| [1] | S. Fernando, Phys. Rev. D, 79:124026 (2009) | 
	
			| [2] | I. Sakalli, Int. J. Mod. Phys. A, 26:2263-2269 (2011); Int. J. Mod. Phys. A, 28:1392002 (2013) | 
	
			| [3] | D. Du, B. Wang, and R. Su, Phys. Rev. D, 70:064024 (2004) | 
	
			| [4] | C. Chirenti, Braz. J. Phys., 48(1):102 (2018) | 
	
			| [5] | K. D. Kokkotas and B. G. Schmidt, Living Rev. Rel., 2:2 (1999), arXiv:gr-qc/9909058 | 
	
			| [6] | H-P Nollert, Class. Quantum Grav., 16:R159 (1999) | 
	
			| [7] | E. Berti, V. Cardoso, and A. O. Starinets, Class. Quantum Grav., 26:163001 (2009) | 
	
			| [8] | A. Flachi and J. P. S. Lemos, Phys. Rev. D, 87:024034 (2013) | 
	
			| [9] | A. Nagar and L. Rezzolla, Class. Quantum Grav., 22:R167 (2005) | 
	
			| [10] | C. B. M. H. Chirenti and L. Rezzolla, Class. Quantum Grav., 24:4191 (2007) | 
	
			| [11] | B. Toshmatov, C. Bambi, B. Ahmedov, Z. Stuchlik, and J. Schee, Phys. Rev. D, 96:064028 (2017) | 
	
			| [12] | S. Aneesh, S. Bose, and S. Kar, Phys. Rev. D, 97:124004 (2018) | 
	
			| [13] | B. P. Abbott et al (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. Lett., 116:061102 (2016) | 
	
			| [14] | B. P. Abbott et al (LIGO Scientific Collaboration and Virgo Collaboration), Phys. Rev. Lett., 119:161101 (2017) | 
	
			| [15] | A. Krolak and M. Patil, Universe, 3:59 (2017) | 
	
			| [16] | N. Stergioulas, Living Rev Relativ., 1:8 (1998) | 
	
			| [17] | J. Abadie et al (LIGO Scientific Collaboration), Nat. Phys., 7:962 (2011) | 
	
			| [18] | M. Page, J. Qin, J. La Fontaine, C. Zhao, and D. Blair, Phys. Rev. D, 97:124060 (2018) | 
	
			| [19] | P. A. Gonzalez, J. Saavedra, and Y. Vasquez, Int. J. Mod. Phys. D, 21:125005 (2012) | 
	
			| [20] | S. Iyer and C. M. Will, Phys. Rev. D, 35:3621 (1987) | 
	
			| [21] | R. A. Konoplya, Phys. Rev. D, 68:024018 (2003) | 
	
			| [22] | R. Konoplya, Phys. Rev. D, 71:024038 (2005) | 
	
			| [23] | R. A. Konoplya and A. Zhidenko, Phys. Rev. Lett., 103:161101 (2009) | 
	
			| [24] | S. Fernando, Phys. Rev. D, 77:124005 (2008) | 
	
			| [25] | S. Fernando, Gen. Rel. Grav., 36:71 (2004) | 
	
			| [26] | S. Fernando, Int. J. Mod. Phys. D, 24:1550104 (2015) | 
	
			| [27] | N. Breton, T. Clark, and S. Fernando, Int. J. Mod. Phys. D, 26(10):1750112 (2017) | 
	
			| [28] | I. Sakalli, Mod. Phys. Lett. A, 28:1350109 (2013) | 
	
			| [29] | I. Sakalli and S. F. Mirekhtiary, Astrophys.Space Sci., 350:727 (2014) | 
	
