caa a22 4500 445387106 CHVBK 20180317143035.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10714-011-1183-9 doi (NATIONALLICENCE)springer-10.1007/s10714-011-1183-9 Geodesic motions in extraordinary string geometry [Elektronische Daten] [Bogeun Gwak, Bum-Hoon Lee, Wonwoo Lee, Hyeong-Chan Kim] The geodesic properties of the stationary vacuum string solution in (4+1) dimensions with momentum flow along the string direction are analyzed by using Hamilton-Jacobi method. The geodesic motions show distinct properties from those of the static one. Especially, any freely falling particle can not arrive at the horizon or singularity. To get into the horizon, a particle need to follow a non-geodesic trajectory. There exist stable null circular orbits and bouncing timelike and null geodesics. In the asymptotic geometry, some geodesics will be repelled by the string contrary to the case of Kerr-Neumann black hole. The light bending effect will be minimized at an impact parameter determined by the angular momentum and energy. Springer Science+Business Media, LLC, 2011 Black hole nationallicence Black string nationallicence Geodesics nationallicence Gwak Bogeun Department of Physics and BK21 Division and Center for Quantum Spacetime, Sogang University, 121-742, Seoul, Korea aut Lee Bum-Hoon Department of Physics and BK21 Division and Center for Quantum Spacetime, Sogang University, 121-742, Seoul, Korea aut Lee Wonwoo Department of Physics and BK21 Division and Center for Quantum Spacetime, Sogang University, 121-742, Seoul, Korea aut Kim Hyeong-Chan School of Liberal Arts, Chungju National University, 380-702, Chungju, Korea aut General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/8(2011-08-01), 2277-2296 0001-7701 43:8<2277 2011 43 10714 https://doi.org/10.1007/s10714-011-1183-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10714-011-1183-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gwak Bogeun Department of Physics and BK21 Division and Center for Quantum Spacetime, Sogang University, 121-742, Seoul, Korea aut NATIONALLICENCE 700 1- Lee Bum-Hoon Department of Physics and BK21 Division and Center for Quantum Spacetime, Sogang University, 121-742, Seoul, Korea aut NATIONALLICENCE 700 1- Lee Wonwoo Department of Physics and BK21 Division and Center for Quantum Spacetime, Sogang University, 121-742, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Hyeong-Chan School of Liberal Arts, Chungju National University, 380-702, Chungju, Korea aut NATIONALLICENCE 773 0- General Relativity and Gravitation Springer US; http://www.springer-ny.com 43/8(2011-08-01), 2277-2296 0001-7701 43:8<2277 2011 43 10714 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer