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Научни приноси на проф. доктор на науките Стойчо Язаджиев
Глава от книга
Daniela D. Doneva, Stoytcho Yazadjiev, Dynamics of Scalarization, Springer 2024
Монография
1 Petya Nedkova, Stoytcho Yazadjiev, Mathematical Theory of Black Holes in Higher Dimensions, Springer, Lect.Notes Phys. 1031 (2024) 2024
2 Petya Nedkova, Stoytcho Yazadjiev, "Mathematical aspects of static and stationary higher dimensional spacetimes", Ref, Рецензирано 2019
Научен проект
1 Стойчо Язаджиев, Машинно обучение чрез физично информирани невронни мрежи, Член, , Номер на договора:KP-06-N62/6 2023
2 Стойчо Язаджиев, Тестване на природата на самогравитиращи компактни обекти с горещи петна, Член, , Номер на договора:КП-06-ПН-68/7 2023
3 Стойчо Язаджиев, Търсене на нови фундаментални полета в ерата на многоканалната астрофизика, Член, , Номер на договора:BG-RRP-2.004-0008-C01 2023
4 Стойчо Язаджиев, Ултракомпакни обекти в Айнщайновата и модифицираните теории на гравитациията и фотонни структури, Член, , Номер на договора:КП-06-РУСИЯ/13 2020
5 Стойчо Язаджиев, Астрофизични ограничения върху уравнението на състоянието на неутронната материя и ефекти, дължащи се на съвременни реалистични ядрени потенциали, включващи многонуклонни взаимодействия, Член, , Номер на договора:KP-06-N-38/12 2019
6 Стойчо Язаджиев, Сенки и релативистични изображения на акреционни дискове: нов поглед върху свойствата на компактните обекти, Член, , Номер на договора:КП-06-Н38/2 2019
7 Стойчо Язаджиев, Черни дупки и тяхната динамика в скаларно-тензорните теории, Ръководител, 2019
8 Стойчо Язаджиев, Гравитационни вълни от осцилиращи неутронни звезди в модифицирани теории на гравитацията, Ръководител, , Номер на договора:DCOST 01/6 2018
Научно ръководство
1 Стойчо Язаджиев, Ограничения върху теории на гравитацията в силен режим чрез анализ на компактни астрофизични обекти, дисертация д-р:Виктор Данчев 2023
2 Стойчо Язаджиев, Структура и астрофизика на самогравитиращи обекти в мулти-скаларни теории, дисертация д-р:Радостина Желева 2023
3 Стойчо Язаджиев, Числено изследване на компактни самогравитиращи обекти и тяхната динамика в гравитационни теории, дисертация д-р:Димитър Попчев 2019
4 Стойчо Язаджиев, Структура и свойства на статични пространствено-времеви многообразия с особени повърхнини, дисертация д-р:Боян Лазов 2018
5 Стойчо Язаджиев, Сенки на самогравитиращи компактни обекти, дисертация д-р:Васил Тинчев 2016
6 Стойчо Язаджиев, Числено моделиране на структурата и свойствата на компактни обекти в астрофизиката, дисертация д-р:Калин Стайков 2016
7 Стойчо Язаджиев, Black Hole Solutions to the Higher Dimensional Einstein-Maxwell Equations, ФзФ, СУ дисертация д-р:Петя Недкова 2012
8 Стойчо Язаджиев, Numerical study of self-gravitating objects with a scalar field - structure, quasinormal modes and stability, ФзФ, СУ дисертация д-р:Даниела Донева 2012
9 Стойчо Язаджиев, Гравитационни лещи, ФзФ, СУ дисертация д-р:Галин Гюлчев 2010
10 Стойчо Язаджиев, Заредени черни дупки в Скаларно-тензорните теории на гравитацията с нелинеен лагранжиан на електромагнитното поле, ФзФ, СУ дисертация д-р:Иван Стефанов 2009
Статия в научно списание
1 Daniela D. Doneva, Llibert Aresté Saló, Stoytcho Yazadjiev, 3 + 1 nonlinear evolution of Ricci-coupled scalar-Gauss-Bonnet gravity, Physical Review D, 2024, Ref, Web of Science Quartile: Q1 (2024), SCOPUS Quartile: Q1 (2024), International 2024
2 Daniela D. Doneva, Stoytcho Yazadjiev, Black hole no-hair theorem for self-gravitating time-dependent spherically symmetric multiple scalar fields, : Eur.Phys.J.C, 2024, Ref, Web of Science Quartile: Q1 (2024), SCOPUS Quartile: Q1 (2024), International 2024
3 Kalin V. Staykov, Petar Y. Yordanov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Neutron stars in extended scalar-Gauss–Bonnet gravity: the richness of the solution spectrum, European Physical Journal C, 2024, doi:10.1140/epjc/s10052-024-13704-7, Ref, Web of Science, IF (4.2 - 2023), Web of Science Quartile: Q1 (2023), SCOPUS, SJR (1.45 - 2023), SCOPUS Quartile: Q1 (2023), International, PhD 2024
4 Valentin Deliyski, Galin Gyulchev, Petya Nedkova, Stoytcho Yazadjiev, Observing naked singularities by the present and next-generation Event Horizon Telescope, Physical Review D, 2024, ISSN (print):1550-7998, ISSN (online):2470-0029, doi: https://doi.org/10.48550/arXiv.2401.14092 2024
5 Raimon Luna, Daniela D. Doneva, José A. Font, Jr-Hua Lien, Stoytcho Yazadjiev, Quasinormal modes in modified gravity using physics-informed neural networks, Physical Review D, 2024, Ref, Web of Science Quartile: Q1 (2024), SCOPUS Quartile: Q1 (2024), International 2024
