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@inproceedings{42089, author = {Bakala, Pavel and Stuchlík, Zdeněk and Šrámková, Eva and Török, Gabriel}, address = {Sweden}, booktitle = {COOL DISCS, HOT FLOWS: THE VARYING FACES OF ACCRETING COMPACT OBJECTS}, keywords = {neutron stars, X-rays, binaries, magnetic fields}, language = {eng}, location = {Sweden}, isbn = {978-0-7354-0584-4}, publisher = {Wenner Gren Fdn; Swedish Res Council; Stockholm Univ}, title = {On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model}, year = {2008} }
TY - JOUR ID - 42089 AU - Bakala, Pavel - Stuchlík, Zdeněk - Šrámková, Eva - Török, Gabriel PY - 2008 TI - On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model PB - Wenner Gren Fdn; Swedish Res Council; Stockholm Univ CY - Sweden SN - 9780735405844 KW - neutron stars, X-rays, binaries, magnetic fields N2 - Fitting the observational data of the twin peak kHz quasiperiodic oscillations (QPO) from low mass X-ray binaries (LMXBs) by the relativistic precession model gives a substantially higher neutron star mass estimate, M similar to 2 M-circle dot, than the"canonical value", M similar to 1.4 M-circle dot. Using a fully general relativistic approach we discuss the non-geodesic corrections to the orbital and epicyclic frequencies of slightly charged circularly orbiting test particles caused by the presence of a neutron star magnetic field. We show that consideration of such non-geodesic corrections can bring down the neutron star mass estimate and improve the quality of twin peak QPO data fits based on relativistic precession frequency relations. ER -
BAKALA, Pavel, Zdeněk STUCHLÍK, Eva ŠRÁMKOVÁ and Gabriel TÖRÖK. On magnetic-field induced non-geodesic corrections to the relativistic precession QPO model. In \textit{COOL DISCS, HOT FLOWS: THE VARYING FACES OF ACCRETING COMPACT OBJECTS}. Sweden: Wenner Gren Fdn; Swedish Res Council; Stockholm Univ, 2008, 6 pp. ISBN~978-0-7354-0584-4.
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