Motion of spinning test bodies in Kerr spacetime
Eva HackmannZARM, University of Bremen, Am Fallturm, 28359 Bremen, GermanyCláus LämmerzahlInstitut für Physik, Universität Oldenburg, 26111 Oldenburg, GermanyYuri N. ObukhovTheoretical Physics Laboratory, Nuclear Safety Institute, Russian Academy of Sciences, B.Tulskaya 52, 115191 Moscow, RussiaDirk PuetzfeldZARM, University of Bremen, Am Fallturm, 28359 Bremen, GermanyIsabell SchafferInstitut für Physik, Universität Oldenburg, 26111 Oldenburg, Germany
2014en
ABI
Аннотация
We investigate the motion of spinning test bodies in General Relativity. By means of a multipolar approximation method for extended test bodies we derive the equations of motion and classify the orbital motion of pole-dipole test bodies in the equatorial plane of the Kerr geometry. An exact expression for the periastron shift of a spinning test body is given. Implications of test body spin corrections are studied and compared with the results obtained by means of other approximation schemes.
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