Probing the parameters of a Schwarzschild black hole surrounded by quintessence and cloud of strings through four standard astrophysical tests

In this paper, we concern about applying general relativistic tests on the spacetime produced by a static black hole associated with cloud of strings, in universe filled quintessence. The four apply are precession perihelion planetary orbits, gravitational redshift, deflection light, and Shapiro time delay. Through process, constrain spacetime's parameters context observational data, which results $\sim 10^{-9}$ for strings parameter, 10^{-20}$ m$^{-1}$ that response to perturbations is also discussed.