TY - JOUR
T1 - Shadow cast and deflection angle of Kerr-Newman-Kasuya spacetime
AU - Övgün, Ali
AU - Sakalli, Izzet
AU - Saavedra, Joel
N1 - Funding Information:
This work is supported by Comisión Nacional de Ciencias y Tecnología of Chile (CONICYT) through FONDECYT Grant No 3170035 (A. Ö.). A. Ö. is grateful to Institute for Advanced Study, Princeton for hospitality.
Publisher Copyright:
© 2018 IOP Publishing Ltd and Sissa Medialab.
PY - 2018/10/22
Y1 - 2018/10/22
N2 - We study the shadow cast or silhouette generated by a Kerr-Newman-Kasuya (KNK) spacetime (rotating dyon black hole). It is shown that in addition to the angular momentum of the black hole, the dyon charge also affects the shadow image of the KNK black hole. Moreover, we analyze the weak gravitational lensing by the KNK black hole by using the Gauss-Bonnet theorem. Finally, we find that extra dyon charge decreases both the deflection angle and shadow of the KNK black hole.
AB - We study the shadow cast or silhouette generated by a Kerr-Newman-Kasuya (KNK) spacetime (rotating dyon black hole). It is shown that in addition to the angular momentum of the black hole, the dyon charge also affects the shadow image of the KNK black hole. Moreover, we analyze the weak gravitational lensing by the KNK black hole by using the Gauss-Bonnet theorem. Finally, we find that extra dyon charge decreases both the deflection angle and shadow of the KNK black hole.
KW - GR black holes
KW - gravitational lensing
KW - gravitational waves/theory
KW - gravity
UR - http://www.scopus.com/inward/record.url?scp=85056140593&partnerID=8YFLogxK
U2 - 10.1088/1475-7516/2018/10/041
DO - 10.1088/1475-7516/2018/10/041
M3 - Article
AN - SCOPUS:85056140593
VL - 2018
JO - Journal of Cosmology and Astroparticle Physics
JF - Journal of Cosmology and Astroparticle Physics
SN - 1475-7516
IS - 10
M1 - 041
ER -