All Outputs (4)

Modified Kepler's law, escape speed and two-body problem in MOND-like theories (2010)
Journal Article
Zhao, H., Li, B., & Bienaymé, O. (2010). Modified Kepler's law, escape speed and two-body problem in MOND-like theories. Physical Review D, 82(10), Article 103001. https://doi.org/10.1103/physrevd.82.103001

We derive a simple analytical expression for the two-body force in a subclass of modified Newtonian dynamics (MOND) theories and make testable predictions in the modification to the two-body orbital period, shape, precession rate, escape speed, etc.... Read More about Modified Kepler's law, escape speed and two-body problem in MOND-like theories.

Structure formation by the fifth force: segregation of baryons and dark matter (2010)
Journal Article
Li, B., & Zhao, H. (2010). Structure formation by the fifth force: segregation of baryons and dark matter. Physical Review D, 81(10), Article 104047. https://doi.org/10.1103/physrevd.81.104047

In this paper we present the results of N-body simulations with a scalar field coupled differently to cold dark matter (CDM) and baryons. The scalar field potential and coupling function are chosen such that the scalar field acquires a heavy mass in... Read More about Structure formation by the fifth force: segregation of baryons and dark matter.

Structure formation by fifth force: power spectrum from N-Body simulations (2010)
Journal Article
Zhao, H., Maccio, A., Li, B., Hoekstra, H., & Feix, M. (2010). Structure formation by fifth force: power spectrum from N-Body simulations. Astrophysical Journal Letters, 712(2), L179-L183. https://doi.org/10.1088/2041-8205/712/2/l179

We lay out the framework to numerically study nonlinear structure formation in the context of scalar-field-coupled cold dark matter models (phivCDM models) where the scalar field phiv serves as dynamical dark energy. Adopting parameters for the scala... Read More about Structure formation by fifth force: power spectrum from N-Body simulations.

Dark fluid: A unified framework for modified Newtonian dynamics, dark matter, and dark energy (2010)
Journal Article
Zhao, H., & Li, B. (2010). Dark fluid: A unified framework for modified Newtonian dynamics, dark matter, and dark energy. Astrophysical Journal, 712(1), 130-141. https://doi.org/10.1088/0004-637x/712/1/130

Empirical theories of dark matter (DM) like modified Newtonian dynamics (MOND) gravity and of dark energy (DE) like f(R) gravity were motivated by astronomical data. But could these theories be branches rooted from a more general and hence generic fr... Read More about Dark fluid: A unified framework for modified Newtonian dynamics, dark matter, and dark energy.