6 Galin N. Gyulchev, Ayush Roy, Lucas G. Collodel, Petya G. Nedkova, Stoytcho S. Yazadjiev, Daniela D. Doneva, Shadows of rotating hairy Kerr black holes coupled to time periodic scalar fields with non-flat target space, Phys.Rev.D 109, 10, 104051, 2024, doi:https://doi.org/10.48550/arXiv.2402.08469, Ref, Web of Science, International, MSc 2024
7 Eugeny Babichev, Christos Charmousis, Daniela D. Doneva, Galin N. Gyulchev, Stoytcho S. Yazadjiev, Testing disformal non-circular deformation of Kerr black holes with LISA, Journal of Cosmology and Astroparticle Physics, vol:06, issue:065, 2024, pages:20-0, doi: https://doi.org/10.48550/arXiv.2403.16192, Ref, Web of Science, IF (2.739 - 2023), Web of Science Quartile: Q2 (2024), SCOPUS, SJR (0.93 - 2023), SCOPUS Quartile: Q2 (2024), International 2024
8 Petar Y. Yordanov, Kalin V. Staykov, Stoytcho S. Yazadjiev, Daniela D. Doneva, The power of binary pulsars in testing Gauss-Bonnet gravity, Astronomy and Astrophysics, 2024, doi:10.1051/0004-6361/202449679, Ref, Web of Science, IF (5.4 - 2023), Web of Science Quartile: Q1 (203), SCOPUS, SJR (1.9 - 2023), SCOPUS Quartile: Q1 (2023), International, PhD 2024
9 Kalin V. Staykov, Daniela D. Doneva, Lavinia Heisenberg, Nikolaos Stergioulas, Stoytcho Yazadjiev, Differentially rotating scalarized neutron stars with realistic postmerger profiles, Physical Review D, 2023, Ref, Web of Science Quartile: Q1 (2023), SCOPUS Quartile: Q1 (2023), International 2023
10 Sebastian Bahamonde, Daniela D. Doneva, Ludovic Ducobu, Christian Pfeifer, Stoytcho Yazadjiev, Distinctive features of hairy black holes in teleparallel Gauss-Bonnet gravity, Physical Review D, 2023, Ref, Web of Science Quartile: Q1 (2023), SCOPUS Quartile: Q1 (2023), International 2023
11 Hao-Jui Kuan, Alan Tsz-Lok Lam, Daniela D. Doneva, Stoytcho Yazadjiev, Masaru Shibata, Dynamical scalarization during neutron star mergers in scalar-Gauss-Bonnet theory, Physical Review D, 2023, Ref, Web of Science Quartile: Q1 (2023), SCOPUS Quartile: Q1 (2023), International 2023
12 Valentin Deliyski, Galin Gyulchev, Petya Nedkova, Stoytcho Yazadjiev, Polarized image of equatorial emission in horizonless spacetimes: naked singularities, PHYSICAL REVIEW D, vol:108, issue:104049, 2023, ISSN (print):1539-3755, ISSN (online):1550-2376, doi:https://doi.org/10.1103/PhysRevD.108.104049, Ref, Web of Science, IF (4.973 - 2022), Web of Science Quartile: Q1 (2023), SCOPUS, SJR (1.64 - 2022), SCOPUS Quartile: Q1 (2023), PhD 2023
13 Sebastian Bahamonde, Daniela D. Doneva, Ludovic Ducobu, Christian Pfeifer, Stoytcho Yazadjiev, Spontaneous scalarization of black holes in Gauss-Bonnet teleparallel gravity, Physical Review D, 2023, Ref, IF (5.04 - ), Web of Science Quartile: Q1 (2023), SCOPUS Quartile: Q1 (2023), International 2023
14 Daniela D. Doneva, Llibert Aresté Saló, Katy Clough, Pau Figueras, Stoytcho Yazadjiev, Testing the limits of scalar-Gauss-Bonnet gravity through nonlinear evolutions of spin-induced scalarization, Physical Review D, 2023, Ref, Web of Science Quartile: Q1 (2023), SCOPUS Quartile: Q1 (2023), International 2023
15 Kalin V. Staykov, Jose Luis Blázquez-Salcedo, Daniela D. Doneva, Jutta Kunz, Petya Nedkova, Stoytcho S. Yazadjiev, Axial perturbations of hairy Gauss-Bonnet black holes with massive self-interacting scalar field, Physical Review D, vol:105, issue:4, 2022, pages:44040-0, doi:10.1103/PhysRevD.105.044040, Ref, Web of Science, IF (5.296 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS, SJR (1.89 - 2020), SCOPUS Quartile: Q1 (2020), International 2022
16 Daniela Doneva, Stoytcho Yazadjiev, Beyond the spontaneous scalarization: New fully nonlinear mechanism for the formation of scalarized black holes and its dynamical development , Physical Review D, 2022, International 2022
17 Danchev V, Daniela Doneva, Stoytcho Yazadjiev, Constraining scalarization in scalar-Gauss-Bonnet gravity through binary pulsars , Physical Review D, 2022 2022
18 Daniela Doneva, Vano-Vinuales A., Stoytcho Yazadjiev, Dynamical descalarization with a jump during a black hole merger , Physical Review D, 2022, International 2022
19 Collodel L., Daniela Doneva, Stoytcho Yazadjiev, Equatorial extreme-mass-ratio inspirals in Kerr black holes with scalar hair spacetimes , Physical Review D, 2022, International 2022
20 Kuan, Hao-Jui, Suvorov A., Daniela Doneva, Stoytcho Yazadjiev, Gravitational Waves from Accretion-Induced Descalarization in Massive Scalar-Tensor Theory , Physical Review Letters, 2022, International 2022
21 Arun, Belgacem, Stoytcho Yazadjiev, New horizons for fundamental physics with LISA , Living Reviews in Relativity, vol:25, issue:1, 2022, International 2022
