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Galin N. Gyulchev
Galin N. Gyulchev
Associate Professor at "Sofia University", Faculty of Physics, Department of Theoretical Physics
E-mail confirmado em phys.uni-sofia.bg
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Connection between black-hole quasinormal modes and lensing in the strong deflection limit
IZ Stefanov, SS Yazadjiev, GG Gyulchev
Physical review letters 104 (25), 251103, 2010
1572010
Gravitational lensing by rotating naked singularities
GN Gyulchev, SS Yazadjiev
Physical Review D 78 (8), 083004, 2008
1102008
Kerr-Sen dilaton-axion black hole lensing in the strong deflection limit
GN Gyulchev, SS Yazadjiev
Physical Review D 75 (2), 023006, 2007
1062007
On the shadow of rotating traversable wormholes
G Gyulchev, P Nedkova, V Tinchev, S Yazadjiev
The European Physical Journal C 78, 1-12, 2018
1052018
Weak Gravitational lensing by phantom black holes and phantom wormholes using the Gauss–Bonnet theorem
A Övgün, G Gyulchev, K Jusufi
Annals of Physics 406, 152-172, 2019
1042019
Image of the Janis-Newman-Winicour naked singularity with a thin accretion disk
G Gyulchev, P Nedkova, T Vetsov, S Yazadjiev
Physical Review D 100 (2), 024055, 2019
902019
Gravitational lensing by phantom black holes
GN Gyulchev, IZ Stefanov
Physical Review D 87 (6), 063005, 2013
602013
Distinguishing rotating naked singularities from Kerr-like wormholes by their deflection angles of massive particles
K Jusufi, A Banerjee, G Gyulchev, M Amir
The European Physical Journal C 79, 1-13, 2019
452019
Observational signatures of strongly naked singularities: image of the thin accretion disk
G Gyulchev, J Kunz, P Nedkova, T Vetsov, S Yazadjiev
The European Physical Journal C 80, 1-20, 2020
432020
Image of the thin accretion disk around compact objects in the Einstein–Gauss–Bonnet gravity
G Gyulchev, P Nedkova, T Vetsov, S Yazadjiev
The European Physical Journal C 81, 1-10, 2021
362021
Photon surfaces, shadows, and accretion disks in gravity with minimally coupled scalar field
I Bogush, D Gal’tsov, G Gyulchev, K Kobialko, P Nedkova, T Vetsov
Physical Review D 106 (2), 024034, 2022
182022
Shadows of black holes in vector-tensor galileons modified gravity
T Vetsov, G Gyulchev, S Yazadjiev
arXiv preprint arXiv:1801.04592, 2018
172018
Analytical Kerr-Sen dilaton-axion black hole lensing in the weak deflection limit
GN Gyulchev, SS Yazadjiev
Physical Review D 81 (2), 023005, 2010
122010
Cusp structure in shadows casted by rotating wormholes
G Gyulchev, P Nedkova, V Tinchev, S Yazadjiev
AIP Conference Proceedings 2075 (1), 2019
112019
Polarized image of equatorial emission in horizonless spacetimes: Traversable wormholes
V Deliyski, G Gyulchev, P Nedkova, S Yazadjiev
Physical Review D 106 (10), 104024, 2022
92022
Gravitational lensing by rotating naked singularities in the equatorial plane
G Gyulchev, S Yazadjiev
AIP Conference Proceedings 946 (1), 106-118, 2007
82007
Yazadjiev, S2018EPJC. 78. 544G. vol. 78
G Gyulchev, P Nedkova, V Tinchev
Eur. Phys. J. C, 544, 2018
72018
Quasiperiodic oscillations and Tomimatsu-Sato δ= 2 space-time
IZ Stefanov, GG Gyulchev, SS Yazadjiev
Physical Review D 87 (8), 083005, 2013
62013
78h3004G. vol. 78
GN Gyulchev, S Yazadjiev
Phys. Rev. D, 083004, 2008
52008
Polarized image of equatorial emission in horizonless spacetimes: Naked singularities
V Deliyski, G Gyulchev, P Nedkova, S Yazadjiev
Physical Review D 108 (10), 104049, 2023
32023
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