			| [30] | I. Sakalli, Eur. Phys. J. C, 75(4):144 (2015) | 
	
			| [31] | B. S. Kandemir and U. Ertem, Annalen Der Physik, 529:1600330 (2017) | 
	
			| [32] | I. Sakalli and G. Tokgoz, Annalen Der Physik, 528:612 (2016) | 
	
			| [33] | A. vgn and K. Jusufi, Annals Phys. 395:138 (2018) | 
	
			| [34] | I. Sakalli, K. Jusufi, and A. vgn, arXiv:1803.10583[gr-qc] | 
	
			| [35] | K. Jusufi, I. Sakalli and A. vgn, Gen. Rel. Grav., 50(1):10 (2018) | 
	
			| [36] | P. A. Gonzalez, A. vgn, J. Saavedra, and Y. Vasquez, Gen. Rel. Grav., 50(6):62 (2018) | 
	
			| [37] | R. Becar, S. Lepe, and J. Saavedra, Phys.Rev. D, 75:084021 (2007) | 
	
			| [38] | J. Saavedra, Mod. Phys. Lett. A, 21:1601 (2006) | 
	
			| [39] | S. Lepe, and J. Saavedra, Phys. Lett. B, 617:174 (2005) | 
	
			| [40] | J. Crisostomo, Samuel Lepe and J. Saavedra, Class. Quant. Grav. 21:2801 (2004) | 
	
			| [41] | P. A. Gonzalez, E. Papantonopoulos, J. Saavedra, and Y.Vasquez, Phys. Rev. D, 95(6):064046 (2017) | 
	
			| [42] | M. Cruz, M. Gonzalez-Espinoza, J. Saavedra, and D. Vargas-Arancibia, Eur. Phys. J. C, 76(2):75 (2016) | 
	
			| [43] | X. Kuang and J. Wu, Phys. Lett. B, 770:117 (2017) | 
	
			| [44] | X. He, B. Wang, S. Wu, and C. Lin, Phys. Lett. B, 673:156 (2009) | 
	
			| [45] | X. Rao, B. Wang, and G. Yang, Phys. Lett. B, 649:472 (2007) | 
	
			| [46] | S. Chen, B. Wang and R. Su, Class. Quantum Grav., 23:7581 (2006) | 
	
			| [47] | X. He, Songbai-Chen, B. Wang, R. Cai, and C. Lin, Phys. Lett. B, 665:392 (2008) | 
	
			| [48] | X. He, B. Wang, and S. Chen, Phys. Rev. D, 79:084005 (2009) | 
	
			| [49] | B. Wang, C. Lin and E. Abdalla, Phys. Lett. B, 481:79 (2000) | 
	
			| [50] | B. Wang, C. Lin, and C. Molina, Phys. Rev. D, 70:064025 (2004) | 
	
			| [51] | A. Jansen, Eur. Phys. J. Plus, 132(12):546 (2017) | 
	
			| [52] | M. Halilsoy and A. Al-Badawi, IL Nuovo Cimento B, 113:761 (1998) | 
	
			| [53] | M. Halilsoy, Gen. Relativ. Gravit., 25(3):275 (1992) | 
	
			| [54] | M. Halilsoy and A. Al-Badawi, Class. Quantum Grav., 12:3013 (1995) | 
	
			| [55] | A. Ovgun, Int. J. Theor. Phys., 55(6):2919 (2016) | 
	
			| [56] | H. Reissner, Annalen der Physik (in German), 50:106 (1916) | 
	
			| [57] | G. Nordstrm, Verhandl. Koninkl. Ned. Akad. Wetenschap., Afdel. Natuurk., Amsterdam., 26:1201 (1918) | 
	
			| [58] | S. Chandrasekhar, The Mathematical Theory of Black Holes (New York:Oxford University Press, 1983) | 
	
			| [59] | R. M. Wald, General Relativity (The University of Chicago Press, Chicago and London, 1984) | 
	
			| [60] | S. Q. Wu and X. Cai, J. Math. Phys. (N.Y.), 44:1084 (2003) | 
	
			| [61] | M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions (Dover, New York, 1965) | 
	
