Abstract
In this note we consider a variable G cosmology which is consistent with observation and which had successfully predicted an ever expanding accelerating universe with a small cosmological constant amongst other things. Three further tests are proposed in this note: First, the inexplicable anomalous accelerations of the Pioneer spacecrafts can be explained. It is then shown that the observed shortening of the orbital periods of binary pulsars is in good agreement with this model. Finally, more general changes in orbital parameters are deduced, which may be observed in the future.
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References
1. R. P. Kirshner, Proc. Natl. Acad. Sci. 96, 4224–4227 (1999).
2. J. V. Narlikar, Introduction to Cosmology (University Press, Cambridge, 1993), p. 57.
3. J. D. Barrow and P. Parsons, Phys. Rev. D. 55 (4), 1906 (1997).
4. J. V. Narlikar, Found. Phys. 13 (3), 311 (1983).
5. J. V. Narlikar, The Structure of the Universe (Oxford University Press, Delhi, 1977), pp. 169ff.
6. B. G. Sidharth, Chaotic Universe: From the Planck to the Hubble Scale (Nova Science, New York, 2002).
7. B. G. Sidharth, Int. J. Mod. Phys. A 13 (15), 2599 (1998).
8. B. G. Sidharth, Int. J. Th. Phys. 37 (4), 1307 (1998).
9. B. G. Sidharth, Chaos, Solitons and Fractals 16 (4), 613 (2003).
10. B. G. Sidharth, Chaos, Solitons and Fractals 18 (1), 197 (2003).
11. S. Perlmutter et al., Nature 391, 51 (1998).
12. J. Glanz, Science 282, 2156 (1998).
13. Science 302 (5653), 2038 (2003).
14. B. G. Sidharth, The Universe of Fluctuations (Springer, Dordrecht, 2005).
15. S. Weinberg, Gravitation and Cosmology (Wiley, New York, 1972), p. 62.
16. B. G. Sidharth, Nuovo Cimento 115B, 151 (2000).
17. B. G. Sidharth, Chaos, Solitons and Fractals 22, 537 (2004).
18. J. D. Anderson et al., Phys. Rev. D 65, 082004 (2002).
19. H. Goldstein, Classical Mechanics (Addison-Wesley, Reading, MA, 1966), pp. 76ff.
20. C. H. Ohanian and R. Ruffini, Gravitation and Spacetime (New York, 1994), pp. 64ff.
21. C. Will, in The New Physics, P. Davies, ed. (University Press, Cambridge, 1989), p. 7ff.
22. J. P. Uzan, Rev. Mod. Phys. 75, 403 (2003).
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Sidharth, B. Tests for Varying G . Found Phys Lett 19, 611–617 (2006). https://doi.org/10.1007/s10702-006-1014-5
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DOI: https://doi.org/10.1007/s10702-006-1014-5