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Probing Brownstein-Moffat Gravity via Numerical Simulations · Around

2010

Probing Brownstein-Moffat Gravity via Numerical Simulations

Brandao, C. S. S., de Araujo, J. C. N.

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In the standard scenario of the Newtonian gravity, a late-type galaxy (i.e., a spiral galaxy) is well described by a disk and a bulge embedded in a halo mainly composed by dark matter.

In Brownstein-Moffat gravity, there is a claim that late-type galaxy systems would not need to have halos, avoiding as a result the dark matter problem, i.e., a modified gravity (non-Newtonian) would account for the galactic structure with no need of dark matter.
In the present paper, we probe this claim via numerical simulations.
Instead of using a "static galaxy," where the centrifugal equilibrium is usually adopted, we probe the Brownstein-Moffat gravity dynamically via numerical $N$-body simulations.

Built on

van Albada, T. S., Bahcall, J. N., Begeman, K., & Sancisi, R. 1985, ApJ, 295, 305
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Binney, J., & Merrifield, M. 1998, Galactic Astronomy (Princeton, NJ: Princeton Univ. Press)
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Sofue, Y., & Rubin, V. 2001, ARA&A, 39, 137
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Similar

Milgrom, M., & Sanders, R. H. 2005, MNRAS, 357, 45
2005
Cited alongside, same era.
Springel, V. 2005, MNRAS, 364, 1105
2005
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Springel, V., Di Matteo, T., & Hernquist, L. 2005, MNRAS, 361, 776
2005
Cited alongside, same era.
Binney, J., & Tremaine, S. 2008, Galactic Dynamics (2nd ed.; Princeton, NJ: Princeton Univ. Press)
2008
Cited alongside, same era.
Brandao, C. S. S., & de Araujo, J. C. 2010a, Gen. Rel. Grav., 42, 623
Cited in the paper.
Brandao, C. S. S., & de Araujo, J. C. 2010b, Gen. Rel. Grav., 42, 777
Cited in the paper.
Brandao, C. S. S., & de Araujo, J. C. 2010c, submitted
Cited in the paper.
Brownstein, J. R., & Moffat, J. W. 2006a, ApJ, 636, 721
Cited in the paper.
Brownstein, J. R., & Moffat, J. W. 2006b, MNRAS, 367, 527
Cited in the paper.

Then

Milgrom, M., arXiv:0801.3133v2
Original
2008
Later among the works it cites.
Moffat, J. W. & Toth, V. T. 2008, ApJ, 680, 1158
2008
Later among the works it cites.
Moffat, J. W. & Toth, V. T. 2009, Classical and Quantum Gravity, 26, 085002
2009
Later among the works it cites.

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