An extremely dense neutron star causes significant spacetime curvature; which effect dominates the observed Shapiro delay of radio signals passing near it?

💡 Explanation

The Shapiro delay, or gravitational time delay, increases the signal travel time because the increased spacetime curvature near the neutron star effectively lengthens the path the radio waves must follow. Therefore, the travel time increases, rather than decreasing in intensity or shifting in frequency due to redshift effects.

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