Black hole shadow to probe modified gravity

被引：31
|
作者：
Stepanian, A. [1 ]
Khlghatyan, Sh. [1 ]
Gurzadyan, V. G. [1 ,2 ]
机构：
[1] Yerevan State Univ, Ctr Cosmol & Astrophys, Alikhanian Natl Lab, Yerevan, Armenia
[2] Sapienza Univ Roma, SIA, Rome, Italy
来源：
EUROPEAN PHYSICAL JOURNAL PLUS | 2021年 / 136卷 / 01期
关键词：
COSMOLOGICAL CONSTANT;
D O I：
10.1140/epjp/s13360-021-01119-2
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the black hole's shadow for Schwarzschild-de Sitter and Kerr-de Sitter metrics with the contribution of the cosmological constant Lambda. Based on the reported parameters of the M87* black hole shadow, we obtain constraints for the Lambda and show the agreement with the cosmological data. It is shown that the coupling of the Lambda -term with the spin parameter reveals peculiarities for the photon spheres and hence for the shadows. Within the parametrized post-Newtonian formalism, the constraint for the corresponding Lambda -determined parameter is obtained.
引用
收藏
页数：7
相关论文
共 50 条
  • [41] The shadow of supertranslated black hole
    Zhu, Qing-Hua
    Han, Yu-Xuan
    Huang, Qing-Guo
    EUROPEAN PHYSICAL JOURNAL C, 2023, 83 (01):
  • [42] Quazinormal modes and greybody factor of black hole surrounded by a quintessence in the S-V-T modified gravity as well as shadow
    Al-Badawi, Ahmad
    PHYSICA SCRIPTA, 2024, 99 (06)
  • [43] Black-hole ringdown as a probe of higher-curvature gravity theories
    Silva, Hector O.
    Ghosh, Abhirup
    Buonanno, Alessandra
    PHYSICAL REVIEW D, 2023, 107 (04)
  • [44] Black hole solutions in modified gravity induced by quantum metric fluctuations
    Yang, Jin-Zhao
    Shahidi, Shahab
    Harko, Tiberiu
    Liang, Shi-Dong
    PHYSICS OF THE DARK UNIVERSE, 2021, 31
  • [45] Minimum length, extra dimensions, modified gravity and black hole remnants
    Maziashvili, Michael
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2013, (03):
  • [46] Neutral Particle Motion around a Schwarzschild Black Hole in Modified Gravity
    Sharif, M.
    Shahzadi, Misbah
    JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2018, 127 (03) : 491 - 502
  • [47] Thermodynamic stability of modified Schwarzschild–AdS black hole in rainbow gravity
    Yong-Wan Kim
    Seung Kook Kim
    Young-Jai Park
    The European Physical Journal C, 2016, 76
  • [48] An infinite class of exact rotating black hole metrics of modified gravity
    Afonso, Victor, I
    Mora-Perez, Gerardo
    Olmo, Gonzalo J.
    Orazi, Emanuele
    Rubiera-Garcia, Diego
    JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS, 2022, (03):
  • [49] Does a black hole rotate in Chern-Simons modified gravity?
    Konno, Kohkichi
    Matsuyama, Toyoki
    Tanda, Satoshi
    PHYSICAL REVIEW D, 2007, 76 (02)
  • [50] Rotating Black Hole in Extended Chern-Simons Modified Gravity
    Konno, Kohkichi
    Matsuyama, Toyoki
    Tanda, Satoshi
    PROGRESS OF THEORETICAL PHYSICS, 2009, 122 (02): : 561 - 568
12345