22 Valentin Deliyski, Galin Gyulchev, Petya Nedkova, Stoytcho Yazadjiev, Observational features of thin accretion disks around traversable wormholes, Journal of Physics: Conference Series, 2022, Ref, Web of Science, PhD 2022
23 Valentin Deliyski, Galin Gyulchev, Petya Nedkova, Stoytcho Yazadjiev, Polarized image of equatorial emission in horizonless spacetimes: Traversable wormholes, Physical Review D, 2022, Ref, Web of Science, PhD 2022
24 Valentin Deliyski, Galin Gyulchev, Petya Nedkova, Stoytcho Yazadjiev, Polarized image of equatorial emission in horizonless spacetimes: Traversable wormholes, Physical Review D, vol:106, issue:10, 2022, ISSN (print):0031-899X, ISSN (online):1536-6065, doi:https://doi.org/10.48550/arXiv.2206.09455, Ref, IF, IF (4.973 - 2022), Web of Science Quartile: Q1 (2022), PhD 2022
25 Blázquez-Salcedo, J.L., Daniela Doneva, Kunz J., Stoytcho Yazadjiev, Radial perturbations of scalar-Gauss-Bonnet black holes beyond spontaneous scalarization , Physical Review D, 2022, International 2022
26 Daniela Doneva, Collodel L, Stoytcho Yazadjiev, Spontaneous nonlinear scalarization of Kerr black holes , Physical Review D, 2022 2022
27 Lucas Collodel, Daniela Doneva, Stoytcho Yazadjiev, Circular Orbit Structure and Thin Accretion Disks around Kerr Black Holes with Scalar Hair, Astrophysical Journal, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
28 Stoytcho Yazadjiev, Classification of static asymptotically flat spacetimes with a photon sphere in Einstein-multiple-scalar field theory, Physical Review D, 2021, Ref, Web of Science Quartile: Q1 (2021) 2021
29 Hao-Jui Kuan, Daniela Doneva, Stoytcho Yazadjiev, Dynamical Formation of Scalarized Black Holes and Neutron Stars through Stellar Core Collapse, Physical Review Letters, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
30 Daniela Doneva, Stoytcho Yazadjiev, Dynamics of the nonrotating and rotating black hole scalarization , Physical Review D, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
31 Galin Gyulchev, Petya Nedkova, Tsvetan Vetsov, Stoytcho Yazadjiev, Image of the thin accretion disk around compact objects in the Einstein-Gauss-Bonnet gravity, Eur. Phys. J. C , vol:81, issue:10, 2021, doi:https://doi.org/10.1140/epjc/s10052-021-09624-5, Ref, Web of Science, IF (4.59 - 2020), Web of Science Quartile: Q1 (2021), SCOPUS, SJR (1.94 - 2020), SCOPUS Quartile: Q1 (2021) 2021
32 Hao-Jui Kuan, Jasbir Singh, Daniela Doneva, Stoytcho Yazadjiev, Kostas Kokkotas, Nonlinear evolution and nonuniqueness of scalarized neutron stars, Physical Review D, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
33 Riccardo Falcone, Daniela Doneva, Kostas Kokkotas, Stoytcho Yazadjiev, Nonlinear stability of soliton solutions for massive tensor-multiscalar theories, Physical Review D, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
34 Efthimia Deligianni, Jutta Kunz, Petya Nedkova, Stoytcho Yazadjiev, Radostina Zheleva, Quasiperiodic oscillations around rotating traversable wormholes, Physical Review D, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
35 Efthimia Deligianni, Burkhard Kleihaus, Jutta Kunz, Petya Nedkova, Stoytcho Yazadjiev, Quasiperiodic oscillations in rotating Ellis wormhole spacetimes, Physical Review D, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
36 Daniela Doneva, Stoytcho Yazadjiev, Relativistic stars in 4D Einstein-Gauss-Bonnet gravity, Journal of Cosmology and Astroparticle Physics, 2021, Ref, Web of Science Quartile: Q2 (2021), International 2021
37 Daniela Doneva, Stoytcho Yazadjiev, Spontaneously scalarized black holes in dynamical Chern-Simons gravity: dynamics and equilibrium solutions, Physical Review D, 2021, Ref, Web of Science Quartile: Q1 (2021), International 2021
38 Matheus C. Teodoro, Lucas G. Collodel, Daniela Doneva, Jutta Kunz, Petya Nedkova, Stoytcho Yazadjiev, Thick toroidal configurations around scalarized Kerr black holes, Phys. Rev. D 104 (2021) 12, 124047, 2021, doi:https://doi.org/10.1103/PhysRevD.104.124047, Ref, IF, IF (5.296 - 2020), Web of Science Quartile: Q1 (2021), International 2021
39 Jose Luis Blázquez-Salcedo, Daniela Doneva, Sarah Kahlen, Jutta Kunz, Petya Nedkova, Stoytcho Yazadjiev, Axial perturbations of the scalarized Einstein-Gauss-Bonnet black holes, Phys. Rev. D 101, 104006 (2020), 2020, doi:10.1103/PhysRevD.101.104006, Ref, IF, IF (4.689 - ), Web of Science Quartile: Q1 (2020), SCOPUS, SJR ( - 2020), SCOPUS Quartile: Q1 (2020), International 2020
40 Daniela Doneva, Lucas Collodel, Christian Kruger, Stoytcho Yazadjiev, Black hole scalarization induced by the spin -- 2+1 time evolution, Phys.Rev.D 102 (2020) 10, 104027, 2020, doi: 10.1103/PhysRevD.102.084055, Ref, IF, IF (4.689 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS Quartile: Q1 (2020), International 2020
