Collective scattering of massive stars in higher order gravity
Hadjimichef, D. [UNESP]
Kokubun, F. [UNESP]
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In the weak field approximation of higher order gravity theory a gravitational potential is described by a Newtonian plus a Yukawa-like term. This new term is used to explain some aspects of galactic dynamics, without considering dark matter. Its presence modifies the scattering probability of a massive intruder star and relaxation time of the stellar system.
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 55, n. 2, p. 733-738, 1997.