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We investigate the influence of noninertial and spin effects on the 2D Dirac oscillator (DO) interacting with a uniform magnetic field and with the Aharonov-Bohm (AB) effect in the cosmic string spacetime. As results, we verify that the Dirac spinor is written in terms of the confluent hypergeometric functions and the energy spectrum depends of the quantum numbers $n$ and $m_l$, parameters $s$ and $\eta$ associated to the spin effects and to topology of the cosmic string, magnetic flux $\Phi$ of the AB effect, cyclotron frequency $\omega_c$ generated by magnetic field, and of the angular velocity $\Omega$ of the rotating frame. In the nonrelativistic limit, we obtain the equation of motion of the quantum harmonic oscillator with two types of couplings: the spin-orbit coupling and the spin-rotation coupling. In particular, the relativistic and nonrelativistic energy spectra are periodic functions and increase in function of $\eta$ and $\Omega$. Finally, we comparing our results with other works, where verified that our problem generalizes some particular planar cases of the literature.

Noninertial and spin effects on the 2D Dirac oscillator in the magnetic cosmic string background