41 Daniela D. Doneva, Kalin V. Staykov, Stoytcho S. Yazadjiev, Radostina Z. Zheleva, Multiscalar Gauss-Bonnet gravity: Hairy black holes and scalarization, Physical Review D, vol:102, issue:6, 2020, pages:64042-0, doi:10.1103/PhysRevD.102.064042, Ref, Web of Science, IF (4.833 - 2019), Web of Science Quartile: Q1 (2020), SCOPUS, SJR (1.66 - 2019), SCOPUS Quartile: Q1 (2020), International, PhD 2020
42 Daniela Doneva, Stoytcho Yazadjiev, No-hair theorems for non-canonical self-gravitating static multiple scalar fields, Phys. Rev. D 102, 084055 (2020), 2020, doi: 10.1103/PhysRevD.102.084055, Ref, IF, IF (4.689 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS Quartile: Q1 (2020), International 2020
43 Daniela Doneva, Stoytcho Yazadjiev, Non-topological spontaneously scalarized neutron stars in tensor-multi-scalar theories of gravity, Phys. Rev. D 101, 104010 (2020), 2020, doi: 10.1103/PhysRevD.101.104010, Ref, IF, IF (4.689 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS, SJR ( - 2020), SCOPUS Quartile: Q1 (2020), International 2020
44 Galin Gyulchev, Jutta Kunz, Petya Nedkova, Tsvetan Vetsov, Stoytcho Yazadjiev, Observational signatures of strongly naked singularities: image of the thin accretion disk, The European Physical Journal C, vol:80, 2020, doi:https://doi.org/10.1140/epjc/s10052-020-08575-7, Ref, Web of Science, IF (4.843 - 2018), Web of Science Quartile: Q1 (2020), SCOPUS, SJR (1.76 - 2019), SCOPUS Quartile: Q1 (2020), International 2020
45 Jose Luis Blázquez-Salcedo, Daniela Doneva, Sarah Kalhen, Jutta Kunz, Petya Nedkova, Stoytcho Yazadjiev, Polar quasinormal modes of the scalarized Einstein-Gauss-Bonnet black holes, Phys. Rev. D 102, 024086 (2020), 2020, doi:10.1103/PhysRevD.102.024086, Ref, IF, IF (4.689 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS Quartile: Q1 (2020), International 2020
46 Lucas Collodel, Daniela Doneva, Stoytcho Yazadjiev, Rotating tensor-multiscalar black holes with two scalars, Phys. Rev. D 102, 084032 (2020), 2020, doi: 10.1103/PhysRevD.102.084032, Ref, IF, IF (4.689 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS Quartile: Q1 (2020), International 2020
47 Lucas Collodel, Daniela Doneva, Stoytcho Yazadjiev, Rotating tensor-multi-scalar solitons, Phys. Rev. D 101, 044021 (2020), 2020, doi:10.1103/PhysRevD.101.044021, Ref, IF, IF (4.689 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS Quartile: Q1 (2020), International 2020
48 Victor Danchev, Daniela Doneva, Stoytcho Yazadjiev, Slowly rotating topological neutron stars -- universal relations and epicyclic frequencies, The European Physical Journal C volume 80, Article number: 878 (2020) , 2020, doi: 10.1140/epjc/s10052-020-08473-y, Ref, IF, IF (4.689 - ), Web of Science Quartile: Q1 (2020), SCOPUS Quartile: Q1 (2020), International 2020
49 Daniela Doneva, Lucas Collodel, Christian Kruger, Stoytcho Yazadjiev, Spin-induced scalarization of Kerr black holes with a massive scalar field, European Physical Journal C, vol:80, issue:1205, 2020, Ref, Web of Science, Web of Science Quartile: Q1 (2020), International 2020
50 Daniela Doneva, Stoytcho Yazadjiev, Kostas Kokkotas, Stability of topological neutron stars, Phys. Rev. D 102, 044043 (2020), 2020, doi:10.1103/PhysRevD.102.044043, Ref, IF, IF (4.689 - 2020), Web of Science Quartile: Q1 (2020), SCOPUS Quartile: Q1 (2020), International 2020
51 Daniela Doneva, Stoytcho Yazadjiev, Topological neutron stars in tensor-multi-scalar theories of gravity, Phys. Rev. D 101, 064072 (2020), 2020, doi:https://journals.aps.org/prd/abstract/10.1103/PhysRevD.101.064072, Ref, IF, IF (4.3689 - 2020), Web of Science Quartile: Q1 (2020), International 2020
52 Daniela D. Doneva, Kalin V. Staykov, Stoytcho S. Yazadjiev, Gauss-Bonnet black holes with a massive scalar field, PHYSICAL REVIEW D, vol:99, issue:10, 2019, pages:104045-0, doi:10.1103/PhysRevD.99.104045, Ref, Web of Science, IF (4.833 - 2019), Web of Science Quartile: Q1 (2019), SCOPUS, SJR (1.972 - 2018), SCOPUS Quartile: Q1 (2019), International 2019
53 Dimitar Popchev, Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Moment of inertia–mass universal relations for neutron stars in scalar-tensor theory with self-interacting massive scalar field, The European Physical Journal C , vol:79, issue:2, 2019, pages:178-0, doi:https://doi.org/10.1140/epjc/s10052-019-6691-x, Ref, Web of Science, IF (4.389 - 2019), Web of Science Quartile: Q1 (2019), SCOPUS, SJR (1.703 - 2018), SCOPUS Quartile: Q1 (2019), PhD 2019
