Relationship between distance and redshift

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2 months ago

# @StackPhysics

$$1+z=\frac{a(t_0)}{a(t_e)}$$ $$d_p(t_0) = c \int_{t_e}^{t_0} \frac{dt}{a(t)}$$ $$q_0=-\Big( \frac{\ddot{a}a}{\dot{a}^2} \Big)_{t=t_0}$$ How can you prove the relationship between proper distance and ...Read More