• Marek Nowakowski

      Articles written in Journal of Astrophysics and Astronomy

    • Extracting Information from the Gravitational Redshift of Compact Rotating Objects

      Paul D. Nuñez Marek Nowakowski

      More Details Abstract Fulltext PDF

      Essential macroscopic internal properties of compact objects can be related to each other with the help of General Relativity. A somewhat familiar example is the relationship between the compactness 𝑀/𝑅 and the gravitational redshift for nonrotating bodies. Rotation poses new challenges when trying to relate observed or potentially observed quantities such as the graviational redshift, mass, radius, and angular velocity. Using a perturbative approach, we present an analytical approximation whose purpose is to relate these quantities. Two main results are highlighted: Derivation of a new maximal angular velocity depending only on the mass of the object and a possible estimate of the radius from a measurement of the gravitational redshift.

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      Posted on January 27, 2016

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