Banca de DEFESA: KELDER CAVALCANTI DE VASCONCELOS

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : KELDER CAVALCANTI DE VASCONCELOS
DATA : 19/12/2016
HORA: 14:00
LOCAL: Auditório do DFTE
TÍTULO:

Effects of non-linear electrodynamics on radiation propagation around charged compact object

PALAVRAS-CHAVES:

Charged black holes; Non-linear electrodynamics

PÁGINAS: 10
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Física
RESUMO:

: In this thesis, the propagation of non-linear electromagnetic waves is careful analyzed on a curved spacetime created by spherically symmetric mass and charge distribution. Using certain approximations we verified the existence of electromagnetic self-interaction between the background electrostatic field and the radiation that propagating in it, and we adopted for this analysis an approach known as effective metric. We observe that the effective metric does not generate effective events horizons, but the non linearities changes the event horizons usual positions of Reissner-Nordström black holes. In linear approximation, we compute how the self-interaction affects the geodesic deviation and the redshift of photons propagating near this massive charged object. Using the Euler-Heisenberg effective Lagrangian, we estimate the contribution of these self-interactions in the geometrical reshift near extremal compact objects.

MEMBROS DA BANCA:
Externo à Instituição - CARLOS AUGUSTO ROMERO FILHO - UFPB
Interno - 346835 - JANILO SANTOS
Presidente - 1674079 - LEO GOUVEA MEDEIROS
Externo à Instituição - PEDRO JOSÉ POMPEIA - ITA
Interno - 1672854 - RAIMUNDO SILVA JUNIOR