Abstract
A non-conventional approach is developed and used to find the primordial angular gradient, anisotropy, of the temperature of the Cosmic Microwave Background Radiation (CMBR), as well as the density fluctuations in an adiabatic expanding universe. The obtained results is a consequence of considering the magnitude of the angular gradient of the temperature of the CMBR as a constant function with respect to the proper time of the spatially perturbed FRW expanding universe.
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References
Anile, A.M. and Motta, S.: 1976, Astrophys. J. 207, 685.
Challinor, A. and Lasenby, A.: 1999, Astrophys. J. 513, 1.
Clarck, S.: 1997, Towards the Edge of the Universe-A Review of Modern Cosmology 63, JohnWiley and Sons, New York.
Collins, P.D.B., Martin, A.D. and Squires, E.J.: 1989, Particle Physics and Cosmology 378 & 411, John Wiley and Sons, New York.
Hu, W., Sugiyama, N. and Silk, J.: 1997, Nature, 386.
Linder, E.: 1997, First Principles of Cosmology 149, Addison-Wesley, California.
Lineweaver, C.L.: 1997, From Quantum Fluctuations to Cosmological Structures, in: Valls-Gabaud, M. Hendry, P. Molaro and K. Chamcham (eds.), ASP Conf. Ser. 126, 185.
MacCallum, M.A.H.: 1979, in: S.W. Hawking and W. Israel (eds.), General Relativity-An Einstein Centenary Survey 533, Cambridge University Press, Cambridge, London.
Melek, M.: 1995, Astrophys. Space Sci. 228, 327.
Melek, M.: 1996, Examining the Big Bang and Diffuse Background Radiation, in: M. Kafatos and Y. Kondo (eds.), Proceedings of the IAU 168th Symposium 461, Kluwer Academic Publishers, Dordrecht, Holland.
Melek, M.: 2000, Astrophys. Space Sci. 272, 417.
Partridge, R.B.: 1995, 3K: The Cosmic Microwave Background, Cambridge University Press, Cambridge, London.
Partridge, R.B.: 1997, in: C. Lindweaver et al. (eds.), Cosmic Background Radiation, Kluwer Academic Publishers, Dordrecht, Holland.
Peebles, P.J.E. and Yu, J.T.: 1970, Astrophys. J. 162, 815.
Ryan, M.P. and Shepley, L.C.: 1975, Homogeneous Relativistic Cosmology 202, 215, Princeton University Press, Princeton, New Jersey.
Sachs, R.K. and Wolfe, A.M.: 1967, Astrophys. J. 147, 73.
Silk, J.: 1992, Nature 356, 741.
Wright, E.L., et al.: 1992, Astrophys. J. 396, L13.
Wright, E.L., et al.: 1994, Astrophys. J. 420, 450.
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Melek, M. Primordial Angular Gradients In The Temperature Of The CMBR And The Density Fluctuations. Astrophysics and Space Science 281, 743–750 (2002). https://doi.org/10.1023/A:1016324411932
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DOI: https://doi.org/10.1023/A:1016324411932