54 Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Orbital and epicyclic frequencies in massive scalar-tensor theory with self-interaction, Astrophysics and Space Science, vol:364, issue:10, 2019, pages:178-0, ISSN (print):0004-640X, ISSN (online):1572-946X, doi:https://doi.org/10.1007/s10509-019-3666-1, Ref, Web of Science, IF (1.62 - 2019), Web of Science Quartile: Q3 (2019), SCOPUS, SJR (0.468 - 2018), SCOPUS Quartile: Q3 (2019) 2019
55 Jose Luis Blázquez-Salcedo, Zahra Altaha Motahar, Daniela D. Doneva, Fech Scen Khoo, Jutta Kunz, Sindy Mojica, Kalin V. Staykov, Stoytcho S. Yazadjiev, Quasinormal modes of compact objects in alternative theories of gravity, The European Physical Journal Plus, vol:134, issue:1, 2019, pages:46-0, ISSN (online):2190-5444, doi:https://doi.org/10.1140/epjp/i2019-12392-9, Ref, Web of Science, IF (3.228 - 2019), Web of Science Quartile: Q2 (2019), SCOPUS, SJR (0.535 - 2018), SCOPUS Quartile: Q2 (2019), International 2019
56 Daniela Doneva, Stella Kiorpelidi, Petya Nedkova, Eleftherios Papantonopoulos, Stoytcho Yazadjiev, Charged Gauss-Bonnet black holes with curvature induced scalarization in the extended scalar-tensor theories , Phys. Rev. D, issue:98, 104056 , 2018, doi:10.1103/PhysRevD.98.104056 , Ref, Web of Science, IF ( - 2017), SCOPUS, SJR ( - 2017), International 2018
57 Jose Luis Blázquez-Salcedo, Daniela D. Doneva, Jutta Kunz, Kalin V. Staykov, Stoytcho S. Yazadjiev, Axial quasi-normal modes of neutron stars in R^2 gravity, PHYSICAL REVIEW D, vol:98, issue:10, 2018, pages:104047-0, doi:10.1103/PhysRevD.98.104047, Ref, Web of Science, IF (4.368 - 2018), Web of Science Quartile: Q1 (2018), SCOPUS, SJR (1.703 - 2018), SCOPUS Quartile: Q1 (2018), International 2018
58 Jai Grover, Jutta Kunz, Petya Nedkova, Alexander Wittig, Stoytcho Yazadjiev, Multiple shadows from distorted static black holes, Phys.Rev. D, issue:97, 084024 , 2018, doi: 10.1103/PhysRevD.97.084024, Ref, Web of Science, IF ( - 2017), SCOPUS, SJR ( - 2017), International 2018
59 S. Yazadjiev, D. Doneva, K. Kokkotas, Tidal Love numbers of neutron stars in f(R) theories, European Journal of Physics C, том:78, брой:10, 2018, в сътрудничество с чуждестранни учени 2018
60 B. Lazov, P. Nedkova, S. Yazadjiev, Uniqueness theorem for static phantom wormholes in Einstein-Maxwell-dilaton theory , Phys. Lett. B, 2018, Ref, IF, IF (4.8 - ) 2018
61 J. Kunz, P. Nedkova, S. Yazadjiev, Magnetized Black Holes in an External Gravitational Field. , Phys. Rev. D, том:96, 2017, стр.:24017-0, Ref, IF, IF (4.568 - 2016), в сътрудничество с чуждестранни учени 2017
62 S. Yazadjiev, D. Doneva, K. Kokkotas, Oscillation modes of rapidly rotating neutron stars in scalar-tensor theories of gravity. , Phys. Rev. D, том:96, 2017, стр.:64002-0, Ref, IF, IF (4.568 - 2016), в сътрудничество с чуждестранни учени 2017
63 S. Yazadjiev, Uniqueness theorem for static wormholes in Einstein-phantom scalar field theory, Phys. Rev. D, том:96, 2017, стр.:44045-0, Ref, IF, IF (4.568 - 2016) 2017
64 Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Accretion disks around neutron and strange stars in R+aR(2) gravity , JCAP, vol:1608, 2016, pages:61-61, Ref, Web of Science, IF (4.734 - 2016), Web of Science Quartile: Q2 (2016), SCOPUS, SJR (0.999 - 2016), SCOPUS Quartile: Q2 (2016), International, PhD 2016
65 Stoytcho Yazadjiev, Boian Lazov, Classification of the static and asymptotically flat Einstein-Maxwell-dilaton spacetimes with a photon sphere , Phys.Rev. D, том:93, 2016, стр.:83002-83002, Ref, Web of Science, PhD 2016
66 Kalin V. Staykov, K. Yavuz Ekşi, Stoytcho S. Yazadjiev, M. Metehan Türkoğlu, A. Savaş Arapoğlu, Moment of inertia of neutron star crust in alternative and modified theories of gravity , Phys.Rev. D, vol:94, issue:2, 2016, pages:24056-0, doi:10.1103/PhysRevD.94.024056, Ref, Web of Science, IF (4.557 - 2016), Web of Science Quartile: Q1 (2016), SCOPUS, SJR (2115 - 2016), SCOPUS Quartile: Q1 (2016), International, PhD 2016
67 Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Moment-of-inertia–compactness universal relations in scalar-tensor theories and R^2 gravity, Phys.Rev. D, vol:93, issue:8, 2016, pages:84010-0, doi:10.1103/PhysRevD.93.084010, Ref, Web of Science, IF (4.557 - 2016), Web of Science Quartile: Q1 (2016), SCOPUS, SJR (2.115 - 2016), SCOPUS Quartile: Q1 (2016), International, PhD 2016
68 Daniela D. Doneva, Stoytcho S. Yazadjiev, Rapidly rotating neutron stars with a massive scalar field—structure and universal relations, JCAP, том:1611, 2016, стр.:19-19, Ref, IF, IF (4.734 - 2016), в сътрудничество с чуждестранни учени 2016
69 Stoytcho S. Yazadjiev, Daniela D. Doneva, Dimitar Popchev, Slowly rotating neutron stars in scalar-tensor theories with a massive scalar field , Phys.Rev. D, том:93, 2016, стр.:84038-84038, Ref, Web of Science, в сътрудничество с чуждестранни учени, PhD 2016