			| [62] | H. S. Vieira, V. B. Bezerra, and G. V. Silva, Ann. Phys. (Amsterdam), 362:576 (2015) | 
	
			| [63] | K. Heun, Math. Ann., 33:161 (1888) | 
	
			| [64] | A. Ronveaux, Heun's differential equations:(New York:Oxford University Press, 1995) | 
	
			| [65] | R. S. Maier, The 192 Solutions of Heun Equation:(Preprint math CA/0408317, 2004) | 
	
			| [66] | P. P. Fiziev, J. Phys. A:Math. Theor., 43:035203 (2010) | 
	
			| [67] | I. Sakalli and M. Halilsoy, Phys. Rev. D, 69:124012 (2004) | 
	
			| [68] | A. Al-Badawi and I. Sakalli, J. Math. Phys., 49:052501 (2008) | 
	
			| [69] | T. Birkandan and M. Hortacsu, EPL, 119(2):20002 (2017) | 
	
			| [70] | I. Sakalli, Phys. Rev. D, 94:084040 (2016) | 
	
			| [71] | G. V. Kraniotis, 2016 Class. Quantum Grav., 33:225011 (2016) | 
	
			| [72] | Here, the computer package, Maple 2017 is used for solving the confluent Heun differential equation | 
	
			| [73] | H. S. Vieira and V. B. Bezerra, Ann. Phys. (NY), 373:28 (2016) | 
	
			| [74] | H. S. Vieira, J. P. Morais Graca, and V. B. Bezerra, Chin. Phys. C, 41:095102 (2017) | 
	
			| [75] | V. Frolov and I. Novikov, Black Hole Physics:Basic Concepts and New Developments. Fundamental Theories of Physics (Kluwer Academic, London, 1998) | 
	
			| [76] | P. P. Fiziev, Class. Quantum Grav., 27:135001 (2010) | 
	
			| [77] | S. A. Teukolsky, Phys. Rev. Lett., 29:1114 (1972); S. A. Teukolsky, Astrophys. J., 185:635 (1973); W. H. Press and S. A. Teukolsky, Astrophys. J., 185:649 (1973); S. A. Teukolsky and W. H. Press, Astrophys. J., 193:443 (1974) | 
	
			| [78] | P. P. Fiziev, Phys. Rev. D, 80:124001 (2009) | 
	
			| [79] | S. Chandrasekhar, Proc. R. Soc. London A, 348:39 (1976); Proc. R. Soc. London A, 372:475 (1980) | 
	
			| [80] | S. Hod, arXiv:gr-qc/0307060 (2003) | 
	
			| [81] | E. Berti, V. Cardoso, K. D. Kokkotas, and H. Onozawa, Phys. Rev. D, 68:124018 (2003) | 
	
			| [82] | L. Motl, Ad. Theor. Math. Phys., 6:1135 (2002) | 
	
			| [83] | R. A. Konoplya and A. Zhidenko, Rev. Mod. Phys., 83:793 (2011) | 
	
			| [84] | H. J. Blome and B. Mashhoon, Phys. Lett. A, 110:231 (1984) | 
	
			| [85] | P. Musgrave and K. Lake, Class. Quant. Grav., 13:1885 (1996) | 
	
			| [86] | B. Toshmatov, A. Abdujabbarov, Z. Stuchlik, and B. Ahmedov, Phys. Rev. D, 91:083008 (2015) | 
	
			| [87] | B. Toshmatov, A. Abdujabbarov, J. Schee, and B. Ahmedov, Phys. Rev. D, 93:124017 (2016) | 
	
			| [88] | V. Cardoso, A. S. Miranda, E. Berti, H. Witeck, and V. T. Zanchin, Phys. Rev. D, 79:064016 (2009) | 
	
			| [89] | B. Mashhoon, Phys. Rev. D, 31:290 (1985) | 
	
			| [90] | R. A. Konoplya and Z. Stuchlik, Phys. Lett. B, 771:597 (2017) |