Thin-shell Solution of Chameleon Mechanism in Brans-Dicke Scalar-Tensor Model
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Abstract
We investigated the chameleon screening mechanism in Brans-Dicke scalar-tensor theory. We preserved the fundamental premise of the typical chameleon mechanism, which is that the field is huge in high-density environments but essentially free in low-density environments like the solar system. We discovered thin-shell solutions for a static and spherical symmetric body and demonstrated the model’s applicability to local data.
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Sutiono, A., Widiyani, A., Marliana, M., Hikmawan, G., Suroso, A., & Zen, F. (2022). Thin-shell Solution of Chameleon Mechanism in Brans-Dicke Scalar-Tensor Model. Indonesian Journal of Physics, 33(1), 1 - 7. https://doi.org/10.5614/itb.ijp.2022.33.1.1
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References
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[3] S.Perlmutter et. al., Discovery of a Supernova Explosion at Half the Age of the Universe and its Cosmological Implications, Nature 391, 51,1998.
[4] M. Hicken et al., Astrophys. J. 700, 1097, 2009 [arXiv:0901.4804 [astro-ph].
[5] E. Komatsu et al., Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation, Astrophys. J. Suppl. 180, 330, 2009 arXiv : 0803.0547 [astro-ph].
[6] Khoury, J., and Weltman, A., Chameleon cosmology, Phys. Rev. D 69, 044026, 2004.
[7] Khoury, J., and Weltman, A., Chameleon Fields: Awaiting Surprises for Tests of Gravity in Space, Phys.Rev.Lett. 93 171104, 2004.
[8] Waterhouse, T. P., An Introduction to Chameleon Gravity, 2006[ astro-ph/061186].
[9] C. Brans and R. H. Dicke, Mach's Principle and a Relativistic Theory of Gravitation, Phys. Rev. 124, 925, 1961
[10] G. Hinshaw et al., Nine-year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results, Astrophys. J. Suppl., 208, 19, 2013.
[11] Y. Bisabr, Notes on the Chameleon Brans-Dicke gravity, Astrophysics and Space Science 350, 407-411, 2014.
[12] K. Saaidi et al., γ parameter and Solar System constraint in chameleon-Brans-Dicke theory, Physical Review D, 83, 104019, 2011.
[13] T. Nakamura et al., Chameleon field in a spherical shell system, Physical Review D, 99, 044024, 2019.
[14] J. Lu et al., The generalized Brans-Dicke theory and its cosmology, Eur. Phys. J. Plus, 134, 318, 2019.
[15] C. Burrage and J. Sakstein, Tests of chameleon gravity, Living Rev. Relativity 21, 1, 2018