70 Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Kostas D. Kokkotas, Gravitational wave asteroseismology of neutron and strange stars in R$^2$ gravity, Phys.Rev. D, vol:92, issue:4, 2015, pages:43009-0, doi:10.1103/PhysRevD.92.043009, Ref, Web of Science, IF (4.506 - 2015), Web of Science Quartile: Q1 (2015), SCOPUS, SJR (2.236 - 2015), SCOPUS Quartile: Q1 (2015), International, PhD 2015
71 Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Orbital and epicyclic frequencies around neutron and strange stars in $R^2$ gravity, Eur.Phys.J. C, vol:75, issue:12, 2015, pages:607-0, doi:10.1140/epjc/s10052-015-3789-7, Ref, Web of Science, IF (4.912 - 2015), Web of Science Quartile: Q1 (2015), SCOPUS, SJR (1.139 - 2015), SCOPUS Quartile: Q1 (2015), PhD 2015
72 Stoytcho S. Yazadjiev, Daniela D. Doneva, Kostas D. Kokkotas, Rapidly rotating neutron stars in R-squared gravity, Phys.Rev. D, том:91, 2015, стр.:84018-0, doi:10.1103/PhysRevD.91.084018, Ref, Web of Science, в сътрудничество с чуждестранни учени 2015
73 Burkhard Kleihaus, Jutta Kunz, Stoytcho Yazadjiev, Scalarized Hairy Black Holes, Phys.Lett. B, том:744, 2015, стр.:406-412, doi:10.1016/j.physletb.2015.04.014, Ref, Web of Science, в сътрудничество с чуждестранни учени 2015
74 Daniela D. Doneva, Stoytcho S. Yazadjiev, Kostas D. Kokkotas, The I-Q relations for rapidly rotating neutron stars in $f(R)$ gravity, Phys.Rev. D, том:92, 2015, стр.:64015-0, doi:10.1103/PhysRevD.92.064015, Ref, Web of Science, в сътрудничество с чуждестранни учени 2015
75 Stoytcho Yazadjiev, Boian Lazov, Uniqueness of the static Einstein–Maxwell spacetimes with a photon sphere, Class.Quant.Grav., том:32, 2015, стр.:165021-0, doi:10.1088/0264-9381/32/16/165021, Ref, Web of Science, PhD 2015
76 Stoytcho S. Yazadjiev, Uniqueness of the static spacetimes with a photon sphere in Einstein-scalar field theory, Phys.Rev. D, том:91, 2015, стр.:123013-0, doi:10.1103/PhysRevD.91.123013, Ref, Web of Science 2015
77 Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas, Kostas D. Kokkotas, Breakdown of I-Love-Q universality in rapidly rotating relativistic stars, Astrophys.J. Lett., том:781, 2014, стр.:6-0, doi:10.1088/2041-8205/781/1/L6, Ref, Web of Science, в сътрудничество с чуждестранни учени 2014
78 Stoytcho S. Yazadjiev, Daniela D. Doneva, Kostas D. Kokkotas, Kalin V. Staykov, Non-perturbative and self-consistent models of neutron stars in R-squared gravity, JCAP, vol:1406, issue:6, 2014, pages:3-0, doi:10.1088/1475-7516/2014/06/003, Ref, Web of Science, IF (5.81 - 2014), Web of Science Quartile: Q2 (2014), SCOPUS, SJR (1.505 - 2014), SCOPUS Quartile: Q2 (2014), International, MSc 2014
79 Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas, Kostas D. Kokkotas, Tilemachos M. Athanasiadis, Orbital and epicyclic frequencies around rapidly rotating compact stars in scalar-tensor theories of gravity, Phys.Rev. D, том:90, 2014, стр.:44004-0, doi:10.1103/PhysRevD.90.044004, Ref, Web of Science, в сътрудничество с чуждестранни учени 2014
80 Vassil K. Tinchev, Stoytcho S. Yazadjiev, Possible imprints of cosmic strings in the shadows of galactic black holes, Int.J.Mod.Phys. D, том:23, 2014, стр.:1450060-0, doi:10.1142/S0218271814500606, Ref, Web of Science, PhD 2014
81 Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Kostas D. Kokkotas, Slowly rotating neutron and strange stars in $R^2$ gravity, JCAP, vol:1410, issue:10, 2014, pages:6-0, doi:10.1088/1475-7516/2014/10/006, Ref, Web of Science, IF (5.81 - 2014), Web of Science Quartile: Q2 (2014), SCOPUS, SJR (1.505 - 2014), SCOPUS Quartile: Q2 (2014), International, MSc 2014
82 Daniela D. Doneva, Stoytcho S. Yazadjiev, Kalin V. Staykov, Kostas D. Kokkotas, Universal I-Q relations for rapidly rotating neutron and strange stars in scalar-tensor theories, Phys.Rev. D, vol:90, issue:10, 2014, pages:104021-0, doi:10.1103/PhysRevD.90.104021, Ref, Web of Science, IF (5.06 - 2014), Web of Science Quartile: Q1 (2014), SCOPUS, SJR (2.414 - 2014), SCOPUS Quartile: Q1 (2014), International, MSc 2014
83 Stoytcho S. Yazadjiev, Area-angular momentum-charge inequality for stable marginally outer trapped surfaces in 4D Einstein-Maxwell-dilaton theory, Phys. Rev. D, том:87, 2013, стр.:24016-0, doi:10.1103/PhysRevD.87.024016, Ref, Web of Science 2013
84 Stoytcho S. Yazadjiev, Electrically charged dilaton black holes in an external magnetic field, Phys.Rev. D, том:87, 2013, стр.:84068-0, doi:10.1103/PhysRevD.87.084068, Ref, Web of Science 2013
85 Stoytcho S. Yazadjiev, Horizon area-angular momentum-charge-magnetic fluxes inequalities in 5D Einstein-Maxwell-dilaton gravity, Class.Quant.Grav., том:30, 2013, стр.:115010-0, doi:10.1088/0264-9381/30/11/115010, Ref, Web of Science 2013
