Abstract
We consider the electromagnetic field occurring in the background of a static, axially symmetric vacuum solution of Einstein's field equations immersed in an external magnetic field. The solution, known as the γ metric (or Zipoy-Voorhees), is related to the Schwarzschild spacetime through a real positive parameter γ that describes its departure from spherical symmetry. We study the motion of charged and uncharged particles in this spacetime and particle collision in the vicinity of the singular surface and compare with the corresponding result for Schwarzschild. We show that there is a sharp contrast with the black hole case; in particular, in the prolate case (γ<1) particle collision can occur with an arbitrarily high center of mass energy. This mechanism could in principle allow one to distinguish such a source from a black hole.
| Original language | English |
|---|---|
| Article number | 044012 |
| Journal | Physical Review D |
| Volume | 99 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Feb 15 2019 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
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Charged particle motion and electromagnetic field in γ spacetime. / Benavides-Gallego, Carlos A.; Abdujabbarov, Ahmadjon; Malafarina, Daniele; Ahmedov, Bobomurat; Bambi, Cosimo.
In: Physical Review D, Vol. 99, No. 4, 044012, 15.02.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Charged particle motion and electromagnetic field in γ spacetime
AU - Benavides-Gallego, Carlos A.
AU - Abdujabbarov, Ahmadjon
AU - Malafarina, Daniele
AU - Ahmedov, Bobomurat
AU - Bambi, Cosimo
PY - 2019/2/15
Y1 - 2019/2/15
N2 - We consider the electromagnetic field occurring in the background of a static, axially symmetric vacuum solution of Einstein's field equations immersed in an external magnetic field. The solution, known as the γ metric (or Zipoy-Voorhees), is related to the Schwarzschild spacetime through a real positive parameter γ that describes its departure from spherical symmetry. We study the motion of charged and uncharged particles in this spacetime and particle collision in the vicinity of the singular surface and compare with the corresponding result for Schwarzschild. We show that there is a sharp contrast with the black hole case; in particular, in the prolate case (γ<1) particle collision can occur with an arbitrarily high center of mass energy. This mechanism could in principle allow one to distinguish such a source from a black hole.
AB - We consider the electromagnetic field occurring in the background of a static, axially symmetric vacuum solution of Einstein's field equations immersed in an external magnetic field. The solution, known as the γ metric (or Zipoy-Voorhees), is related to the Schwarzschild spacetime through a real positive parameter γ that describes its departure from spherical symmetry. We study the motion of charged and uncharged particles in this spacetime and particle collision in the vicinity of the singular surface and compare with the corresponding result for Schwarzschild. We show that there is a sharp contrast with the black hole case; in particular, in the prolate case (γ<1) particle collision can occur with an arbitrarily high center of mass energy. This mechanism could in principle allow one to distinguish such a source from a black hole.
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U2 - 10.1103/PhysRevD.99.044012
DO - 10.1103/PhysRevD.99.044012
M3 - Article
VL - 99
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 4
M1 - 044012
ER -