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Surrounded Vaidya black holes: apparent horizon properties

( 1994 ) 21. H. Saida , T. Harada , H. Maeda , Class. Quantum Gravity 24 , 4711 ( 2007 ) 22. A. Chamorro , K.S. Virbhadra , Pramana 45 ( 2 ), 181 ( 1995 ) 23. Y. Heydarzade , F. Darabi , arXiv: 1710 ... . 04485 24. Y. Heydarzade , F. Darabi , Eur. Phys. J. C (under review) 25. V. Husain, Phys. Rev. D 53 , 1759 ( 1996 ) 26. A. Wang , Y. Wu , Gen. Relativ. Gravity 31 ( 1 ), 107 ( 1999 ) 27. J.M. Bardeen , B

Einstein and Rastall theories of gravitation in comparison

. Space Sci. 298, 519 (2005) 26. A.F. Santos, S.C. Ulhoa, Mod. Phys. Lett. A 30, 1550039 (2015) 27. Y. Heydarzade, F. Darabi, Phys. Lett. B 771, 365 (2017) 28. Y. Heydarzade, H. Moradpour, F. Darabi, Can ... . Lett. 118, 021102 (2017) 38. V. Dzhunushaliev, H. Quevedo, Gravit. Cosmol. 23, 280 (2017) 39. Y. Heydarzade, H. Hadi, C. Corda, F. Darabi, Phys. Lett. B 776, 457 (2018) 40. H. Moradpour, A. Bonilla

Emergent cosmos in Einstein–Cartan theory

. Bekenstein , Phys. Rev. D 23 , 287 ( 1981 ) 154. S. Chakraborty, T. Padmanabhan, Phys. Rev. D 90 , 124017 ( 2014 ) 155. R. Dey , S. Liberati , A. Mohd , Phys. Rev. D 94 , 044013 ( 2016 ) 156. Y. Heydarzade , H ... , M. De Laurentis , E.N. Saridakis , Rep. Prog. Phys. 79 , 106901 ( 2016 ) 169. D.W. Tian , I. Booth , Phys. Rev. D 90 ( 10 ), 104042 ( 2014 ) 170. H. Hadi , Y. Heydarzade , F. Darabi , arXiv: 1609

A generalization to the Rastall theory and cosmic eras

A generalized version for the Rastall theory is proposed showing the agreement with the cosmic accelerating expansion. In this regard, a coupling between geometry and the pressureless matter fields is derived which may play the role of dark energy, responsible for the current accelerating expansion phase. Moreover, our study also shows that the radiation field may not be coupled...

Emergent universe in the braneworld scenario

According to Padmanabhan’s proposal, the difference between the surface degrees of freedom and the bulk degrees of freedom in a region of space may result in the acceleration of Universe expansion through the relation \(\Delta V/\Delta t = N_\mathrm{sur}-N_\mathrm{bulk}\) where \(N_\mathrm{bulk}\) and \(N_\mathrm{sur}\) are referred to the degrees of freedom related to the matter...

On the stability of Einstein static universe in doubly general relativity scenario

) 57. C.G. Bohmer, F.S.N. Lobo, Eur. Phys. J. C 70, 1111 (2010). P. Wu and H. Yu. Phys. Rev. D 81, 103522 (2010) 58. P. Wu, HYu. Phys, Rev. D 81, 103522 (2010) 59. Y. Heydarzade, M. Khodadi, F. Darabi ... (2012) 63. C. Clarkson, S.S. Seahra, Class. Quant. Grav. 22, 3653 (2005) 64. K. Atazadeh, Y. Heydarzade, F. Darabi, Phys. Lett. B 732, 223 (2014) 65. Y. Heydarzade, F. Darabi, JCAP 04, 028 (2015) 66. D.J