data necessary for the computation of HZ. Then, we numerically explored the stability within HZs for each one of the eight systems using test particles. From the results, we selected five systems that have stable regions inside HZs, namely Kepler-34,35,38,413, and 453. For these five cases of systems with stable regions in HZ, we perform a series of numerical simulations for planet formation considering discs composed of planetary embryos and planetesimals, with two distinct density profiles, in addition to the stars and host planets of each system. We found that in the case of the Kepler-34 and 453 systems, no Earth-size planet is formed within HZs. Although planets with Earth-like masses were formed in Kepler-453, they were outside HZ. In contrast, for the Kepler-35 and 38 systems, the results showed that potentially habitable planets are formed in all simulations. In the case of the Kepler-413system, in just one simulation, a terrestrial planet was formed within HZ.

The field of an accelerating black hole embedded in a magnetic universe

1984 ◽  
Vol 62 (9) ◽  
pp. 889-897
Author(s):  
K. D. Krori ◽  
Madhumita Barua
Keyword(s):  
Black Hole ◽  
Test Particles ◽  
Charged Test

In this paper, we investigate the field of an accelerating black hole embedded in a magnetic universe and present some interesting properties of the field with respect to the trapping of uncharged and charged test particles and their absorption into the black hole.

scholarly journals Non-geodesic orbital and epicyclic frequencies in vicinity of slowly rotating magnetized neutron stars

2012 ◽  
Vol 8 (S290) ◽  
pp. 185-186
Author(s):  
Pavel Bakala ◽  
Martin Urbanec ◽  
Eva Šrámková ◽  
Zdeněk Stuchlík ◽  
Gabriel Török
Keyword(s):  
Magnetic Field ◽  
Neutron Stars ◽  
Equations Of Motion ◽  
Solution Of Equations ◽  
Test Particles ◽  
Perturbative Method ◽  
Relativistic Approach ◽  
Charged Test ◽  
The Magnetic Field

AbstractWe study non-geodesic corrections to the quasicircular motion of charged test particles in the field of magnetized slowly rotating neutron stars. The gravitational field is approximated by the Lense-Thirring geometry, the magnetic field is of the standard dipole character. Using a fully-relativistic approach we determine influence of the electromagnetic interaction (both attractive and repulsive) on the quasicircular motion. We focus on the behaviour of the orbital and epicyclic frequencies of the motion. Components of the four-velocity of the orbiting charged test particles are obtained by numerical solution of equations of motion, the epicyclic frequencies are obtained by using the standard perturbative method. The role of the combined effect of the neutron star magnetic field and its rotation in the character of the orbital and epicyclic frequencies is discussed.

scholarly journals ChargedQ-balls and boson stars and dynamics of charged test particles

2014 ◽  
Vol 89 (8) ◽  
Author(s):  
Yves Brihaye ◽  
Valeria Diemer ◽  
Betti Hartmann
Keyword(s):  
Boson Stars ◽  
Test Particles ◽  
Charged Test

scholarly journals Path and path deviation equations for p-branes

Open Physics ◽  
2012 ◽  
Vol 10 (2) ◽  
Author(s):  
Matej Pavšič ◽  
Magd Kahil
Keyword(s):  
Point Particles ◽  
Test Particles ◽  
Strings And Branes ◽  
Charged Test ◽  
Charged Point ◽  
Path Deviation ◽  
Kaluza Klein

AbstractPath and path deviation equations for neutral, charged, spinning and spinning charged test particles, using a modified Bazanski Lagrangian, are derived. We extend this approach to strings and branes. We show how the Bazanski Lagrangian for charged point particles and charged branes arises à la Kaluza-Klein from the Bazanski Lagrangian in 5-dimensions.

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