86 P. Nedkova, S. Yazadjiev, New Magnetized Squashed Black Holes -- Thermodynamics and Hawking Radiation, Eur. Phys. J. C73 , 2377 , 2013, doi:DOI: 10.1140/epjc/s10052-013-2377-y, Ref, Web of Science 2013
87 Petya G. Nedkova, Stoytcho S. Yazadjiev, New magnetized squashed black holes—thermodynamics and Hawking radiation, European Physical Journal C, том:73, 2013, стр.:2377-0, doi:10.1140/epjc/s10052-013-2377-y, Ref, Web of Science 2013
88 Ivan Zh. Stefanov, Galin G. Gyulchev, Stoytcho S. Yazadjiev, Quasiperiodic oscillations and Tomimatsu-Sato δ=2 space-time, Phys.Rev. D, том:87, 2013, стр.:83005-0, doi:10.1103/PhysRevD.87.083005, Ref, Web of Science 2013
89 Daniela D. Doneva, Stoytcho S. Yazadjiev, Nikolaos Stergioulas, Kostas D. Kokkotas, Rapidly rotating neutron stars in scalar-tensor theories of gravity, Phys.Rev. D, том:88, 2013, стр.:84060-0, doi:10.1103/PhysRevD.88.084060, Ref, Web of Science, в сътрудничество с чуждестранни учени 2013
90 Petya G. Nedkova, Vassil K. Tinchev, Stoytcho S. Yazadjiev, Shadow of a rotating traversable wormhole, Phys.Rev. D, том:88, 2013, стр.:124019-0, doi:10.1103/PhysRevD.88.124019, Ref, Web of Science, в сътрудничество с чуждестранни учени, PhD 2013
91 P. Nedkova, V. Tinchev, S. Yazadjiev, Shadow of a rotating traversable wormhole, Physical Review D88 124019 , 2013, doi:DOI: 10.1103/PhysRevD.88.124019 , Ref, Web of Science 2013
92 Stoytcho S. Yazadjiev, Thermodynamics of rotating charged dilaton black holes in an external magnetic field, Phys.Lett. B, том:723, 2013, стр.:411-416, doi:10.1016/j.physletb.2013.05.028, Ref, Web of Science 2013
93 Stoytcho S. Yazadjiev, Thermodynamics of rotating charged dilaton black holes in an external magnetic field, Phys.Lett. B, том:723, 2013, стр.:411-416, doi:10.1016/j.physletb.2013.05.028, Ref, Web of Science 2013
94 Peter I. Slavov, Stoytcho S. Yazadjiev, Hawking radiation of asymptotically non-flat dyonic black holes in Einstein-Maxwell-dilaton gravity, Phys. Rev. D, том:86, 2012, стр.:84042-0, doi:10.1103/PhysRevD.86.084042, Ref, Web of Science 2012
95 S. Yazadjiev, Kaluza-Klein rotating multi-black hole configurations with electromagnetic field in Einstein-Maxwell-dilaton gravity, Phys. Rev. D, том:86, 2012, стр.:107504-0, doi:10.1103/PhysRevD.86.107504, Ref, Web of Science 2012
96 P. Nedkova, S. Yazadjiev, Magnetized Black Hole on Taub-Nut Instanton, Physical Review D85 064021 , 2012, doi:DOI: 10.1103/PhysRevD.85.064021, Ref, Web of Science 2012
97 Daniela D. Doneva, Stoytcho S. Yazadjiev, Non-radial oscillations of anisotropic neutron stars in the Cowling approximation, Phys. Rev. D, том:85, 2012, стр.:124023-0, doi:10.1103/PhysRevD.85.124023, Ref, Web of Science, PhD 2012
98 Stoytcho S. Yazadjiev, Daniela D. Doneva, Possible dark energy imprints in gravitational wave spectrum of mixed neutron-dark-energy stars, JCAP, том:037, 2012, стр.:1203-0, doi:10.1088/1475-7516/2012/03/037 , Ref, Web of Science, PhD 2012
99 Stoytcho Yazadjiev, Relativistic models of magnetars: Nonperturbative analytical approach, Phys. Rev. D, том:85, 2012, стр.:44030-0, doi:10.1103/PhysRevD.85.044030 2012
100 P. Nedkova, S. Yazadjiev, On the Thermodynamics of 5D Black Holes on ALF Gravitational Instantons , Physical Review D 84 124040 , 2011, doi:10.1103/PhysRevD.84.124040, Ref, Web of Science 2011
101 Petya G. Nedkova, Stoytcho S. Yazadjiev, On the Thermodynamics of 5D Black Holes on ALF Gravitational Instantons, Phys. Rev. D, том:84, 2011, стр.:124040-0, doi:10.1103/PhysRevD.84.124040, Ref, Web of Science, PhD 2011
102 Galin N. Gyulchev, Stoytcho S. Yazadjiev, Analytical Kerr-Sen Dilaton-Axion Black Hole Lensing in the Weak Deflection Limit, Phys. Rev., том:D, 2010, стр.:23005-0, doi:10.1103/PhysRevD.81.023005, Ref, Web of Science 2010
103 Ivan Zh. Stefanov, Stoytcho S. Yazadjiev, Galin N. Gyulchev, Connection between black-hole quasinormal modes and lensing in the strong deflection limit, Phys. Rev. Lett., том:104, 2010, стр.:251103-0, doi:10.1103/PhysRevLett.104.251103, Ref, Web of Science 2010
104 P. Nedkova, S. Yazadjiev, Rotating black ring on Kaluza-Klein bubbles , Physical Review D 82 044010 , 2010, doi:10.1103/PhysRevD.82.044010 , Ref, Web of Science 2010
105 Stoytcho S. Yazadjiev, Petia G. Nedkova, Sequences of dipole black rings and Kaluza-Klein bubbles, JHEP 1001, 048 , 2010, doi:10.1007/JHEP01(2010)048 , Ref, Web of Science 2010
106 Galin N. Gyulchev, Stoytcho S. Yazadjiev, Gravitational Lensing by Rotating Naked Singularities, Physical Review D - Particles, Fields, Gravitation and Cosmology, брой:78, 2008, стр.:83004-0, doi:10.1103/PhysRevD.78.083004, Ref, Web of Science, IF (5.05 - 2008), SCOPUS, SJR (2.92 - 2008) 2008
