LogoLogo
  • Bio
  • Fyzika
  • V médiích
  • Fotografie
  • Výstavy
  • Kontakt

    Gravitational lensing by regular black holes surrounded by plasma

    Zdeněk Stuchlík · Leden 01, 2017 · Fyzika · 0 comments
    0

    Publication date: Jan 2017

    Abstract:
    In the weak field approximation, we study the gravitational lensing near
    the regular Bardeen, Hayward and Ayon-Beato-Garcia (ABG) black holes
    surrounded by plasma. The exact expressions for the deflection angle of
    the photons due to the effect of the gravitational field and the plasma
    have been obtained. The analysis of the image source brightness
    magnification in the background spacetimes of (i) Bardeen, (ii) Hayward
    and (iii) ABG regular black holes have shown that the increase of the
    corresponding charge of regular black hole causes the increase in the
    magnification of the source image. In addition to the primary ring, one
    may observe the secondary ring with smaller magnification. The influence
    of the plasma with (i) constant and (ii) radial power law electron
    density to the magnification of the source image has been studied.

    Authors:
    Abdujabbarov, Ahmadjon; Toshmatov, Bobir; Schee, Jan; Stuchlík, Zdeněk; Ahmedov, Bobomurat;

    https://ui.adsabs.harvard.edu/abs/2017IJMPD..2641011A

      Facebook   Pinterest   Twitter   Google+

    Leave a Comment! Zrušit odpověď na komentář

    You must be logged in to post a comment.
    Archivy
    Copyright © 2016 Zdeněk Stuchlík