Document Type : Original Article
Authors
Department of physics-University of Qom
Abstract
The distribution of dark matter and its effect on the space-time around black holes is a subject that has attracted the attention of many researchers. So far, various distributions of dark matter density in galaxies have been predicted. In 2022 Konoplya and Zhidenko obtained the exact solutions of Einstein's equations with the energy-momentum tensor of a galaxy harboring a central black hole characterized by Burkert, Navarro-Frank-White, and Taylor-Silk density distributions. In the present paper, we obtain the electromagnetic properties of the surrounding accretion disk including the energy flux, temperature spectrum, and luminosity in such space-times. We seek a way to find the nature of dark matter through its effect on the motion of particles around the black hole as well as the observational characteristics of the black hole shadow using the comparison of different dark matter distributions.
Keywords
Main Subjects
- K Akiyama, et al., J. 875 (2019) L1.
K Akiyama, et al., Astrophys. J. 875 (2019) L2.
K Akiyama, et al., Astrophys. J. 875 (2019) L3.
K Akiyama, et al., Astrophys. J. 875 (2019) L4.
K Akiyama, et al., Astrophys. J. 875 (2019) L5.
K Akiyama, et al., Astrophys. J. 875 (2019) L6.
K Akiyama, et al., Astrophys. J. Lett. 910 (2021) L13.
- K Akiyama, et al., J. Lett. 930 (2022) L12.
K Akiyama, et al., Astrophys. J. Lett. 930 (2022) L13.
K Akiyama, et al., Astrophys. J. Lett. 930 (2022) L14.
K Akiyama, et al., Astrophys. J. Lett. 930 (2022) L15.
K Akiyama, et al., Astrophys. J. Lett. 930 (2022) L16.
K Akiyama, et al., Astrophys. J. Lett. 930 (2022) L17.
- B P Abbott, et al., Rev. Lett. 116 (2016) 061102.
- J Kormendy and L C Ho, Astrophys. 51 (2013) 511.
- E Chaisson and S McMillan, “Astronomy Today”, 9th edition. Boston: Pearson (2017).
- A Einstein, Math. 40, 4 (1939) 922.
- A Geralico, et al., International Journal of Modern Physics: Conference Series, World Scientific Publishing Company. (2012).
- F Rahaman, et al., Rev. B 694 (2010) 10.
- L Sadeghian, et al., Rev. D 88 (2013), 063522.
- H Zhao, Not. R. Astron. Soc. 278 (1996) 488.
- A Burkret. J. 447 (1995) l25.
- J F Navarro, et al., Royal Astron. Soc. 275, 3 (1995).
- L Hernquist, J. 356 (1990), 359.
- J L Feng, Rev. Astron. Astrophys. 48 (2010) 495.
- J E Taylor and J Silk, Not. Roy. Astron. Soc. 339 (2003) 505.
- Z Xu, et al., Cosmol. Astropart. Phys. 09 (2018) 038.
- C Zhang, et al., Rev. D 104 (2021) 124082.
- D Liu, et al. Rev. D 104 (2021) 104042.
- K Jusufi, et al., Phys. J. C 80 (2020) 354.
- X Hou, et al., JCAP 07 (2018) 015.
- R A Konoplya and Z Stuchlík, Lett. B 771 (2017) 597.
- V Cardoso, et al., Rev. D 105 (2022) L061501.
- Y S Myung, arXiv:2402.03606 [gr-qc] (2024).
- S V M C B Xavier, et al., Rev. D 107 (2023) 064040.
- K Jusufi, et al., Phys. J. C 83 (2023) 103.
- M HeydariFardr and N Riazi, Relativ. Gravit. 57, 2 (2025) 49.
- R A Konoplya and A Zhidenko, J. 933, 2 (2022) 166.
- E Berti, V Cardoso and C M Will, Rev. D 73 (2006) 064030.
- M HeydariFard and F Eghbalpoor, IJPR. 20 (2021) 3 (Persian).
- M S Longair, “High Energy Astrophysics” Third Edition. New York: Cambridge University Press (2011).
- D N Page and K S Thorne, J. 191 (1974) 499.
- K S Thorne, Astrophys. J. 191 (1974) 507.
- C Bambi, “Black Hole:A Laboratory For Testing Strong Gravity” Singapore: Springer Nature (2017).
- W Dehnen, Not. R. Astron. Soc. 265 (1993) 250
- W Jaffe, Not. R. Astron. Soc. 202 (1983) 995.
)