107 Galin N. Gyulchev, Stoytcho S. Yazadjiev, Kerr-Sen Dilaton-Axion Black Hole Lensing in the Strong Deflection Limit, Physical Review D - Particles, Fields, Gravitation and Cosmology, брой:75, 2007, стр.:23006-0, doi:10.1103/PhysRevD.75.023006, Ref, Web of Science, IF (4.696 - 2007), SCOPUS, SJR (2.593 - 2007) 2007
Статия в поредица
1 Galin Gyulchev, Jutta Kunz, Petya Nedkova, Tsvetan Vetsov, Stoytcho Yazadjiev, Observational signatures of strongly naked singularities: image of the thin accretion disk, The European Physical Journal C, issue:80, 2020, doi:https://doi.org/10.1140/epjc/s10052-020-08575-7, Ref, Web of Science, IF (4.843 - 2018), Web of Science Quartile: Q1 (2020), SCOPUS, SJR (1.76 - 2019), SCOPUS Quartile: Q1 (2020), (https://inspirehep.net/literature/1785665), International 2020
2 Galin Gyulchev, Petya Nedkova, Tsvetan Vetsov, Stoytcho Yazadjiev, Image of the Janis-Newman-Winicour naked singularity with a thin accretion disk, Phys. Rev. D , issue:100, Publisher:American Physical Society, 2019, pages:1-13, doi:https://doi.org/10.1103/PhysRevD.100.024055, Ref, Web of Science, IF (4.368 - 2019), Web of Science Quartile: Q1 (2019), SCOPUS, SJR (1.703 - 2019), SCOPUS Quartile: Q1 (2019) 2019
3 Galin Gyulchev, Petya Nedkova, Vassil Tinchev, Stoytcho Yazadjiev, On the shadow of rotating traversable wormholes, The European Physical Journal C, брой:78, издателство:SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA, 2018, стр.:1-19, ISSN (print):1434-6044, ISSN (online):1434-6052, doi:10.1140/epjc/s10052-018-6012-9, Ref, Web of Science, SCOPUS Quartile: Q1 (PHYSICS, PARTICLES & FIELDS) 2018
4 Tsvetan Vetsov, Galin Gyulchev, Stoytcho Yazadjiev, Shadows of Black Holes in Vector-Tensor Galileons Modified Gravity, Cornell University Libary, 2018 2018
Статия в сборник (на конференция и др.)
1 Galin N. Gyulchev, Lucas G. Collodel, Stoytcho S. Yazadjiev, Daniela D. Doneva, Petya G. Nedkova, Images of a thin accretion disk around Kerr Black Hole with synchronized scalar hair, Journal of Physics: Conference Series, 2025 2025
2 Galin N. Gyulchev, Ayush Roy, Lucas G. Collodel, Petya G. Nedkova, Stoytcho S. Yazadjiev, Daniela D. Doneva, Shadows of Kerr black holes with time dependent multiscalar hair, 17th Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Gravitation, and Relativistic Field Theories (MG17), 2025 2025
3 V. Deliyski, G. Gyulchev, P. Nedkova, S. Yazadjiev, Observational features of thin accretion disks around traversable wormholes, J. Phys.: Conf. Ser., 2022, pages:12002-12008, ISSN (print):1742-6588, ISSN (online):1742-6596, doi:10.1088/1742-6596/2255/1/012002, Ref, Web of Science, IF (0.5 - 2021), Web of Science Quartile: Q4 (2022), SCOPUS, SJR (0.21 - 2021), PhD 2022
4 Kalin V. Staykov, Daniela D. Doneva, Dimitar Popchev, Stoytcho S. Yazadjiev, Compact stars in massive scalar-tensor theory with extended dilaton potential, AIP Conference Proceedings, 2019, pages:40006-0, doi:https://doi.org/10.1063/1.5091166, Ref, IR , SCOPUS, SJR (0.182 - 2018), PhD 2019
5 G.Gyulchev, P. Nedkova, V. Tinchev, S. Yazadjiev, Cusp structure in shadows casted by rotating wormholes , AIP Conf.Proc. 2075 (2019) no.1, 040005, 2019, doi: 10.1063/1.5091165, Ref 2019
6 Kalin V. Staykov, Daniela D. Doneva, Stoytcho S. Yazadjiev, Kostas D. Kokkotas, Neutron and strange stars in R-squared gravity Read More: https://www.worldscientific.com/doi/abs/10.1142/9789813226609_0145, The Fourteenth Marcel Grossmann Meeting On Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories (In 4 Volumes), Publisher:World Scientific, 2017, pages:1557-1562, doi:10.1142/9789813226609_0145 , Ref, IR , SCOPUS, SJR (0.13 - 2020), International 2017
7 Kalin V. Staykov, Stoytcho S. Yazadjiev, Static and slowly rotating neutron stars in $R^2$ gravity, Proceedings of the 3rd Bulgarian National Congress on Physical Sciences, Sofia, Bulgaria, Sep. 29 - Oct. 02, 2016, 2017 2017
8 P. Nedkova, S. Yazadjiev, Charged Black Holes on the Taub-Bolt Instanton and Their Thermodynamics, Proceedings of the 13th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, редактор/и:Thibault Damour, Robert T. Jantzen , Remo Ruffini , издателство:World Scientific, 2015, стр.:1330-1332, doi:10.1142/9789814623995_0163, Ref 2015
9 P. Nedkova, S. Yazadjiev, Rotating black ring on Kaluza-Klein bubbles , Proceedings of the 2nd Conference of the Euro-American Consortium for Promoting the Application of Mathematics in Technical and Natural Sciences, редактор/и:Michail D. Todorov , Christo I. Christov , издателство:AIP Conf. Proc. 1301 , 2010, стр.:347-354, doi:10.1063/1.3526631 , Ref 2010